/***************************************************************** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. ****************************************************************/ package org.apache.cayenne.reflect.generic; import org.apache.cayenne.DataObject; import org.apache.cayenne.reflect.PersistentDescriptor; import org.apache.cayenne.reflect.PropertyException; /** * A ClassDescriptor for "generic" persistent classes implementing {@link DataObject} * interface. * * @since 3.0 */ // non-public as the only difference with the superclass is version handling on merge - // this is something we need to solved in a more generic fashion (e.g. as via enhancer) // for other object types. class DataObjectDescriptor extends PersistentDescriptor { @Override public void shallowMerge(Object from, Object to) throws PropertyException { injectValueHolders(to); super.shallowMerge(from, to); if (from instanceof DataObject && to instanceof DataObject) { ((DataObject) to) .setSnapshotVersion(((DataObject) from).getSnapshotVersion()); } } }