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  
21  import java.io.Serializable;
22  
23  /**
24   * Simple base class to verify that we handle generics correctly.
25   *
26   * @author Kevin Bourrillion
27   */
28  @GwtCompatible
29  public class BaseComparable implements Comparable<BaseComparable>, Serializable {
30    private final String s;
31  
32    public BaseComparable(String s) {
33      this.s = s;
34    }
35  
36    @Override public int hashCode() { // delegate to 's'
37      return s.hashCode();
38    }
39  
40    @Override public boolean equals(Object other) {
41      if (other == null) {
42        return false;
43      } else if (other instanceof BaseComparable) {
44        return s.equals(((BaseComparable) other).s);
45      } else {
46        return false;
47      }
48    }
49  
50    @Override
51    public int compareTo(BaseComparable o) {
52      return s.compareTo(o.s);
53    }
54  
55    private static final long serialVersionUID = 0;
56  }