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.route;
  
  /**
   * @author xianmao.hexm
   */
  public final class RouteResultsetNode {
      public final static Integer DEFAULT_REPLICA_INDEX = -1;
  
      private final String name; // 数据节点名称
      private final int replicaIndex;// 数据源编号
      private final String statement; // 执行的语句
  
      public RouteResultsetNode(String name, String statement) {
          this(name, DEFAULT_REPLICA_INDEX, statement);
      }
  
      public RouteResultsetNode(String name, int index, String statement) {
          this.name = name;
          this.replicaIndex = index;
          this.statement = statement;
      }
  
      public String getName() {
          return name;
      }
  
      public int getReplicaIndex() {
          return replicaIndex;
      }
  
      public String getStatement() {
          return statement;
      }
  
      @Override
      public int hashCode() {
          return name.hashCode();
      }
  
      @Override
      public boolean equals(Object obj) {
          if (this == obj)
              return true;
          if (obj instanceof RouteResultsetNode) {
              RouteResultsetNode rrn = (RouteResultsetNode) obj;
              if (replicaIndex == rrn.getReplicaIndex() && equals(name, rrn.getName())) {
                  return true;
              }
          }
          return false;
      }
  
      @Override
      public String toString() {
          StringBuilder s = new StringBuilder();
          s.append(name).append('.');
          if (replicaIndex < 0) {
              s.append("default");
          } else {
              s.append(replicaIndex);
          }
          s.append('{').append(statement).append('}');
          return s.toString();
      }
  
      private static boolean equals(String str1, String str2) {
          if (str1 == null) {
              return str2 == null;
          }
          return str1.equals(str2);
      }
  
  }
  