#296 - ENH: Add to transaction setUpdateAllLoadedProperties() - force update all properties api

src/main/java/com/avaje/ebean/Transaction.java

@@ -97,6 +97,17 @@ public interface Transaction extends Closeable {
    */
   void setPersistCascade(boolean persistCascade);
 
+  /**
+   * Set to true when you want all loaded properties to be included in the update
+   * (rather than just the changed properties).
+   * <p>
+   *   You might set this when using JDBC batch in order to get multiple updates
+   *   with slightly different sets of changed properties into the same statement
+   *   and hence better JDBC batch performance.
+   * </p>
+   */
+  void setUpdateAllLoadedProperties(boolean updateAllLoadedProperties);
+
   /**
    * Turn on or off statement batching. Statement batching can be transparent
    * for drivers and databases that support getGeneratedKeys. Otherwise you may

src/main/java/com/avaje/ebean/bean/EntityBeanIntercept.java

@@ -608,7 +608,7 @@ public final class EntityBeanIntercept implements Serializable {
       } else if (embeddedDirty != null && embeddedDirty[i]) {
         // an embedded property has been changed - recurse
         EntityBean embeddedBean = (EntityBean)owner._ebean_getField(i);
-        embeddedBean._ebean_getIntercept().addDirtyPropertyValues(dirtyValues, getProperty(i)+".");
+        embeddedBean._ebean_getIntercept().addDirtyPropertyValues(dirtyValues, getProperty(i) + ".");
       }
     }
   }
@@ -638,6 +638,20 @@ public final class EntityBeanIntercept implements Serializable {
     return hash;
   }
 
+  /**
+   * Return a loaded property hash.
+   */
+  public int getLoadedPropertyHash() {
+    int hash = 37;
+    int len = getPropertyLength();
+    for (int i = 0; i < len; i++) {
+      if (isLoadedProperty(i)) {
+        hash = hash * 31 + (i+1);
+      }
+    }
+    return hash;
+  }
+
   /**
    * Return the set of property names for changed properties.
    */

src/main/java/com/avaje/ebeaninternal/api/ScopedTransaction.java

@@ -152,6 +152,16 @@ public class ScopedTransaction implements SpiTransaction {
     transaction.setPersistCascade(persistCascade);
   }
 
+  @Override
+  public void setUpdateAllLoadedProperties(boolean updateAllLoaded) {
+    transaction.setUpdateAllLoadedProperties(updateAllLoaded);
+  }
+
+  @Override
+  public boolean isUpdateAllLoadedProperties() {
+    return transaction.isUpdateAllLoadedProperties();
+  }
+
   @Override
   public void setBatchMode(boolean useBatch) {
     transaction.setBatchMode(useBatch);

src/main/java/com/avaje/ebeaninternal/api/SpiTransaction.java

@@ -99,6 +99,11 @@ public interface SpiTransaction extends Transaction {
    */
   String getId();
 
+  /**
+   * Return true if this transaction has updateAllLoadedProperties set.
+   */
+  boolean isUpdateAllLoadedProperties();
+
   /**
    * Return the batchSize specifically set for this transaction or 0.
    * <p>

src/main/java/com/avaje/ebeaninternal/server/core/PersistRequestBean.java

@@ -641,10 +641,14 @@ public final class PersistRequestBean<T> extends PersistRequest implements BeanP
   }
 
   /**
-   * Test if the property value has changed and if so include it in the update.
+   * Return true if the property should be included in the update.
    */
   public boolean isAddToUpdate(BeanProperty prop) {
-    return intercept.isDirtyProperty(prop.getPropertyIndex());
+    if (transaction.isUpdateAllLoadedProperties()) {
+      return intercept.isLoadedProperty(prop.getPropertyIndex());
+    } else {
+      return intercept.isDirtyProperty(prop.getPropertyIndex());
+    }
   }
 
   public List<DerivedRelationshipData> getDerivedRelationships() {

src/main/java/com/avaje/ebeaninternal/server/persist/dml/UpdateMeta.java

@@ -110,12 +110,17 @@ public final class UpdateMeta {
 
   private SpiUpdatePlan getDynamicUpdatePlan(ConcurrencyMode mode, PersistRequestBean<?> persistRequest) {
 
-
     // we can use a cached UpdatePlan for the changed properties
-    
+
     EntityBeanIntercept ebi = persistRequest.getEntityBeanIntercept();
-    int hash = ebi.getDirtyPropertyHash();
-    
+
+    int hash;
+    if (persistRequest.getTransaction().isUpdateAllLoadedProperties()) {
+      hash = ebi.getLoadedPropertyHash();
+    } else {
+      hash = ebi.getDirtyPropertyHash();
+    }
+
     BeanDescriptor<?> beanDescriptor = persistRequest.getBeanDescriptor();
     
     BeanProperty versionProperty = beanDescriptor.getVersionProperty();

src/main/java/com/avaje/ebeaninternal/server/transaction/JdbcTransaction.java

@@ -91,6 +91,8 @@ public class JdbcTransaction implements SpiTransaction {
 
   protected boolean localReadOnly;
 
+  protected boolean updateAllLoadedProperties;
+
   protected PersistBatch oldBatchMode;
 
   protected PersistBatch batchMode;
@@ -393,6 +395,15 @@ public class JdbcTransaction implements SpiTransaction {
     }
   }
 
+  @Override
+  public void setUpdateAllLoadedProperties(boolean updateAllLoadedProperties) {
+    this.updateAllLoadedProperties = updateAllLoadedProperties;
+  }
+
+  public boolean isUpdateAllLoadedProperties() {
+    return updateAllLoadedProperties;
+  }
+
   @Override
   public void setBatchMode(boolean batchMode) {
     if (!isActive()) {