content: /*
   * Tencent is pleased to support the open source community by making Angel available.
   *
   * Copyright (C) 2017-2018 THL A29 Limited, a Tencent company. All rights reserved.
   *
   * 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
   *
   * https://opensource.org/licenses/Apache-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.tencent.angel.common;
  
  import io.netty.buffer.ByteBuf;
  
  /**
   * Serialize interface. It used by Netty to transfer data.
   */
  public interface Serialize {
    /**
     * Serialize object to the Output stream.
     *
     * @param output the Netty ByteBuf
     */
    void serialize(ByteBuf output);
  
    /**
     * Deserialize object from the input stream.
     *
     * @param input the input stream
     */
    void deserialize(ByteBuf input);
  
    /**
     * Estimate serialized data size of the object, it used to ByteBuf allocation.
     *
     * @return int serialized data size of the object
     */
    int bufferLen();
  }