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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.directory.api.ldap.model.entry;
21  
22  
23  /**
24   * An enum storing the different modification operation which can be used
25   * in a Modification. There is a one to one mapping with the DirContext.ADD_ATTRIBUTE,
26   * DirContext.REMOVE_ATTRIBUTE, DirContext.REPLACE_ATTRIBUTE
27   *
28   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
29   */
30  public enum ModificationOperation
31  {
32      ADD_ATTRIBUTE(0),
33      REMOVE_ATTRIBUTE(1),
34      REPLACE_ATTRIBUTE(2);
35  
36      /** Internal value */
37      private int value;
38  
39  
40      /**
41       * Creates a new instance of ModificationOperation.
42       */
43      private ModificationOperation( int value )
44      {
45          this.value = value;
46      }
47  
48  
49      /**
50       * @return The integer value associated with the element. This value
51       * is equivalent to the one found in DirContext.
52       */
53      public int getValue()
54      {
55          return value;
56      }
57  
58  
59      /**
60       * Get the ModificationOperation from an int value
61       *
62       * @param value the ModificationOperation int value
63       * @return the associated ModifciationOperation instance
64       */
65      public static ModificationOperation getOperation( int value )
66      {
67          if ( value == ADD_ATTRIBUTE.value )
68          {
69              return ADD_ATTRIBUTE;
70          }
71          else if ( value == REMOVE_ATTRIBUTE.value )
72          {
73              return REMOVE_ATTRIBUTE;
74          }
75          else if ( value == REPLACE_ATTRIBUTE.value )
76          {
77              return REPLACE_ATTRIBUTE;
78          }
79          else
80          {
81              return null;
82          }
83      }
84  
85  
86      /**
87       * @see Object#toString()
88       */
89      public String toString()
90      {
91          switch ( this )
92          {
93              case ADD_ATTRIBUTE:
94                  return "add";
95  
96              case REPLACE_ATTRIBUTE:
97                  return "replace";
98  
99              case REMOVE_ATTRIBUTE:
100                 return "remove";
101 
102             default:
103                 return "";
104         }
105     }
106 }