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1   /*
2    * Copyright (C) 2010 The Guava Authors
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package com.google.common.collect.testing;
18  
19  import com.google.common.annotations.GwtCompatible;
20  import java.io.Serializable;
21  
22  /**
23   * Simple base class to verify that we handle generics correctly.
24   *
25   * @author Kevin Bourrillion
26   */
27  @GwtCompatible
28  public class BaseComparable implements Comparable<BaseComparable>, Serializable {
29    private final String s;
30  
31    public BaseComparable(String s) {
32      this.s = s;
33    }
34  
35    @Override
36    public int hashCode() { // delegate to 's'
37      return s.hashCode();
38    }
39  
40    @Override
41    public boolean equals(Object other) {
42      if (other == null) {
43        return false;
44      } else if (other instanceof BaseComparable) {
45        return s.equals(((BaseComparable) other).s);
46      } else {
47        return false;
48      }
49    }
50  
51    @Override
52    public int compareTo(BaseComparable o) {
53      return s.compareTo(o.s);
54    }
55  
56    private static final long serialVersionUID = 0;
57  }