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.alipay.remoting.rpc;
  
  import com.alipay.remoting.CommonCommandCode;
  import com.alipay.remoting.util.IDGenerator;
  
  /**
   * Heart beat.
   * 
   * @author jiangping
   * @version $Id: HeartbeatCommand.java, v 0.1 2015-9-10 AM9:46:36 tao Exp $
   */
  public class HeartbeatCommand extends RequestCommand {
  
      /** For serialization  */
      private static final long serialVersionUID = 4949981019109517725L;
  
      /**
       * Construction.
       */
      public HeartbeatCommand() {
          super(CommonCommandCode.HEARTBEAT);
          this.setId(IDGenerator.nextId());
      }
  
  }
  