View Javadoc

1   /*
2    *   Copyright 2004 The Apache Software Foundation
3    *
4    *   Licensed under the Apache License, Version 2.0 (the "License");
5    *   you may not use this file except in compliance with the License.
6    *   You may obtain a copy of the License at
7    *
8    *       http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *   Unless required by applicable law or agreed to in writing, software
11   *   distributed under the License is distributed on an "AS IS" BASIS,
12   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *   See the License for the specific language governing permissions and
14   *   limitations under the License.
15   *
16   */
17  package org.apache.asn1.ber;
18  
19  
20  
21  
22  /***
23   * A callback interface used to monitor the activities of a tuple node visitor.
24   *
25   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
26   * @version $Rev$
27   */
28  public interface VisitorMonitor
29  {
30      /*** The do nothing visitor monitor */
31      VisitorMonitor NOOP = new VisitorMonitor() {
32          public void visited( TupleNodeVisitor v, TupleNode n ) {} };
33  
34      /***
35       * Notifies that a node has been visited.
36       *
37       * @param visitor the visitor visiting the node
38       * @param node the not that has already been visited
39       */
40      void visited( TupleNodeVisitor visitor, TupleNode node );
41  }