/**
* Copyright 2008 the original author or authors.
*
* Licensed 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 net.sf.katta.zk;
import java.util.List;
import net.sf.katta.util.KattaException;
/**
* An {@link IZkChildListener} can be registered at a {@link ZKClient} for
* listening on zk child changes for a given path.
*
* Node: Also this listener re-subscribes it watch for the path on each zk event
* (zk watches are one-timers) is is not guaranteed that events on the path are
* missing (see http://zookeeper.wiki.sourceforge.net/ZooKeeperWatches). An
* implementation of this class should take that into account.
*
*/
public interface IZkChildListener {
void handleChildChange(String parentPath, List<String> currentChilds) throws KattaException;
}