How to use

buildsNewInstance

method

in

org.eclipse.persistence.descriptors.copying.CopyPolicy

/**
 * INTERNAL:
 * Return if this mapping requires its attribute value to be cloned.
 */
@Override
public boolean isCloningRequired() {
  return isMutable() || getDescriptor().getCopyPolicy().buildsNewInstance();
}

/**
 * INTERNAL:
 * Return if this mapping requires its attribute value to be cloned.
 */
@Override
public boolean isCloningRequired() {
  return isMutable() || getDescriptor().getCopyPolicy().buildsNewInstance();
}

/**
 * INTERNAL:
 * Return if this mapping requires its attribute value to be cloned.
 */
public boolean isCloningRequired() {
  return isMutable() || getDescriptor().getCopyPolicy().buildsNewInstance();
}

  objectBuilder.mergeIntoObject(original, true, clone, this, false, !descriptor.getCopyPolicy().buildsNewInstance());
} else if (!objectChangeSet.isNew()) {
  objectBuilder.mergeIntoObject(original, true, clone, this, false, !descriptor.getCopyPolicy().buildsNewInstance());
} else {
  objectBuilder.mergeChangesIntoObject(original, objectChangeSet, clone, this, !descriptor.getCopyPolicy().buildsNewInstance());
  objectBuilder.mergeIntoObject(original, true, clone, this, false, !descriptor.getCopyPolicy().buildsNewInstance());
  updateCacheKeyProperties(unitOfWork, original, clone, objectChangeSet, descriptor);

original = ((UnitOfWorkImpl) this.session).buildOriginal(source);
if (descriptor.getCopyPolicy().buildsNewInstance()){
  List<DatabaseMapping> pkMappings = descriptor.getObjectBuilder().getPrimaryKeyMappings();
  for (DatabaseMapping mapping : pkMappings){

original = ((UnitOfWorkImpl) this.session).buildOriginal(source);
if (descriptor.getCopyPolicy().buildsNewInstance()){
  List<DatabaseMapping> pkMappings = descriptor.getObjectBuilder().getPrimaryKeyMappings();
  for (DatabaseMapping mapping : pkMappings){

  cacheKey.setObject(original);
objectBuilder.mergeIntoObject(original, objectChangeSet, true, clone, this, targetSession, false, !descriptor.getCopyPolicy().buildsNewInstance(), originalWasNull);
  objectBuilder.mergeIntoObject(original, objectChangeSet, true, clone, this, targetSession, false, !descriptor.getCopyPolicy().buildsNewInstance(), false);
  if (originalWasNull && !unitOfWork.isObjectRegistered(clone)){
  objectBuilder.mergeChangesIntoObject(original, objectChangeSet, clone, this, targetSession, !descriptor.getCopyPolicy().buildsNewInstance(), true);

  cacheKey.setObject(original);
objectBuilder.mergeIntoObject(original, null, true, clone, this, targetSession, false, !descriptor.getCopyPolicy().buildsNewInstance(), true);
  objectBuilder.mergeIntoObject(original, objectChangeSet, true, clone, this, targetSession, false, !descriptor.getCopyPolicy().buildsNewInstance(), true);
  if (!unitOfWork.isObjectRegistered(clone)){
  objectBuilder.mergeChangesIntoObject(original, objectChangeSet, clone, this, targetSession, !descriptor.getCopyPolicy().buildsNewInstance(), true);