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/*
 * 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 com.gemstone.gemfire.management;

import java.util.Map;

import com.gemstone.gemfire.distributed.DistributedLockService;


/**
 * MBean that provides access to information for a named instance of {@link DistributedLockService}.
 * Since any number of DistributedLockService objects can be created by a member there may be 0 or
 * more instances of this MBean available.
 * 
 * @author rishim
 * @since 7.0
 * 
 */
public interface DistributedLockServiceMXBean {

  /**
   * Returns the name of the LockService.
   */
  public String getName();

  /**
   * Returns the number of members using this LockService.
   */
  public int getMemberCount();

  /**
   * Returns of the name of the member which grants the lock.
   */
  public String fetchGrantorMember();

  /**
   * Returns a list of names of the members using this LockService.
   */
  public String[] getMemberNames();

  /**
   * Returns a map of the names of the objects being locked on and the names of
   * the threads holding the locks.
   */
  public Map listThreadsHoldingLock();

  /**
   * Returns a list of names of the locks held by this member's threads.
   */
  public String[] listHeldLocks();

}