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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.schema;
21  
22  
23  import java.io.Serializable;
24  import java.util.Comparator;
25  
26  
27  /**
28   * An class used for Comparator. It inherits from the general AbstractAdsSchemaObject class. It
29   * also implements the Comparator interface
30   * 
31   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
32   */
33  public abstract class LdapComparator<T> extends LoadableSchemaObject implements Comparator<T>, Serializable
34  {
35      /** The serial version UID */
36      private static final long serialVersionUID = 2L;
37  
38  
39      /**
40       * Create a new instance of a Comparator
41       * @param oid The associated OID
42       */
43      protected LdapComparator( String oid )
44      {
45          super( SchemaObjectType.COMPARATOR, oid );
46      }
47  
48  
49      /**
50       * Store the SchemaManager in this instance. It may be necessary for some
51       * comparator which needs to have access to the oidNormalizer Map.
52       *
53       * @param schemaManager the schemaManager to store
54       */
55      public void setSchemaManager( SchemaManager schemaManager )
56      {
57          // Do nothing (general case).
58      }
59  
60  
61      /**
62       * {@inheritDoc}
63       */
64      @Override
65      public boolean equals( Object o )
66      {
67          if ( !super.equals( o ) )
68          {
69              return false;
70          }
71  
72          return o instanceof LdapComparator<?>;
73      }
74  
75  
76      /**
77       * {@inheritDoc}
78       */
79      @Override
80      public String toString()
81      {
82          return objectType + " " + DescriptionUtils.getDescription( this );
83      }
84  }