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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.shardingsphere.infra.binder.context.segment.select.orderby;
19  
20  import lombok.Getter;
21  import lombok.RequiredArgsConstructor;
22  import lombok.Setter;
23  import org.apache.shardingsphere.sql.parser.sql.common.segment.dml.order.item.OrderByItemSegment;
24  
25  /**
26   * Order by item.
27   */
28  @RequiredArgsConstructor
29  @Getter
30  @Setter
31  public final class OrderByItem {
32      
33      private final OrderByItemSegment segment;
34      
35      private int index;
36      
37      @Override
38      public boolean equals(final Object obj) {
39          if (!(obj instanceof OrderByItem)) {
40              return false;
41          }
42          OrderByItem orderByItem = (OrderByItem) obj;
43          return segment.getOrderDirection() == orderByItem.segment.getOrderDirection() && index == orderByItem.index;
44      }
45      
46      @Override
47      public int hashCode() {
48          return segment.getOrderDirection().hashCode() + Integer.hashCode(index);
49      }
50  }