LockListener.java

/**
 *
 * 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.zookeeper.recipes.lock;

/**
 * This class has two methods which are call
 * back methods when a lock is acquired and 
 * when the lock is released.
 *
 */
public interface LockListener {
    /**
     * call back called when the lock 
     * is acquired
     */
    public void lockAcquired();
    
    /**
     * call back called when the lock is 
     * released.
     */
    public void lockReleased();
}