2025-11-21 15:17:59 +00:00
17 changed files with 1984 additions and 72 deletions
@@ -23,13 +23,13 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   
   <properties>
-      <revision>0.1.2</revision>
+      <revision>0.1.3-SNAPSHOT</revision>
   </properties>

   <parent>
      <groupId>com.kingsrook</groupId>
      <artifactId>qbit-build-parent</artifactId>
-      <version>1.4.0</version>
+      <version>1.1.0</version>
   </parent>

   <groupId>com.kingsrook.qbits</groupId>
@@ -68,14 +68,12 @@
      <tag>HEAD</tag>
   </scm>

-
-
   <dependencyManagement>
      <dependencies>
         <dependency>
            <groupId>com.kingsrook.qqq</groupId>
            <artifactId>qqq-bom-pom</artifactId>
-            <version>0.27.9</version>
+            <version>0.31.0-20251119.140604-23</version>
            <type>pom</type>
            <scope>import</scope>
         </dependency>
@@ -94,10 +92,6 @@
         <groupId>com.kingsrook.qqq</groupId>
         <artifactId>qqq-backend-core</artifactId>
      </dependency>
-      <dependency>
-         <groupId>com.kingsrook.qqq</groupId>
-         <artifactId>qqq-backend-module-rdbms</artifactId>
-      </dependency>

      <dependency>
         <groupId>org.junit.jupiter</groupId>
@@ -112,4 +106,11 @@
      </dependency>
   </dependencies>

+   <repositories>
+      <repository>
+         <id>sonatype-snapshots</id>
+         <url>https://central.sonatype.com/repository/maven-snapshots/</url>
+      </repository>
+   </repositories>
+
 </project>
@@ -22,16 +22,25 @@
 package com.kingsrook.qbits.standardprocesstrace;


+import com.kingsrook.qqq.backend.core.model.metadata.producers.MetaDataCustomizerInterface;
+import com.kingsrook.qqq.backend.core.model.metadata.qbits.QBitConfig;
+import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableMetaData;
+
+
 /*******************************************************************************
- ** ad-hoc Configuration data for this qbit.
- ** TODO - when qbit configs become formalized in qqq, adapt this qbit to that interface.
+ * Configuration data for this qbit.
+ *
 *******************************************************************************/
-public class StandardProcessTraceQBitConfig
+public class StandardProcessTraceQBitConfig implements QBitConfig
 {
+   private MetaDataCustomizerInterface<QTableMetaData> tableMetaDataCustomizer;
+
   private String userIdPossibleValueSourceName;
   private String userTableName;
   private String userIdReferenceFieldName;

+   private boolean includeBackendActivityStats = false;
+


   /*******************************************************************************
@@ -125,4 +134,82 @@ public class StandardProcessTraceQBitConfig
   }


+
+   /*******************************************************************************
+    * Getter for includeBackendActivityStats
+    * @see #withIncludeBackendActivityStats(boolean)
+    *******************************************************************************/
+   public boolean getIncludeBackendActivityStats()
+   {
+      return (this.includeBackendActivityStats);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for includeBackendActivityStats
+    * @see #withIncludeBackendActivityStats(boolean)
+    *******************************************************************************/
+   public void setIncludeBackendActivityStats(boolean includeBackendActivityStats)
+   {
+      this.includeBackendActivityStats = includeBackendActivityStats;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for includeBackendActivityStats
+    *
+    * @param includeBackendActivityStats
+    * indicate whether or not the ProcessTraceBackendActivityStats table should be
+    * included in the QInstance (and records should be built in that table under
+    * processTrace records).
+    * <p>Note that using this feature requires the QQQ QueryStatManager to be active
+    * in the application server.</p>
+    * @return this
+    *******************************************************************************/
+   public StandardProcessTraceQBitConfig withIncludeBackendActivityStats(boolean includeBackendActivityStats)
+   {
+      this.includeBackendActivityStats = includeBackendActivityStats;
+      return (this);
+   }
+
+
+
+   /*******************************************************************************
+    * Getter for tableMetaDataCustomizer
+    * @see #withTableMetaDataCustomizer(MetaDataCustomizerInterface)
+    *******************************************************************************/
+   public MetaDataCustomizerInterface<QTableMetaData> getTableMetaDataCustomizer()
+   {
+      return (this.tableMetaDataCustomizer);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for tableMetaDataCustomizer
+    * @see #withTableMetaDataCustomizer(MetaDataCustomizerInterface)
+    *******************************************************************************/
+   public void setTableMetaDataCustomizer(MetaDataCustomizerInterface<QTableMetaData> tableMetaDataCustomizer)
+   {
+      this.tableMetaDataCustomizer = tableMetaDataCustomizer;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for tableMetaDataCustomizer
+    *
+    * @param tableMetaDataCustomizer
+    * table meta data customizer to be applied to all tables produced by this qbit.
+    * @return this
+    *******************************************************************************/
+   public StandardProcessTraceQBitConfig withTableMetaDataCustomizer(MetaDataCustomizerInterface<QTableMetaData> tableMetaDataCustomizer)
+   {
+      this.tableMetaDataCustomizer = tableMetaDataCustomizer;
+      return (this);
+   }
+
+
 }
@@ -23,15 +23,15 @@ package com.kingsrook.qbits.standardprocesstrace;


 import com.kingsrook.qbits.standardprocesstrace.model.ProcessTrace;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceBackendActivityStats;
 import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceSummaryLine;
 import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceSummaryLineRecordInt;
 import com.kingsrook.qqq.backend.core.exceptions.QException;
-import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducerHelper;
-import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducerInterface;
 import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducerMultiOutput;
 import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
 import com.kingsrook.qqq.backend.core.model.metadata.layout.QAppSection;
-import com.kingsrook.qqq.backend.core.model.metadata.producers.MetaDataCustomizerInterface;
+import com.kingsrook.qqq.backend.core.model.metadata.qbits.QBitMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.qbits.QBitMetaDataProducer;
 import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableMetaData;
 import com.kingsrook.qqq.backend.core.utils.StringUtils;

@@ -39,10 +39,9 @@ import com.kingsrook.qqq.backend.core.utils.StringUtils;
 /*******************************************************************************
 **
 *******************************************************************************/
-public class StandardProcessTraceQBitProducer implements MetaDataProducerInterface<MetaDataProducerMultiOutput>
+public class StandardProcessTraceQBitProducer implements QBitMetaDataProducer<StandardProcessTraceQBitConfig>
 {
-   private StandardProcessTraceQBitConfig              standardProcessTraceQBitConfig;
-   private MetaDataCustomizerInterface<QTableMetaData> tableMetaDataCustomizer;
+   private StandardProcessTraceQBitConfig standardProcessTraceQBitConfig;



@@ -51,35 +50,71 @@ public class StandardProcessTraceQBitProducer implements MetaDataProducerInterfa
    ***************************************************************************/
   public static QAppSection getAppSection(QInstance qInstance)
   {
-      return (new QAppSection().withName("processTrace")
+      QBitMetaData qBitMetaData = qInstance.getQBits().get(new StandardProcessTraceQBitProducer().getQBitMetaData().getName());
+
+      QAppSection section = new QAppSection().withName("processTrace")
         .withTable(ProcessTrace.TABLE_NAME)
         .withTable(ProcessTraceSummaryLine.TABLE_NAME)
-         .withTable(ProcessTraceSummaryLineRecordInt.TABLE_NAME));
+         .withTable(ProcessTraceSummaryLineRecordInt.TABLE_NAME);
+
+      if(qBitMetaData != null && qBitMetaData.getConfig() instanceof StandardProcessTraceQBitConfig config)
+      {
+         if(config.getIncludeBackendActivityStats())
+         {
+            section.withTable(ProcessTraceBackendActivityStats.TABLE_NAME);
+         }
+      }
+
+      return (section);
   }



   /***************************************************************************
-    **
+    *
    ***************************************************************************/
   @Override
-   public MetaDataProducerMultiOutput produce(QInstance qInstance) throws QException
+   public StandardProcessTraceQBitConfig getQBitConfig()
   {
-      MetaDataProducerHelper.processAllMetaDataProducersInPackage(qInstance, ProcessTrace.class.getPackageName(), tableMetaDataCustomizer);
-      MetaDataProducerHelper.processAllMetaDataProducersInPackage(qInstance, getClass().getPackageName() + ".metadata", tableMetaDataCustomizer);
+      return (standardProcessTraceQBitConfig);
+   }

-      //////////////////////////////////////////////////////////////////////////////////////
-      // set the possible value source on the processTrace.userId field, if so configured //
-      //////////////////////////////////////////////////////////////////////////////////////
-      if(standardProcessTraceQBitConfig != null && StringUtils.hasContent(standardProcessTraceQBitConfig.getUserIdPossibleValueSourceName()))
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   @Override
+   public QBitMetaData getQBitMetaData()
+   {
+      QBitMetaData qBitMetaData = new QBitMetaData()
+         .withGroupId("com.kingsrook.qbits")
+         .withArtifactId("standard-process-trace")
+         .withVersion("0.1.3")
+         .withNamespace(getNamespace())
+         .withConfig(getQBitConfig());
+
+      return qBitMetaData;
+   }
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   @Override
+   public void postProduceActions(MetaDataProducerMultiOutput metaDataProducerMultiOutput, QInstance qInstance) throws QException
+   {
+      if(standardProcessTraceQBitConfig != null)
      {
-         qInstance.getTable(ProcessTrace.TABLE_NAME).getField("userId").setPossibleValueSourceName(standardProcessTraceQBitConfig.getUserIdPossibleValueSourceName());
+         //////////////////////////////////////////////////////////////////////////////////////
+         // set the possible value source on the processTrace.userId field, if so configured //
+         //////////////////////////////////////////////////////////////////////////////////////
+         if(StringUtils.hasContent(standardProcessTraceQBitConfig.getUserIdPossibleValueSourceName()))
+         {
+            metaDataProducerMultiOutput.get(QTableMetaData.class, ProcessTrace.TABLE_NAME).getField("userId").setPossibleValueSourceName(standardProcessTraceQBitConfig.getUserIdPossibleValueSourceName());
+         }
      }
-
-      ////////////////////////////////////////////////////////////////////////////////////////////////////
-      // we actually called MetaDataProducerHelper ourselves, so, don't have anything to return here... //
-      ////////////////////////////////////////////////////////////////////////////////////////////////////
-      return new MetaDataProducerMultiOutput();
   }


@@ -113,35 +148,4 @@ public class StandardProcessTraceQBitProducer implements MetaDataProducerInterfa
      return (this);
   }

-
-
-   /*******************************************************************************
-    ** Getter for tableMetaDataCustomizer
-    *******************************************************************************/
-   public MetaDataCustomizerInterface<QTableMetaData> getTableMetaDataCustomizer()
-   {
-      return (this.tableMetaDataCustomizer);
-   }
-
-
-
-   /*******************************************************************************
-    ** Setter for tableMetaDataCustomizer
-    *******************************************************************************/
-   public void setTableMetaDataCustomizer(MetaDataCustomizerInterface<QTableMetaData> tableMetaDataCustomizer)
-   {
-      this.tableMetaDataCustomizer = tableMetaDataCustomizer;
-   }
-
-
-
-   /*******************************************************************************
-    ** Fluent setter for tableMetaDataCustomizer
-    *******************************************************************************/
-   public StandardProcessTraceQBitProducer withTableMetaDataCustomizer(MetaDataCustomizerInterface<QTableMetaData> tableMetaDataCustomizer)
-   {
-      this.tableMetaDataCustomizer = tableMetaDataCustomizer;
-      return (this);
-   }
-
 }
@@ -0,0 +1,62 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.metadata;
+
+
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceBackendActivityStatsAction;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducer;
+import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
+import com.kingsrook.qqq.backend.core.model.metadata.possiblevalues.QPossibleValueSource;
+
+
+/*******************************************************************************
+ * Meta Data Producer for ProcessTraceBackendActivityStatsAction
+ * Note: not done via annotations, so it can be disabled via config
+ *******************************************************************************/
+public class ProcessTraceBackendActivityStatsActionMetaDataProducer extends MetaDataProducer<QPossibleValueSource>
+{
+   public static final String NAME = ProcessTraceBackendActivityStatsAction.NAME;
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   @Override
+   public boolean isEnabled()
+   {
+      return (new ProcessTraceBackendActivityStatsMetaDataProducer().isEnabled());
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Override
+   public QPossibleValueSource produce(QInstance qInstance) throws QException
+   {
+      return (QPossibleValueSource.newForEnum(NAME, ProcessTraceBackendActivityStatsAction.values()));
+   }
+
+}
@@ -0,0 +1,93 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.metadata;
+
+
+import java.util.List;
+import com.kingsrook.qbits.standardprocesstrace.StandardProcessTraceQBitConfig;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTrace;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceBackendActivityStats;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.instances.QInstanceEnricher;
+import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducer;
+import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
+import com.kingsrook.qqq.backend.core.model.metadata.layout.QIcon;
+import com.kingsrook.qqq.backend.core.model.metadata.qbits.QBitConfig;
+import com.kingsrook.qqq.backend.core.model.metadata.qbits.QBitProductionContext;
+import com.kingsrook.qqq.backend.core.model.metadata.tables.Capability;
+import com.kingsrook.qqq.backend.core.model.metadata.tables.ExposedJoin;
+import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.tables.SectionFactory;
+
+
+/*******************************************************************************
+ * Meta Data Producer for ProcessTraceBackendActivityStats
+ * Note: not done via annotations, so it can be disabled via config
+ *******************************************************************************/
+public class ProcessTraceBackendActivityStatsMetaDataProducer extends MetaDataProducer<QTableMetaData>
+{
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   @Override
+   public boolean isEnabled()
+   {
+      QBitConfig qBitConfig = QBitProductionContext.peekQBitConfig();
+      if(qBitConfig instanceof StandardProcessTraceQBitConfig config)
+      {
+         if(!config.getIncludeBackendActivityStats())
+         {
+            return (false);
+         }
+      }
+
+      return (true);
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Override
+   public QTableMetaData produce(QInstance qInstance) throws QException
+   {
+      QTableMetaData table = new QTableMetaData()
+         .withName(ProcessTraceBackendActivityStats.TABLE_NAME)
+         .withIcon(new QIcon().withName("query_stats"))
+         .withRecordLabelFormat("%s %s %s %s")
+         .withRecordLabelFields("processTraceId", "qqqBackendId", "qqqTableId", "actionName")
+         .withPrimaryKeyField("id")
+         .withFieldsFromEntity(ProcessTraceBackendActivityStats.class)
+         .withSection(SectionFactory.defaultT1("id", "processTraceId", "qqqBackendId", "qqqTableId", "actionName"))
+         .withSection(SectionFactory.defaultT2("callCount", "recordCount", "runtimeMillis"))
+         .withExposedJoin(new ExposedJoin().withLabel("Process Trace").withJoinPath(List.of(ProcessTraceJoinBackendActivityStatsMetaDataProducer.NAME)).withJoinTable(ProcessTrace.TABLE_NAME));
+
+      table.withoutCapabilities(Capability.allWriteCapabilities());
+
+      QInstanceEnricher.setInferredFieldBackendNames(table);
+
+      return (table);
+   }
+
+}
@@ -0,0 +1,71 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.metadata;
+
+
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTrace;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceBackendActivityStats;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducer;
+import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
+import com.kingsrook.qqq.backend.core.model.metadata.joins.JoinOn;
+import com.kingsrook.qqq.backend.core.model.metadata.joins.JoinType;
+import com.kingsrook.qqq.backend.core.model.metadata.joins.QJoinMetaData;
+
+
+/*******************************************************************************
+ * Meta Data Producer for ProcessTraceJoinBackendActivityStats
+ * Note: not done via annotations, so it can be disabled via config
+ *******************************************************************************/
+public class ProcessTraceJoinBackendActivityStatsMetaDataProducer extends MetaDataProducer<QJoinMetaData>
+{
+   public static final String NAME = "ProcessTraceJoinBackendActivityStats";
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   @Override
+   public boolean isEnabled()
+   {
+      return (new ProcessTraceBackendActivityStatsMetaDataProducer().isEnabled());
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Override
+   public QJoinMetaData produce(QInstance qInstance) throws QException
+   {
+      return (new QJoinMetaData()
+         .withName(NAME)
+         .withLeftTable(ProcessTrace.TABLE_NAME)
+         .withRightTable(ProcessTraceBackendActivityStats.TABLE_NAME)
+         .withType(JoinType.ONE_TO_MANY)
+         .withJoinOn(new JoinOn("id", "processTraceId"))
+      );
+   }
+
+}
@@ -0,0 +1,72 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.metadata;
+
+
+import com.kingsrook.qqq.backend.core.actions.dashboard.widgets.ChildRecordListRenderer;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducer;
+import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducerMultiOutput;
+import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
+import com.kingsrook.qqq.backend.core.model.metadata.dashboard.QWidgetMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.joins.QJoinMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.qbits.QBitProductionContext;
+
+
+/*******************************************************************************
+ * Meta Data Producer for ProcessTraceJoinBackendActivityStats
+ * Note: not done via annotations, so it can be disabled via config
+ *******************************************************************************/
+public class ProcessTraceJoinBackendActivityStatsWidgetMetaDataProducer extends MetaDataProducer<QWidgetMetaData>
+{
+   public static final String NAME = "ProcessTraceJoinBackendActivityStatsWidget";
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   @Override
+   public boolean isEnabled()
+   {
+      return (new ProcessTraceBackendActivityStatsMetaDataProducer().isEnabled());
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Override
+   public QWidgetMetaData produce(QInstance qInstance) throws QException
+   {
+      MetaDataProducerMultiOutput metaDataProducerMultiOutput = QBitProductionContext.peekMetaDataProducerMultiOutput();
+      QJoinMetaData               joinMetaData                = metaDataProducerMultiOutput.get(QJoinMetaData.class, ProcessTraceJoinBackendActivityStatsMetaDataProducer.NAME);
+
+      return ChildRecordListRenderer.widgetMetaDataBuilder(joinMetaData)
+         .withName(NAME)
+         .withLabel("Backend Activity Stats")
+         .withMaxRows(250)
+         .getWidgetMetaData();
+   }
+
+}
@@ -24,6 +24,9 @@ package com.kingsrook.qbits.standardprocesstrace.model;

 import java.time.Instant;
 import java.util.List;
+import com.kingsrook.qbits.standardprocesstrace.metadata.ProcessTraceBackendActivityStatsMetaDataProducer;
+import com.kingsrook.qbits.standardprocesstrace.metadata.ProcessTraceJoinBackendActivityStatsMetaDataProducer;
+import com.kingsrook.qbits.standardprocesstrace.metadata.ProcessTraceJoinBackendActivityStatsWidgetMetaDataProducer;
 import com.kingsrook.qbits.standardprocesstrace.metadata.ProcessTraceJoinKeyRecordQQQTableMetaDataProducer;
 import com.kingsrook.qbits.standardprocesstrace.metadata.ProcessTraceJoinQQQProcessMetaDataProducer;
 import com.kingsrook.qbits.standardprocesstrace.utils.ProcessTraceTableCustomizer;
@@ -66,7 +69,7 @@ import com.kingsrook.qqq.backend.core.model.tables.QQQTable;
         childTableEntityClass = ProcessTraceSummaryLine.class,
         joinFieldName = "processTraceSummaryLineId",
         childJoin = @ChildJoin(enabled = true),
-         childRecordListWidget = @ChildRecordListWidget(label = "Summary Lines", enabled = true, maxRows = 250))
+         childRecordListWidget = @ChildRecordListWidget(label = "Summary Lines", enabled = true, maxRows = 250)),
   }
 )
 public class ProcessTrace extends QRecordEntity
@@ -87,7 +90,7 @@ public class ProcessTrace extends QRecordEntity
      @Override
      public QTableMetaData customizeMetaData(QInstance qInstance, QTableMetaData table) throws QException
      {
-         String childJoinName = QJoinMetaData.makeInferredJoinName(TABLE_NAME, ProcessTraceSummaryLine.TABLE_NAME);
+         String summaryLinesChildJoinName = QJoinMetaData.makeInferredJoinName(TABLE_NAME, ProcessTraceSummaryLine.TABLE_NAME);

         table
            .withUniqueKey(new UniqueKey("processUUID"))
@@ -96,14 +99,25 @@ public class ProcessTrace extends QRecordEntity
            .withRecordLabelFields("qqqProcessId", "processUUID")
            .withSection(new QFieldSection("identity", new QIcon().withName("badge"), Tier.T1, List.of("id", "qqqProcessId", "processUUID", "userId")))
            .withSection(new QFieldSection("data", new QIcon().withName("text_snippet"), Tier.T2, List.of("startTimestamp", "endTimestamp", "runtimeMillis", "keyRecordQqqTableId", "keyRecordId", "recordCount", "exceptionMessage")))
-            .withSection(new QFieldSection("summaryLines", new QIcon().withName("horizontal_rule"), Tier.T2).withWidgetName(childJoinName))
-            .withExposedJoin(new ExposedJoin().withLabel("Summary Lines").withJoinPath(List.of(childJoinName)).withJoinTable(ProcessTraceSummaryLine.TABLE_NAME))
+            .withSection(new QFieldSection("summaryLines", new QIcon().withName("horizontal_rule"), Tier.T2).withWidgetName(summaryLinesChildJoinName))
+            .withExposedJoin(new ExposedJoin().withLabel("Summary Lines").withJoinPath(List.of(summaryLinesChildJoinName)).withJoinTable(ProcessTraceSummaryLine.TABLE_NAME))
            .withExposedJoin(new ExposedJoin().withLabel("Key Record Table").withJoinPath(List.of(ProcessTraceJoinKeyRecordQQQTableMetaDataProducer.NAME)).withJoinTable(QQQTable.TABLE_NAME))
            .withExposedJoin(new ExposedJoin().withLabel("Process").withJoinPath(List.of(ProcessTraceJoinQQQProcessMetaDataProducer.NAME)).withJoinTable(QQQProcess.TABLE_NAME));

         table.withCustomizer(TableCustomizers.POST_QUERY_RECORD, new QCodeReference(ProcessTraceTableCustomizer.class));
         table.getField("keyRecordId").withFieldAdornment(new FieldAdornment(AdornmentType.LINK).withValue(AdornmentType.LinkValues.TO_RECORD_FROM_TABLE_DYNAMIC, true));

+         if(new ProcessTraceBackendActivityStatsMetaDataProducer().isEnabled())
+         {
+            table.getSections().add(new QFieldSection("backendActivityStats", new QIcon().withName("query_stats"), Tier.T2)
+               .withWidgetName(ProcessTraceJoinBackendActivityStatsWidgetMetaDataProducer.NAME));
+
+            table.withExposedJoin(new ExposedJoin()
+               .withLabel("Backend Activity Stats")
+               .withJoinPath(List.of(ProcessTraceJoinBackendActivityStatsMetaDataProducer.NAME))
+               .withJoinTable(ProcessTraceBackendActivityStats.TABLE_NAME));
+         }
+
         return (table);
      }
   }
@@ -0,0 +1,349 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.model;
+
+
+import com.kingsrook.qqq.backend.core.model.backends.QQQBackend;
+import com.kingsrook.qqq.backend.core.model.data.QField;
+import com.kingsrook.qqq.backend.core.model.data.QRecord;
+import com.kingsrook.qqq.backend.core.model.data.QRecordEntity;
+import com.kingsrook.qqq.backend.core.model.metadata.fields.DisplayFormat;
+import com.kingsrook.qqq.backend.core.model.tables.QQQTable;
+
+
+/*******************************************************************************
+ * QRecord Entity for ProcessTraceBackendActivityStats table
+ * Note: not using meta-data producing annotations, so it can be disabled via config
+ *******************************************************************************/
+public class ProcessTraceBackendActivityStats extends QRecordEntity
+{
+   public static final String TABLE_NAME = "processTraceBackendActivityStats";
+
+   @QField(isEditable = false, isPrimaryKey = true)
+   private Long id;
+
+   @QField(possibleValueSourceName = ProcessTrace.TABLE_NAME)
+   private Long processTraceId;
+
+   @QField(label = "Backend", possibleValueSourceName = QQQBackend.TABLE_NAME)
+   private Integer qqqBackendId;
+
+   @QField(label = "Table", possibleValueSourceName = QQQTable.TABLE_NAME)
+   private Integer qqqTableId;
+
+   @QField(label = "Action", possibleValueSourceName = ProcessTraceBackendActivityStatsAction.NAME)
+   private String actionName;
+
+   @QField(displayFormat = DisplayFormat.COMMAS)
+   private Integer callCount;
+
+   @QField(displayFormat = DisplayFormat.COMMAS)
+   private Integer recordCount;
+
+   @QField(displayFormat = DisplayFormat.COMMAS)
+   private Integer runtimeMillis;
+
+
+
+   /*******************************************************************************
+    ** Default constructor
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats()
+   {
+   }
+
+
+
+   /*******************************************************************************
+    ** Constructor that takes a QRecord
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats(QRecord record)
+   {
+      populateFromQRecord(record);
+   }
+
+
+
+   /*******************************************************************************
+    * Getter for id
+    * @see #withId(Long)
+    *******************************************************************************/
+   public Long getId()
+   {
+      return (this.id);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for id
+    * @see #withId(Long)
+    *******************************************************************************/
+   public void setId(Long id)
+   {
+      this.id = id;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for id
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats withId(Long id)
+   {
+      this.id = id;
+      return (this);
+   }
+
+
+
+   /*******************************************************************************
+    * Getter for processTraceId
+    * @see #withProcessTraceId(Long)
+    *******************************************************************************/
+   public Long getProcessTraceId()
+   {
+      return (this.processTraceId);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for processTraceId
+    * @see #withProcessTraceId(Long)
+    *******************************************************************************/
+   public void setProcessTraceId(Long processTraceId)
+   {
+      this.processTraceId = processTraceId;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for processTraceId
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats withProcessTraceId(Long processTraceId)
+   {
+      this.processTraceId = processTraceId;
+      return (this);
+   }
+
+
+
+
+   /*******************************************************************************
+    * Getter for actionName
+    * @see #withActionName(String)
+    *******************************************************************************/
+   public String getActionName()
+   {
+      return (this.actionName);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for actionName
+    * @see #withActionName(String)
+    *******************************************************************************/
+   public void setActionName(String actionName)
+   {
+      this.actionName = actionName;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for actionName
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats withActionName(String actionName)
+   {
+      this.actionName = actionName;
+      return (this);
+   }
+
+
+
+   /*******************************************************************************
+    * Getter for callCount
+    * @see #withCallCount(Integer)
+    *******************************************************************************/
+   public Integer getCallCount()
+   {
+      return (this.callCount);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for callCount
+    * @see #withCallCount(Integer)
+    *******************************************************************************/
+   public void setCallCount(Integer callCount)
+   {
+      this.callCount = callCount;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for callCount
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats withCallCount(Integer callCount)
+   {
+      this.callCount = callCount;
+      return (this);
+   }
+
+
+
+   /*******************************************************************************
+    * Getter for recordCount
+    * @see #withRecordCount(Integer)
+    *******************************************************************************/
+   public Integer getRecordCount()
+   {
+      return (this.recordCount);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for recordCount
+    * @see #withRecordCount(Integer)
+    *******************************************************************************/
+   public void setRecordCount(Integer recordCount)
+   {
+      this.recordCount = recordCount;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for recordCount
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats withRecordCount(Integer recordCount)
+   {
+      this.recordCount = recordCount;
+      return (this);
+   }
+
+
+
+   /*******************************************************************************
+    * Getter for runtimeMillis
+    * @see #withRuntimeMillis(Integer)
+    *******************************************************************************/
+   public Integer getRuntimeMillis()
+   {
+      return (this.runtimeMillis);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for runtimeMillis
+    * @see #withRuntimeMillis(Integer)
+    *******************************************************************************/
+   public void setRuntimeMillis(Integer runtimeMillis)
+   {
+      this.runtimeMillis = runtimeMillis;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for runtimeMillis
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats withRuntimeMillis(Integer runtimeMillis)
+   {
+      this.runtimeMillis = runtimeMillis;
+      return (this);
+   }
+
+
+   /*******************************************************************************
+    * Getter for qqqBackendId
+    * @see #withQqqBackendId(Integer)
+    *******************************************************************************/
+   public Integer getQqqBackendId()
+   {
+      return (this.qqqBackendId);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for qqqBackendId
+    * @see #withQqqBackendId(Integer)
+    *******************************************************************************/
+   public void setQqqBackendId(Integer qqqBackendId)
+   {
+      this.qqqBackendId = qqqBackendId;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for qqqBackendId
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats withQqqBackendId(Integer qqqBackendId)
+   {
+      this.qqqBackendId = qqqBackendId;
+      return (this);
+   }
+
+
+
+   /*******************************************************************************
+    * Getter for qqqTableId
+    * @see #withQqqTableId(Integer)
+    *******************************************************************************/
+   public Integer getQqqTableId()
+   {
+      return (this.qqqTableId);
+   }
+
+
+
+   /*******************************************************************************
+    * Setter for qqqTableId
+    * @see #withQqqTableId(Integer)
+    *******************************************************************************/
+   public void setQqqTableId(Integer qqqTableId)
+   {
+      this.qqqTableId = qqqTableId;
+   }
+
+
+
+   /*******************************************************************************
+    * Fluent setter for qqqTableId
+    *******************************************************************************/
+   public ProcessTraceBackendActivityStats withQqqTableId(Integer qqqTableId)
+   {
+      this.qqqTableId = qqqTableId;
+      return (this);
+   }
+
+
+}
@@ -0,0 +1,132 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.model;
+
+
+import java.util.Objects;
+import com.kingsrook.qqq.backend.core.actions.tables.CountAction;
+import com.kingsrook.qqq.backend.core.actions.tables.DeleteAction;
+import com.kingsrook.qqq.backend.core.actions.tables.GetAction;
+import com.kingsrook.qqq.backend.core.actions.tables.InsertAction;
+import com.kingsrook.qqq.backend.core.actions.tables.QueryAction;
+import com.kingsrook.qqq.backend.core.actions.tables.UpdateAction;
+import com.kingsrook.qqq.backend.core.model.actions.audits.AuditDetailAccumulator;
+import com.kingsrook.qqq.backend.core.model.metadata.possiblevalues.PossibleValueEnum;
+
+
+/*******************************************************************************
+ ** ProcessTraceBackendActivityStatsAction - possible value enum
+ *******************************************************************************/
+public enum ProcessTraceBackendActivityStatsAction implements PossibleValueEnum<String>
+{
+   INSERT(InsertAction.class.getSimpleName(), "Insert"),
+   UPDATE(UpdateAction.class.getSimpleName(), "Update"),
+   DELETE(DeleteAction.class.getSimpleName(), "Delete"),
+   QUERY(QueryAction.class.getSimpleName(), "Query"),
+   GET(GetAction.class.getSimpleName(), "Get"),
+   COUNT(CountAction.class.getSimpleName(), "Count"),
+   AGGREGATE(AuditDetailAccumulator.class.getSimpleName(), "Aggregate");
+
+   private final String id;
+   private final String label;
+
+   public static final String NAME = "ProcessTraceBackendActivityStatsAction";
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   ProcessTraceBackendActivityStatsAction(String id, String label)
+   {
+      this.id = id;
+      this.label = label;
+   }
+
+
+
+   /*******************************************************************************
+    ** Get instance by id
+    **
+    *******************************************************************************/
+   public static ProcessTraceBackendActivityStatsAction getById(String id)
+   {
+      if(id == null)
+      {
+         return (null);
+      }
+
+      for(ProcessTraceBackendActivityStatsAction value : ProcessTraceBackendActivityStatsAction.values())
+      {
+         if(Objects.equals(value.id, id))
+         {
+            return (value);
+         }
+      }
+
+      return (null);
+   }
+
+
+
+   /*******************************************************************************
+    ** Getter for id
+    **
+    *******************************************************************************/
+   public String getId()
+   {
+      return id;
+   }
+
+
+
+   /*******************************************************************************
+    ** Getter for label
+    **
+    *******************************************************************************/
+   public String getLabel()
+   {
+      return label;
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Override
+   public String getPossibleValueId()
+   {
+      return (getId());
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Override
+   public String getPossibleValueLabel()
+   {
+      return (getLabel());
+   }
+}
@@ -0,0 +1,298 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.utils;
+
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceBackendActivityStats;
+import com.kingsrook.qqq.backend.core.context.QContext;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.logging.QLogger;
+import com.kingsrook.qqq.backend.core.model.backends.QQQBackendTableManager;
+import com.kingsrook.qqq.backend.core.model.tables.QQQTableTableManager;
+import com.kingsrook.qqq.backend.core.utils.CollectionUtils;
+import com.kingsrook.qqq.backend.core.utils.PrefixedDefaultThreadFactory;
+import com.kingsrook.qqq.backend.core.utils.StringUtils;
+import static com.kingsrook.qqq.backend.core.logging.LogUtils.logPair;
+
+
+/*******************************************************************************
+ * Singleton that collects QueryStats, associated with a processTraceId.
+ *
+ * <p>Runs a scheduled executor thread to clean itself up - e.g., in case processes
+ * leak (e.g., started in a frontend but exited before final step).  Configured by
+ * {@link #setCleanupIntervalMillis(long)} and {@link #setCleanupMaxAge(long)}</p>
+ *******************************************************************************/
+public class ProcessTraceBackendActivityStatsManager
+{
+   private static final QLogger LOG = QLogger.getLogger(ProcessTraceBackendActivityStatsManager.class);
+
+   private static ProcessTraceBackendActivityStatsManager processTraceBackendActivityStatsManager = null;
+
+   private Map<Long, ProcessStats> stats = Collections.synchronizedMap(new HashMap<>());
+
+   private long CLEANUP_INTERVAL_MILLIS = 60 * 60 * 1000;
+   private long CLEANUP_MAX_AGE         = 12 * 60 * 60 * 1000;
+
+   private ScheduledExecutorService scheduledExecutorService;
+
+
+
+   /***************************************************************************
+    * container for all data collected for a particular process trace.
+    *
+    * stores start milliseconds (for cleanup), plus map of keys to stats.
+    ***************************************************************************/
+   private record ProcessStats(long startMillis, Map<Key, Stats> stats)
+   {
+      /*******************************************************************************
+       ** Constructor that uses default values
+       **
+       *******************************************************************************/
+      public ProcessStats()
+      {
+         this(System.currentTimeMillis(), new LinkedHashMap<>());
+      }
+   }
+
+
+
+   /***************************************************************************
+    * what backend/table/action a set of stats are associated with.
+    *
+    * e.g., memoryBackend, personTable, insertAction
+    ***************************************************************************/
+   public record Key(String backendName, String tableName, String actionName) implements Serializable
+   {
+   }
+
+
+
+   /***************************************************************************
+    * the stats collected for individual keys.
+    ***************************************************************************/
+   private record Stats(Integer calls, Integer records, Integer millis)
+   {
+   }
+
+
+
+   /*******************************************************************************
+    ** Singleton constructor
+    *******************************************************************************/
+   private ProcessTraceBackendActivityStatsManager()
+   {
+      scheduleCleanupJob();
+   }
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   private void scheduleCleanupJob()
+   {
+      scheduledExecutorService = Executors.newSingleThreadScheduledExecutor(new PrefixedDefaultThreadFactory("ProcessTraceBackendActivityStatsManager-cleanup"));
+      scheduledExecutorService.scheduleAtFixedRate(this::cleanup, CLEANUP_INTERVAL_MILLIS, CLEANUP_INTERVAL_MILLIS, TimeUnit.MILLISECONDS);
+   }
+
+
+
+   /*******************************************************************************
+    ** Singleton accessor
+    *******************************************************************************/
+   public static ProcessTraceBackendActivityStatsManager getInstance()
+   {
+      if(processTraceBackendActivityStatsManager == null)
+      {
+         processTraceBackendActivityStatsManager = new ProcessTraceBackendActivityStatsManager();
+      }
+      return (processTraceBackendActivityStatsManager);
+   }
+
+
+
+   /***************************************************************************
+    * shutdown the scheduled job.  also clear stats.
+    ***************************************************************************/
+   public void shutdown()
+   {
+      scheduledExecutorService.shutdown();
+      stats.clear();
+   }
+
+
+
+   /***************************************************************************
+    * initialize storage for stats for a specific process trace id
+    ***************************************************************************/
+   public void initProcess(Long processTraceId)
+   {
+      stats.put(processTraceId, new ProcessStats());
+   }
+
+
+
+   /***************************************************************************
+    * clean up stat entries for processes that were originally created before
+    * CLEANUP_MAX_AGE (per {@link #setCleanupMaxAge(long)} milliseconds ago.
+    ***************************************************************************/
+   private void cleanup()
+   {
+      long limitStartMillis = System.currentTimeMillis() - CLEANUP_MAX_AGE;
+      LOG.info("Starting cleanup of ProcessTraceBackendActivityStatsManager", logPair("size", stats.size()));
+      stats.entrySet().removeIf(entry -> entry.getValue().startMillis < limitStartMillis);
+      LOG.info("Finished cleanup of ProcessTraceBackendActivityStatsManager", logPair("size", stats.size()));
+   }
+
+
+
+   /***************************************************************************
+    * when storing a processTrace (e.g., after the process has finished running),
+    * convert the stats stored in this object to a list of {@link ProcessTraceBackendActivityStats}
+    * entities.  Also remove the stats from this object's internal storage.
+    ***************************************************************************/
+   public List<ProcessTraceBackendActivityStats> getAndRemoveStats(Long processTraceId) throws QException
+   {
+      List<ProcessTraceBackendActivityStats> rs = new ArrayList<>();
+
+      ProcessStats processStats = stats.remove(processTraceId);
+      if(processStats != null)
+      {
+         for(Map.Entry<Key, Stats> entry : CollectionUtils.nonNullMap(processStats.stats()).entrySet())
+         {
+            rs.add(new ProcessTraceBackendActivityStats()
+               .withProcessTraceId(processTraceId)
+               .withQqqBackendId(getBackendId(entry.getKey().backendName()))
+               .withQqqTableId(getTableId(entry.getKey().tableName()))
+               .withActionName(entry.getKey().actionName())
+               .withCallCount(entry.getValue().calls())
+               .withRecordCount(entry.getValue().records())
+               .withRuntimeMillis(entry.getValue().millis())
+            );
+         }
+      }
+
+      return (rs);
+   }
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   private Integer getBackendId(String backendName)
+   {
+      if(!StringUtils.hasContent(backendName))
+      {
+         return (null);
+      }
+
+      try
+      {
+         return QQQBackendTableManager.getQQQBackendId(QContext.getQInstance(), backendName);
+      }
+      catch(Exception e)
+      {
+         return (null);
+      }
+   }
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   private Integer getTableId(String tableName)
+   {
+      if(!StringUtils.hasContent(tableName))
+      {
+         return (null);
+      }
+
+      try
+      {
+         return QQQTableTableManager.getQQQTableId(QContext.getQInstance(), tableName);
+      }
+      catch(Exception e)
+      {
+         return (null);
+      }
+   }
+
+
+
+   /***************************************************************************
+    * increment the stat values for a given process.
+    *
+    * @param key the backend, table, and action
+    * @param addCalls the number of calls to add (typically 1 at a time?)
+    * @param addRecords the number of records to add
+    * @param addMillis the number of milliseconds of runtime to add
+    ***************************************************************************/
+   public void add(Long processTraceId, Key key, Integer addCalls, Integer addRecords, Integer addMillis)
+   {
+      ProcessStats    processStats     = stats.computeIfAbsent(processTraceId, k -> new ProcessStats());
+      Map<Key, Stats> countsForProcess = processStats.stats();
+
+      if(countsForProcess != null)
+      {
+         Stats statsForKey = countsForProcess.computeIfAbsent(key, (k) -> new Stats(0, 0, 0));
+         countsForProcess.put(key, new Stats(statsForKey.calls + addCalls, statsForKey.records + addRecords, statsForKey.millis + addMillis));
+      }
+   }
+
+
+
+   /***************************************************************************
+    * sets the cleanup job's scheduled interval.  Also reschedules the job.
+    *
+    * @param cleanupIntervalMillis milliseconds between runs of the cleanup job
+    ***************************************************************************/
+   public void setCleanupIntervalMillis(long cleanupIntervalMillis)
+   {
+      CLEANUP_INTERVAL_MILLIS = cleanupIntervalMillis;
+      scheduledExecutorService.shutdown();
+      scheduleCleanupJob();
+   }
+
+
+
+   /***************************************************************************
+    * @param cleanupMaxAge max age (in millis) that a process is allowed to be
+    * before it gets cleaned up when a cleanup job runs.
+    ***************************************************************************/
+   public void setCleanupMaxAge(long cleanupMaxAge)
+   {
+      CLEANUP_MAX_AGE = cleanupMaxAge;
+   }
+
+}
@@ -0,0 +1,67 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.utils;
+
+
+import com.kingsrook.qqq.backend.core.actions.tables.helpers.QueryStatConsumerInterface;
+import com.kingsrook.qqq.backend.core.context.QContext;
+import com.kingsrook.qqq.backend.core.logging.QLogger;
+import com.kingsrook.qqq.backend.core.model.querystats.QueryStat;
+
+
+/*******************************************************************************
+ * Standard Process Trace's implementation of a QueryStat consumer.
+ *
+ * <p>That is, to accumulate them in the {@link ProcessTraceBackendActivityStatsManager},
+ * associated with the processTraceId in the user's session, so they can be stored
+ * when the process trace is stored.</p>
+ *******************************************************************************/
+public class StandardProcessTraceQueryStatConsumer implements QueryStatConsumerInterface
+{
+   private static final QLogger LOG = QLogger.getLogger(StandardProcessTraceQueryStatConsumer.class);
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   @Override
+   public void accept(QueryStat queryStat)
+   {
+      try
+      {
+         String processTraceId = QContext.getQSession().getValue(StandardProcessTracer.PROCESS_TRACE_ID_SESSION_KEY);
+         if(processTraceId == null)
+         {
+            return;
+         }
+
+         String backendName = QContext.getQInstance().getBackendForTable(queryStat.getTableName()).getName();
+         String backendAction = queryStat.getBackendAction();
+
+         ProcessTraceBackendActivityStatsManager.Key key = new ProcessTraceBackendActivityStatsManager.Key(backendName, queryStat.getTableName(), backendAction);
+         ProcessTraceBackendActivityStatsManager.getInstance().add(Long.valueOf(processTraceId), key, 1, queryStat.getRecordCount(), queryStat.getFirstResultMillis());
+      }
+      catch(Exception e)
+      {
+         LOG.warn("Error accepting query stats for process trace", e);
+      }
+   }
+}
@@ -30,6 +30,7 @@ import java.util.List;
 import java.util.Map;
 import com.kingsrook.qbits.standardprocesstrace.StandardProcessTraceQBitConfig;
 import com.kingsrook.qbits.standardprocesstrace.model.ProcessTrace;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceBackendActivityStats;
 import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceSummaryLine;
 import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceSummaryLineRecordInt;
 import com.kingsrook.qqq.backend.core.actions.tables.GetAction;
@@ -75,6 +76,8 @@ public class StandardProcessTracer implements ProcessTracerInterface

   private static StandardProcessTraceQBitConfig standardProcessTraceQBitConfig;

+   public static final String PROCESS_TRACE_ID_SESSION_KEY = StandardProcessTracer.class.getName() + ".processTraceId";
+
   private Instant startTime;
   private Long    processTraceId;

@@ -98,6 +101,17 @@ public class StandardProcessTracer implements ProcessTracerInterface
            .withProcessUUID(runProcessInput.getProcessUUID())));

         processTraceId = insertOutput.getRecords().get(0).getValueLong("id");
+
+         ////////////////////////////////////////////////////////////////////////////////////
+         // store the processTraceId in the session.  this will be used by the             //
+         // ProcessTraceQueryStatConsumer to associated QueryStats with this process trace //
+         ////////////////////////////////////////////////////////////////////////////////////
+         if(QContext.getQSession() != null)
+         {
+            QContext.getQSession().setValue(PROCESS_TRACE_ID_SESSION_KEY, String.valueOf(processTraceId));
+         }
+
+         ProcessTraceBackendActivityStatsManager.getInstance().initProcess(processTraceId);
      }
      catch(QException e)
      {
@@ -113,9 +127,29 @@ public class StandardProcessTracer implements ProcessTracerInterface
   @Override
   public void handleProcessResume(RunProcessInput runProcessInput)
   {
-      /////////////////////////////////
-      // noop in this implementation //
-      /////////////////////////////////
+      try
+      {
+         //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+         // if a user is resuming a process, e.g., from a frontend, then we want to put that processTraceId in their session //
+         //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+         if(processTraceId == null)
+         {
+            QRecord processTrace = GetAction.execute(ProcessTrace.TABLE_NAME, Map.of("processUUID", runProcessInput.getProcessUUID()));
+            if(processTrace != null)
+            {
+               processTraceId = processTrace.getValueLong("id");
+            }
+         }
+
+         if(processTraceId != null && QContext.getQSession() != null)
+         {
+            QContext.getQSession().setValue(PROCESS_TRACE_ID_SESSION_KEY, String.valueOf(processTraceId));
+         }
+      }
+      catch(Exception e)
+      {
+         LOG.warn("Error resuming process trace", e, logPair("processUUID", () -> runProcessInput.getProcessUUID()));
+      }
   }


@@ -328,12 +362,28 @@ public class StandardProcessTracer implements ProcessTracerInterface

               new InsertAction().execute(new InsertInput(ProcessTraceSummaryLine.TABLE_NAME).withRecordEntities(summaryLines));
            }
+
+            //////////////////////////////////////////
+            // build and store backend stat records //
+            //////////////////////////////////////////
+            if(QContext.getQInstance().getTable(ProcessTraceBackendActivityStats.TABLE_NAME) != null)
+            {
+               List<ProcessTraceBackendActivityStats> stats = ProcessTraceBackendActivityStatsManager.getInstance().getAndRemoveStats(processTraceId);
+               new InsertAction().execute(new InsertInput(ProcessTraceBackendActivityStats.TABLE_NAME).withRecordEntities(stats));
+            }
         }
      }
      catch(Exception e)
      {
         LOG.warn("Error completing store of processTrace records.", e);
      }
+      finally
+      {
+         if(QContext.getQSession() != null)
+         {
+            QContext.getQSession().removeValue(PROCESS_TRACE_ID_SESSION_KEY);
+         }
+      }
   }


@@ -0,0 +1,86 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace;
+
+
+import java.util.List;
+import com.kingsrook.qbits.standardprocesstrace.utils.StandardProcessTraceQueryStatConsumer;
+import com.kingsrook.qqq.backend.core.actions.tables.helpers.QueryStatManager;
+import com.kingsrook.qqq.backend.core.context.QContext;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.instances.QInstanceValidator;
+import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
+import com.kingsrook.qqq.backend.core.model.session.QSystemUserSession;
+import com.kingsrook.qqq.backend.core.modules.backend.implementations.memory.MemoryRecordStore;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+
+
+/*******************************************************************************
+ * base class for tests for this QBit.
+ *******************************************************************************/
+public class BaseTest
+{
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @BeforeEach
+   void baseBeforeEach() throws Exception
+   {
+      QInstance qInstance = defineQInstance();
+      new QInstanceValidator().validate(qInstance);
+      QContext.init(qInstance, new QSystemUserSession());
+
+      QueryStatManager queryStatManager = QueryStatManager.getInstance();
+      queryStatManager.start(qInstance, () -> new QSystemUserSession());
+      queryStatManager.setQueryStatConsumers(List.of(new StandardProcessTraceQueryStatConsumer()));
+
+      MemoryRecordStore.fullReset();
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @AfterEach
+   void afterEach()
+   {
+      MemoryRecordStore.fullReset();
+
+      QueryStatManager.getInstance().stop();
+   }
+
+
+
+   /***************************************************************************
+    **
+    ***************************************************************************/
+   private QInstance defineQInstance() throws QException
+   {
+      return new StandardProcessTraceTestApplication().defineQInstance();
+   }
+
+
+
+}
@@ -0,0 +1,234 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace;
+
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import com.kingsrook.qbits.standardprocesstrace.utils.StandardProcessTracer;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.instances.AbstractQQQApplication;
+import com.kingsrook.qqq.backend.core.model.actions.processes.ProcessSummaryLine;
+import com.kingsrook.qqq.backend.core.model.actions.processes.ProcessSummaryLineInterface;
+import com.kingsrook.qqq.backend.core.model.actions.processes.RunBackendStepInput;
+import com.kingsrook.qqq.backend.core.model.actions.processes.RunBackendStepOutput;
+import com.kingsrook.qqq.backend.core.model.actions.processes.Status;
+import com.kingsrook.qqq.backend.core.model.backends.QQQBackendsMetaDataProvider;
+import com.kingsrook.qqq.backend.core.model.data.QRecord;
+import com.kingsrook.qqq.backend.core.model.metadata.MetaDataProducerMultiOutput;
+import com.kingsrook.qqq.backend.core.model.metadata.QAuthenticationType;
+import com.kingsrook.qqq.backend.core.model.metadata.QBackendMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
+import com.kingsrook.qqq.backend.core.model.metadata.audits.AuditLevel;
+import com.kingsrook.qqq.backend.core.model.metadata.audits.QAuditRules;
+import com.kingsrook.qqq.backend.core.model.metadata.authentication.QAuthenticationMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.code.QCodeReference;
+import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldType;
+import com.kingsrook.qqq.backend.core.model.metadata.layout.QAppMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.layout.QAppSection;
+import com.kingsrook.qqq.backend.core.model.metadata.layout.QIcon;
+import com.kingsrook.qqq.backend.core.model.metadata.tables.Capability;
+import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableMetaData;
+import com.kingsrook.qqq.backend.core.model.processes.QQQProcessesMetaDataProvider;
+import com.kingsrook.qqq.backend.core.model.tables.QQQTablesMetaDataProvider;
+import com.kingsrook.qqq.backend.core.modules.backend.implementations.memory.MemoryBackendModule;
+import com.kingsrook.qqq.backend.core.processes.implementations.etl.streamedwithfrontend.AbstractTransformStep;
+import com.kingsrook.qqq.backend.core.processes.implementations.etl.streamedwithfrontend.ExtractViaQueryStep;
+import com.kingsrook.qqq.backend.core.processes.implementations.etl.streamedwithfrontend.LoadViaInsertStep;
+import com.kingsrook.qqq.backend.core.processes.implementations.etl.streamedwithfrontend.StreamedETLWithFrontendProcess;
+
+
+/*******************************************************************************
+ * test application (e.g., QInstance) for this QBit's tests.
+ *******************************************************************************/
+public class StandardProcessTraceTestApplication extends AbstractQQQApplication
+{
+   public static final String MEMORY_BACKEND_NAME = "memory";
+
+   public static final String TABLE_NAME_PERSON = "person";
+   public static final String TABLE_NAME_ORDER  = "order";
+
+   public static final String PROCESS_NAME_PLACE_ORDERS = "placeOrders";
+
+
+
+   /***************************************************************************
+    **
+    ***************************************************************************/
+   @Override
+   public QInstance defineQInstance() throws QException
+   {
+      QInstance qInstance = new QInstance();
+
+      qInstance.setAuthentication(new QAuthenticationMetaData().withType(QAuthenticationType.FULLY_ANONYMOUS));
+
+      qInstance.addBackend(new QBackendMetaData()
+         .withName(MEMORY_BACKEND_NAME)
+         .withBackendType(MemoryBackendModule.class));
+
+      //////////////////////////////
+      // add tables table and PVS //
+      //////////////////////////////
+      new QQQTablesMetaDataProvider().defineAll(qInstance, MEMORY_BACKEND_NAME, MEMORY_BACKEND_NAME, null);
+      new QQQProcessesMetaDataProvider().defineAll(qInstance, MEMORY_BACKEND_NAME, MEMORY_BACKEND_NAME, null);
+      new QQQBackendsMetaDataProvider().defineAll(qInstance, MEMORY_BACKEND_NAME, MEMORY_BACKEND_NAME, null);
+
+      //////////////////////
+      // produce our qbit //
+      //////////////////////
+      StandardProcessTraceQBitProducer producer = new StandardProcessTraceQBitProducer()
+         .withStandardProcessTraceQBitConfig(new StandardProcessTraceQBitConfig()
+            .withTableMetaDataCustomizer((QInstance instance, QTableMetaData table) ->
+            {
+               table.setBackendName(MEMORY_BACKEND_NAME);
+               return (table);
+            })
+            .withIncludeBackendActivityStats(true));
+
+      MetaDataProducerMultiOutput allQBitMetaData = producer.produce(qInstance);
+      allQBitMetaData.addSelfToInstance(qInstance);
+
+      ////////////////////////////////////////
+      // produce some test tables           //
+      // note - nice to be a qbit this too? //
+      ////////////////////////////////////////
+      qInstance.addTable(new QTableMetaData()
+         .withName(TABLE_NAME_PERSON)
+         .withBackendName(MEMORY_BACKEND_NAME)
+         .withPrimaryKeyField("id")
+         .withField(new QFieldMetaData("id", QFieldType.INTEGER).withIsEditable(false))
+         .withField(new QFieldMetaData("firstName", QFieldType.STRING).withIsEditable(true))
+         .withField(new QFieldMetaData("lastName", QFieldType.STRING).withIsEditable(true))
+         .withCapability(Capability.QUERY_STATS)
+      );
+
+      qInstance.addTable(new QTableMetaData()
+         .withName(TABLE_NAME_ORDER)
+         .withBackendName(MEMORY_BACKEND_NAME)
+         .withPrimaryKeyField("id")
+         .withField(new QFieldMetaData("id", QFieldType.INTEGER).withIsEditable(false))
+         .withField(new QFieldMetaData("orderNo", QFieldType.STRING).withIsEditable(true))
+         .withField(new QFieldMetaData("storeId", QFieldType.INTEGER).withIsEditable(true))
+         .withField(new QFieldMetaData("shipTo", QFieldType.STRING).withIsEditable(true))
+         .withCapability(Capability.QUERY_STATS)
+      );
+
+      qInstance.addProcess(StreamedETLWithFrontendProcess.processMetaDataBuilder()
+         .withName(PROCESS_NAME_PLACE_ORDERS)
+         .withTableName(TABLE_NAME_PERSON)
+         .withSourceTable(TABLE_NAME_PERSON)
+         .withDestinationTable(TABLE_NAME_ORDER)
+         .withExtractStepClass(ExtractViaQueryStep.class)
+         .withTransformStepClass(PlaceOrdersProcessTransformStep.class)
+         .withLoadStepClass(LoadViaInsertStep.class)
+         .getProcessMetaData()
+         .withProcessTracerCodeReference(new QCodeReference(StandardProcessTracer.class))
+      );
+
+      ///////////////////////////////////////////
+      // turn off audits (why on by default??) //
+      ///////////////////////////////////////////
+      qInstance.getTables().values().forEach(t -> t.setAuditRules(new QAuditRules().withAuditLevel(AuditLevel.NONE)));
+
+      /////////////////
+      // create apps //
+      /////////////////
+      qInstance.addApp(new QAppMetaData()
+         .withName("logs")
+         .withIcon(new QIcon("history_edu"))
+         .withSection(StandardProcessTraceQBitProducer.getAppSection(qInstance)));
+
+      qInstance.addApp(new QAppMetaData()
+         .withName("testData")
+         .withIcon(new QIcon("dataset"))
+         .withSection(new QAppSection()
+            .withName("people")
+            .withTables(List.of(TABLE_NAME_PERSON))));
+
+      return qInstance;
+   }
+
+
+
+   /***************************************************************************
+    * test process transformer - for each input person, creates an output order (to insert)
+    ***************************************************************************/
+   public static class PlaceOrdersProcessTransformStep extends AbstractTransformStep
+   {
+      private ProcessSummaryLine okLine = new ProcessSummaryLine(Status.OK)
+         .withMessageSuffix("")
+         .withSingularFutureMessage("will get a new order")
+         .withPluralFutureMessage("will get new orders")
+         .withSingularPastMessage("got a new order")
+         .withPluralPastMessage("got new orders");
+
+      private ProcessSummaryLine errorLine = new ProcessSummaryLine(Status.ERROR)
+         .withMessageSuffix("")
+         .withSingularFutureMessage("will not get a new order")
+         .withPluralFutureMessage("will not get new orders")
+         .withSingularPastMessage("did not get a new order")
+         .withPluralPastMessage("did not get new orders");
+
+
+
+      /***************************************************************************
+       *
+       ***************************************************************************/
+      @Override
+      public ArrayList<ProcessSummaryLineInterface> getProcessSummary(RunBackendStepOutput runBackendStepOutput, boolean isForResultScreen)
+      {
+         ArrayList<ProcessSummaryLineInterface> rs = new ArrayList<>();
+         okLine.addSelfToListIfAnyCount(rs);
+         errorLine.addSelfToListIfAnyCount(rs);
+         return rs;
+      }
+
+
+
+      /***************************************************************************
+       *
+       ***************************************************************************/
+      @Override
+      public void runOnePage(RunBackendStepInput runBackendStepInput, RunBackendStepOutput runBackendStepOutput) throws QException
+      {
+         for(QRecord personRecord : runBackendStepInput.getRecords())
+         {
+            ////////////////////////////////////////
+            // don't let Mr. Burns order anything //
+            ////////////////////////////////////////
+            if("Burns".equals(personRecord.getValueString("lastName")))
+            {
+               errorLine.incrementCountAndAddPrimaryKey(personRecord.getValue("id"));
+               continue;
+            }
+
+            QRecord orderRecord = new QRecord()
+               .withValue("orderNo", UUID.randomUUID().toString())
+               .withValue("shipTo", personRecord.getValueString("firstName") + " " + personRecord.getValueString("lastName"));
+            runBackendStepOutput.addRecord(orderRecord);
+            okLine.incrementCountAndAddPrimaryKey(personRecord.getValue("id"));
+         }
+      }
+   }
+}
@@ -0,0 +1,115 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.utils;
+
+
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceBackendActivityStats;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.logging.QCollectingLogger;
+import com.kingsrook.qqq.backend.core.logging.QLogger;
+import com.kingsrook.qqq.backend.core.utils.SleepUtils;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Test;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+
+/*******************************************************************************
+ ** Unit test for ProcessTraceBackendActivityStatsManager 
+ *******************************************************************************/
+class ProcessTraceBackendActivityStatsManagerTest
+{
+   ProcessTraceBackendActivityStatsManager.Key key = new ProcessTraceBackendActivityStatsManager.Key("b", "t", "a");
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @AfterEach
+   void afterEach()
+   {
+      ProcessTraceBackendActivityStatsManager manager = ProcessTraceBackendActivityStatsManager.getInstance();
+      manager.shutdown();
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testMaxAgeLarger() throws QException
+   {
+      long              processTraceId   = 1L;
+      QCollectingLogger collectingLogger = QLogger.activateCollectingLoggerForClass(ProcessTraceBackendActivityStatsManager.class);
+
+      ProcessTraceBackendActivityStatsManager manager = ProcessTraceBackendActivityStatsManager.getInstance();
+      manager.initProcess(processTraceId);
+      manager.add(processTraceId, key, 1, 2, 3);
+      manager.setCleanupIntervalMillis(10);
+      manager.setCleanupMaxAge(100);
+      SleepUtils.sleep(50, TimeUnit.MILLISECONDS);
+
+      QLogger.deactivateCollectingLoggerForClass(ProcessTraceBackendActivityStatsManager.class);
+      assertThat(collectingLogger.getCollectedMessages()).allMatch(clm -> clm.getMessage().contains("\"size\":1"));
+
+      List<ProcessTraceBackendActivityStats> stats = manager.getAndRemoveStats(processTraceId);
+      assertEquals(1, stats.size());
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testMaxAgeSmaller() throws QException
+   {
+      long              processTraceId   = 2L;
+      QCollectingLogger collectingLogger = QLogger.activateCollectingLoggerForClass(ProcessTraceBackendActivityStatsManager.class);
+
+      ProcessTraceBackendActivityStatsManager manager = ProcessTraceBackendActivityStatsManager.getInstance();
+      manager.initProcess(processTraceId);
+      manager.add(processTraceId, key, 1, 2, 3);
+      manager.setCleanupIntervalMillis(5);
+      manager.setCleanupMaxAge(20);
+      SleepUtils.sleep(50, TimeUnit.MILLISECONDS);
+
+      QLogger.deactivateCollectingLoggerForClass(ProcessTraceBackendActivityStatsManager.class);
+      assertThat(collectingLogger.getCollectedMessages()).anyMatch(clm -> clm.getMessage().contains("\"size\":1"));
+      assertThat(collectingLogger.getCollectedMessages()).anyMatch(clm -> clm.getMessage().contains("\"size\":0"));
+
+      List<ProcessTraceBackendActivityStats> stats = manager.getAndRemoveStats(processTraceId);
+      assertEquals(0, stats.size());
+
+      ////////////////////////////////////////////////////////////////////////////////////////////
+      // make sure even after a cleanup, we don't fail if we do try to add values for a process //
+      ////////////////////////////////////////////////////////////////////////////////////////////
+      manager.add(processTraceId, key, 1, 2, 3);
+      stats = manager.getAndRemoveStats(processTraceId);
+      assertEquals(1, stats.size());
+   }
+
+}
@@ -0,0 +1,177 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qbits.standardprocesstrace.utils;
+
+
+import java.util.List;
+import com.kingsrook.qbits.standardprocesstrace.BaseTest;
+import com.kingsrook.qbits.standardprocesstrace.StandardProcessTraceTestApplication;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTrace;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceBackendActivityStats;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceSummaryLine;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceSummaryLineRecordInt;
+import com.kingsrook.qbits.standardprocesstrace.model.ProcessTraceSummaryStatusEnum;
+import com.kingsrook.qqq.backend.core.actions.processes.QProcessCallbackFactory;
+import com.kingsrook.qqq.backend.core.actions.processes.RunProcessAction;
+import com.kingsrook.qqq.backend.core.actions.tables.InsertAction;
+import com.kingsrook.qqq.backend.core.actions.tables.QueryAction;
+import com.kingsrook.qqq.backend.core.context.QContext;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.model.actions.processes.RunProcessInput;
+import com.kingsrook.qqq.backend.core.model.actions.processes.RunProcessOutput;
+import com.kingsrook.qqq.backend.core.model.actions.tables.insert.InsertInput;
+import com.kingsrook.qqq.backend.core.model.actions.tables.query.QCriteriaOperator;
+import com.kingsrook.qqq.backend.core.model.actions.tables.query.QFilterCriteria;
+import com.kingsrook.qqq.backend.core.model.actions.tables.query.QQueryFilter;
+import com.kingsrook.qqq.backend.core.model.data.QRecord;
+import com.kingsrook.qqq.backend.core.model.tables.QQQTableTableManager;
+import org.junit.jupiter.api.Test;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+
+/*******************************************************************************
+ ** Unit test for StandardProcessTracer 
+ *******************************************************************************/
+class StandardProcessTracerTest extends BaseTest
+{
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void test() throws QException
+   {
+      insertHomerMargeAndMrBurns();
+
+      ////////////////////////////////////////
+      // run process skipping backend steps //
+      ////////////////////////////////////////
+      RunProcessInput input = new RunProcessInput();
+      input.setProcessName(StandardProcessTraceTestApplication.PROCESS_NAME_PLACE_ORDERS);
+      input.setCallback(QProcessCallbackFactory.forFilter(new QQueryFilter()));
+      input.setFrontendStepBehavior(RunProcessInput.FrontendStepBehavior.SKIP);
+      new RunProcessAction().execute(input);
+
+      baseAssertionsAfterProcess();
+
+      Integer personTableId = QQQTableTableManager.getQQQTableId(QContext.getQInstance(), StandardProcessTraceTestApplication.TABLE_NAME_PERSON);
+      Integer orderTableId  = QQQTableTableManager.getQQQTableId(QContext.getQInstance(), StandardProcessTraceTestApplication.TABLE_NAME_ORDER);
+
+      List<QRecord> processTraceBackendActivityStatRecords = QueryAction.execute(ProcessTraceBackendActivityStats.TABLE_NAME, new QQueryFilter());
+      assertThat(processTraceBackendActivityStatRecords)
+         .hasSizeGreaterThanOrEqualTo(2)
+         .anyMatch(r -> r.getValue("qqqTableId").equals(personTableId) && r.getValue("actionName").equals(QueryAction.class.getSimpleName()) && r.getValueInteger("callCount").equals(1) && r.getValueInteger("recordCount").equals(3))
+         .anyMatch(r -> r.getValue("qqqTableId").equals(orderTableId) && r.getValue("actionName").equals(InsertAction.class.getSimpleName()) && r.getValueInteger("callCount").equals(1) && r.getValueInteger("recordCount").equals(2));
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testResumingFrontendProcess() throws QException
+   {
+      insertHomerMargeAndMrBurns();
+
+      //////////////////////////////////////
+      // start process - break at preview //
+      //////////////////////////////////////
+      RunProcessInput input = new RunProcessInput();
+      input.setProcessName(StandardProcessTraceTestApplication.PROCESS_NAME_PLACE_ORDERS);
+      input.setCallback(QProcessCallbackFactory.forFilter(new QQueryFilter()));
+      input.setFrontendStepBehavior(RunProcessInput.FrontendStepBehavior.BREAK);
+      RunProcessOutput output = new RunProcessAction().execute(input);
+
+      /////////////////////////////////////
+      // continue to execute the process //
+      /////////////////////////////////////
+      input.setProcessUUID(output.getProcessUUID());
+      input.setStartAfterStep(output.getProcessState().getNextStepName().get());
+      new RunProcessAction().execute(input);
+
+      baseAssertionsAfterProcess();
+
+      Integer personTableId = QQQTableTableManager.getQQQTableId(QContext.getQInstance(), StandardProcessTraceTestApplication.TABLE_NAME_PERSON);
+      Integer orderTableId  = QQQTableTableManager.getQQQTableId(QContext.getQInstance(), StandardProcessTraceTestApplication.TABLE_NAME_ORDER);
+
+      List<QRecord> processTraceBackendActivityStatRecords = QueryAction.execute(ProcessTraceBackendActivityStats.TABLE_NAME, new QQueryFilter());
+      assertThat(processTraceBackendActivityStatRecords)
+         .hasSizeGreaterThanOrEqualTo(2)
+         ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+         // this time, there'll be 2 calls to the query (for preview, and execute steps), for twice as many records total //
+         ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+         .anyMatch(r -> r.getValue("qqqTableId").equals(personTableId) && r.getValue("actionName").equals(QueryAction.class.getSimpleName()) && r.getValueInteger("callCount").equals(2) && r.getValueInteger("recordCount").equals(6))
+         .anyMatch(r -> r.getValue("qqqTableId").equals(orderTableId) && r.getValue("actionName").equals(InsertAction.class.getSimpleName()) && r.getValueInteger("callCount").equals(1) && r.getValueInteger("recordCount").equals(2));
+   }
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   private static void insertHomerMargeAndMrBurns() throws QException
+   {
+      ///////////////////////////////////////////////////////////////////////////////////////////////////////////
+      // insert 3 people to run through the process.                                                           //
+      // the process will insert an order for Homer & Marge, but is hard-coded to make an error for Mr. Burns. //
+      ///////////////////////////////////////////////////////////////////////////////////////////////////////////
+      new InsertAction().execute(new InsertInput(StandardProcessTraceTestApplication.TABLE_NAME_PERSON).withRecords(List.of(
+         new QRecord().withValue("id", 100).withValue("firstName", "Homer").withValue("lastName", "Simpson"),
+         new QRecord().withValue("id", 101).withValue("firstName", "Marge").withValue("lastName", "Simpson"),
+         new QRecord().withValue("id", 102).withValue("firstName", "Mr.").withValue("lastName", "Burns")
+      )));
+   }
+
+
+
+   /***************************************************************************
+    *
+    ***************************************************************************/
+   private static void baseAssertionsAfterProcess() throws QException
+   {
+      List<QRecord> processTraceRecords = QueryAction.execute(ProcessTrace.TABLE_NAME, new QQueryFilter());
+      assertEquals(1, processTraceRecords.size());
+
+      List<QRecord> processTraceSummaryLineRecords = QueryAction.execute(ProcessTraceSummaryLine.TABLE_NAME, new QQueryFilter());
+      assertEquals(2, processTraceSummaryLineRecords.size());
+
+      QRecord okSummaryLineRecord = processTraceSummaryLineRecords.stream().filter(r -> r.getValueString("status").equals(ProcessTraceSummaryStatusEnum.OK.getPossibleValueId())).findFirst().get();
+      assertNotNull(okSummaryLineRecord);
+      assertEquals(2, okSummaryLineRecord.getValueInteger("recordCount"));
+
+      List<QRecord> okRecordInts = QueryAction.execute(ProcessTraceSummaryLineRecordInt.TABLE_NAME, new QQueryFilter(new QFilterCriteria("processTraceSummaryLineId", QCriteriaOperator.EQUALS, okSummaryLineRecord.getValueLong("id"))));
+      assertEquals(2, okRecordInts.size());
+      assertThat(okRecordInts).allMatch(r -> r.getValueInteger("recordId").equals(100) || r.getValueInteger("recordId").equals(101));
+
+      QRecord errorSummaryLineRecord = processTraceSummaryLineRecords.stream().filter(r -> r.getValueString("status").equals(ProcessTraceSummaryStatusEnum.ERROR.getPossibleValueId())).findFirst().get();
+      assertNotNull(errorSummaryLineRecord);
+      assertEquals(1, errorSummaryLineRecord.getValueInteger("recordCount"));
+
+      List<QRecord> errorRecordInts = QueryAction.execute(ProcessTraceSummaryLineRecordInt.TABLE_NAME, new QQueryFilter(new QFilterCriteria("processTraceSummaryLineId", QCriteriaOperator.EQUALS, errorSummaryLineRecord.getValueLong("id"))));
+      assertEquals(1, errorRecordInts.size());
+      assertEquals(102, errorRecordInts.get(0).getValueInteger("recordId"));
+   }
+
+}