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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.syntaxCheckers;
21  
22  
23  import org.apache.directory.api.ldap.model.constants.SchemaConstants;
24  import org.apache.directory.api.ldap.model.schema.SyntaxChecker;
25  
26  
27  /**
28   * A SyntaxChecker which verifies that a value is a Fax according to RFC 4517.
29   * <p>
30   * We didn't implemented the check against RFC 804, so the value is considered
31   * to contain an OctetString.
32   *  
33   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
34   */
35  @SuppressWarnings("serial")
36  public final class FaxSyntaxChecker extends SyntaxChecker
37  {
38      /**
39       * A static instance of FaxSyntaxChecker
40       */
41      public static final FaxSyntaxChecker INSTANCE = new FaxSyntaxChecker( SchemaConstants.FAX_SYNTAX );
42      
43      /**
44       * A static Builder for this class
45       */
46      public static final class Builder extends SCBuilder<FaxSyntaxChecker>
47      {
48          /**
49           * The Builder constructor
50           */
51          private Builder()
52          {
53              super( SchemaConstants.FAX_SYNTAX );
54          }
55          
56          
57          /**
58           * Create a new instance of FaxSyntaxChecker
59           * @return A new instance of FaxSyntaxChecker
60           */
61          @Override
62          public FaxSyntaxChecker build()
63          {
64              return new FaxSyntaxChecker( oid );
65          }
66      }
67  
68      
69      /**
70       * Private default constructor to prevent unnecessary instantiation.
71       * 
72       * @param oid The OID to use for this SyntaxChecker
73       */
74      private FaxSyntaxChecker( String oid )
75      {
76          super( oid );
77      }
78  
79      
80      /**
81       * @return An instance of the Builder for this class
82       */
83      public static Builder builder()
84      {
85          return new Builder();
86      }
87  }