content: /**
   *
   * 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.alibaba.wasp.fserver;
  
  
  
  /**
   * LeaseListener is an interface meant to be implemented by users of the Leases
   * class.
   *
   * It receives events from the Leases class about the status of its accompanying
   * lease.  Users of the Leases class can use a LeaseListener subclass to, for
   * example, clean up resources after a lease has expired.
   */
  public interface LeaseListener {
    
    /** When a lease expires, this method is called. */
    public void leaseExpired();
  }
  