Copyright 2010 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.
/**
 * Copyright 2010 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 org.I0Itec.zkclient;

import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.ReentrantLock;

public class ZkLock extends ReentrantLock {

    private static final long serialVersionUID = 1L;

    private Condition _dataChangedCondition = newCondition();
    private Condition _stateChangedCondition = newCondition();
    private Condition _zNodeEventCondition = newCondition();

    
This condition will be signaled if a zookeeper event was processed and the event contains a data/child change.
Returns:
the condition./**
     * This condition will be signaled if a zookeeper event was processed and the event contains a data/child change.
     * 
     * @return the condition.
     */
    public Condition getDataChangedCondition() {
        return _dataChangedCondition;
    }

    
This condition will be signaled if a zookeeper event was processed and the event contains a state change
(connected, disconnected, session expired, etc ...).
Returns:
the condition./**
     * This condition will be signaled if a zookeeper event was processed and the event contains a state change
     * (connected, disconnected, session expired, etc ...).
     * 
     * @return the condition.
     */
    public Condition getStateChangedCondition() {
        return _stateChangedCondition;
    }

    
This condition will be signaled if any znode related zookeeper event was received.
Returns:
the condition./**
     * This condition will be signaled if any znode related zookeeper event was received.
     * 
     * @return the condition.
     */
    public Condition getZNodeEventCondition() {
        return _zNodeEventCondition;
    }
}