content: /*
   * Copyright 1999-2012 Alibaba Group.
   *  
   * 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 com.alibaba.cobar.jdbc.packet;
  
  /**
   * @author xianmao.hexm
   */
  public abstract class MySQLPacket {
  
      public int packetLength;
      public byte packetId;
  
      protected abstract String packetInfo();
  
      @Override
      public String toString() {
          return new StringBuilder().append(packetInfo())
                                    .append("{length=")
                                    .append(packetLength)
                                    .append(",id=")
                                    .append(packetId)
                                    .append('}')
                                    .toString();
      }
  
  }
  