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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.server.schema.registries;
21  
22  
23  import java.util.Iterator;
24  
25  import javax.naming.NamingException;
26  
27  import org.apache.directory.shared.ldap.schema.Syntax;
28  
29  
30  /**
31   * Manages the lookup and registration of Syntaxes within the system by OID.
32   *
33   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
34   * @version $Rev: 499844 $
35   */
36  public interface SyntaxRegistry extends SchemaObjectRegistry
37  {
38      /**
39       * Looks up a Syntax by its unique Object Identifier or by name.
40       * 
41       * @param id the object identifier or name
42       * @return the Syntax for the id
43       * @throws NamingException if there is a backing store failure or the Syntax
44       * does not exist.
45       */
46      Syntax lookup( String id ) throws NamingException;
47  
48  
49      /**
50       * Registers a Syntax with this registry.  
51       * 
52       * @param syntax the Syntax to register
53       * @throws NamingException if the syntax is already registered or the 
54       * registration operation is not supported
55       */
56      void register( Syntax syntax ) throws NamingException;
57  
58  
59      /**
60       * Checks to see if a Syntax exists.  Backing store failures simply return
61       * false.
62       * 
63       * @param id the object identifier or name
64       * @return true if a Syntax definition exists for the id, false otherwise
65       */
66      boolean hasSyntax( String id );
67  
68  
69      /**
70       * Lists all the Syntaxes within this registry.
71       *
72       * @return an Iterator over all the Syntaxes within this registry
73       */
74      Iterator<Syntax> iterator();
75  }