Adjust how entity draft auditing works.

pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>net.helenus</groupId>
     <artifactId>helenus-core</artifactId>
-    <version>2.0.27-SNAPSHOT</version>
+    <version>2.0.28-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>helenus</name>

src/main/java/net/helenus/core/AbstractAuditedEntityDraft.java

@@ -9,23 +9,31 @@ import java.util.Date;
 
 public abstract class AbstractAuditedEntityDraft<E> extends AbstractEntityDraft<E> {
 
-    public AbstractAuditedEntityDraft(MapExportable entity, AuditProvider auditProvider) {
+    public AbstractAuditedEntityDraft(MapExportable entity) {
         super(entity);
 
         Date in = new Date();
         LocalDateTime ldt = LocalDateTime.ofInstant(in.toInstant(), ZoneId.systemDefault());
         Date now = Date.from(ldt.atZone(ZoneId.systemDefault()).toInstant());
 
-        String who = auditProvider == null ? "unknown" : auditProvider.operatorName();
+        String who = getCurrentAuditor();
 
         if (entity == null) {
-            set("createdBy", who);
+            if (who != null) {
+                set("createdBy", who);
+            }
             set("createdAt", now);
         }
-        set("modifiedBy", who);
+        if (who != null) {
+            set("modifiedBy", who);
+        }
         set("modifiedAt", now);
     }
 
+    protected String getCurrentAuditor() {
+        return null;
+    }
+
     public Date createdAt() {
         return (Date) get("createdAt", Date.class);
     }

src/main/java/net/helenus/core/AuditProvider.java

@@ -1,10 +0,0 @@
-package net.helenus.core;
-
-public interface AuditProvider {
-
-    /**
-     * What to record in the database row as the name of the agent causing the mutation.
-     * @return a string name that indicates the identity of the operator mutating the data at this time.
-     */
-    public String operatorName();
-}

src/main/java/net/helenus/core/operation/UpdateOperation.java

@@ -576,4 +576,19 @@ public final class UpdateOperation<E> extends AbstractFilterOperation<E, UpdateO
               + p.getEntity().getMappingInterface());
     }
   }
+
+  @Override
+  public E sync(UnitOfWork uow) {
+    E result = super.sync(uow);
+    if (draft != null) {
+      String key = getStatementCacheKey();
+      if (key != null) {
+        Set<Object> set = new HashSet<Object>(1);
+        set.add(result);
+        uow.getCache().put(key, set);
+      }
+    }
+    return result;
+  }
+
 }

src/test/java/net/helenus/test/integration/core/draft/Inventory.java

@@ -24,18 +24,20 @@ public interface Inventory {
 
         // Entity/Draft pattern-enabling methods:
         Draft(UUID id) {
-            super(null, null);
+            super(null);
 
             // Primary Key:
             set("id", id);
         }
 
         Draft(Inventory inventory) {
-            super((MapExportable) inventory, null);
+            super((MapExportable) inventory);
         }
 
         public Class<Inventory> getEntityClass() { return Inventory.class; }
 
+        protected String getCurrentAuditor() { return "unknown"; }
+
         // Immutable properties:
         public UUID id() {
             return this.<UUID>get("id", UUID.class);