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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.internal.context;
21  
22  /**
23   * This class makes it possible to put "null" values into the Map.
24   */
25  public final class StringValue {
26  
27    public static final StringValue NULL = new StringValue(null);
28  
29    private String value;
30  
31    public StringValue(String value) {
32      this.value = value;
33    }
34  
35    public String getValue() {
36      return value;
37    }
38  
39    @Override
40    public boolean equals(Object o) {
41      if (this == o) {
42        return true;
43      }
44      if (o == null || getClass() != o.getClass()) {
45        return false;
46      }
47  
48      StringValue that = (StringValue) o;
49  
50      if (value != null ? !value.equals(that.value) : that.value != null) {
51        return false;
52      }
53  
54      return true;
55    }
56  
57    @Override
58    public int hashCode() {
59      return (value != null ? value.hashCode() : 0);
60    }
61  }