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1   package org.apache.commons.graph.visit;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.apache.commons.graph.Edge;
23  import org.apache.commons.graph.Graph;
24  import org.apache.commons.graph.Vertex;
25  
26  /**
27   * Description of the Interface
28   */
29  public interface GraphVisitHandler<V extends Vertex, E extends Edge<V>>
30  {
31  
32      /**
33       * Description of the Method
34       */
35      void discoverGraph( Graph<V, E> graph );
36  
37      /**
38       * Description of the Method
39       */
40      void discoverVertex( V vertex );
41  
42      /**
43       * Description of the Method
44       */
45      void discoverEdge( E edge );
46  
47      /**
48       * Description of the Method
49       */
50      void finishEdge( E edge );
51  
52      /**
53       * Description of the Method
54       */
55      void finishVertex( V vertex );
56  
57      /**
58       * Description of the Method
59       */
60      void finishGraph( Graph<V, E> graph );
61  
62  }