/***************************************************************** * 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; /** * A convenience base superclass for {@link ToOneProperty} implementors. * * @since 3.0 */ public abstract class BaseToOneProperty extends BaseArcProperty implements ToOneProperty { public BaseToOneProperty(ClassDescriptor owner, ClassDescriptor targetDescriptor, Accessor accessor, String reverseName) { super(owner, targetDescriptor, accessor, reverseName); } public void setTarget(Object source, Object target, boolean setReverse) { Object oldTarget = readProperty(source); if (oldTarget == target) { return; } // TODO, Andrus, 2/9/2006 - CayenneDataObject also invokes "willConnect" and has a // callback to ObjectStore to handle flattened.... if (setReverse) { setReverse(source, oldTarget, target); } writeProperty(source, oldTarget, target); } @Override public boolean visit(PropertyVisitor visitor) { return visitor.visitToOne(this); } }