/**
* 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.waveprotocol.wave.client.editor.util;
import org.waveprotocol.wave.client.editor.NodeMutationHandler;
/**
* Convenience class that delegates to another implementation.
*
* Useful for composition.
*
* @author danilatos@google.com (Daniel Danilatos)
*/
public class NodeMutationDelegator<N, E extends N> implements NodeMutationHandler<N, E> {
/**
* Handler to delegate to
*/
protected final NodeMutationHandler<N, E> delegate;
/**
* @param delegate Handler to delegate to
*/
public NodeMutationDelegator(NodeMutationHandler<N, E> delegate) {
this.delegate = delegate;
}
@Override
public void onActivationStart(E element) {
delegate.onActivationStart(element);
}
@Override
public void onActivatedSubtree(E element) {
delegate.onActivatedSubtree(element);
}
@Override
public void onDeactivated(E element) {
delegate.onDeactivated(element);
}
@Override
public void onAddedToParent(E element, E oldParent) {
delegate.onAddedToParent(element, oldParent);
}
@Override
public void onChildAdded(E element, N child) {
delegate.onChildAdded(element, child);
}
@Override
public void onDescendantsMutated(E element) {
delegate.onDescendantsMutated(element);
}
@Override
public void onEmptied(E element) {
delegate.onEmptied(element);
}
@Override
public void onAttributeModified(E element, String name, String oldValue, String newValue) {
delegate.onAttributeModified(element, name, oldValue, newValue);
}
@Override
public void onChildRemoved(E element, N child) {
delegate.onChildRemoved(element, child);
}
@Override
public void onRemovedFromParent(E element, E newParent) {
delegate.onRemovedFromParent(element, newParent);
}
}