1  // HTMLParser Library $Name: v1_6_20060319 $ - A java-based parser for HTML
 2  // http://sourceforge.org/projects/htmlparser
 3  // Copyright (C) 2003 Derrick Oswald
 4  //
 5  // Revision Control Information
 6  //
 7  // $Source: /cvsroot/htmlparser/htmlparser/src/org/htmlparser/NodeFilter.java,v $
 8  // $Author: derrickoswald $
 9  // $Date: 2005/05/15 11:49:03 $
10  // $Revision: 1.4 $
11  //
12  // This library is free software; you can redistribute it and/or
13  // modify it under the terms of the GNU Lesser General Public
14  // License as published by the Free Software Foundation; either
15  // version 2.1 of the License, or (at your option) any later version.
16  //
17  // This library is distributed in the hope that it will be useful,
18  // but WITHOUT ANY WARRANTY; without even the implied warranty of
19  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20  // Lesser General Public License for more details.
21  //
22  // You should have received a copy of the GNU Lesser General Public
23  // License along with this library; if not, write to the Free Software
24  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25  //
26  
27  package org.htmlparser;
28  
29  import java.io.Serializable;
30  
31  /**
32   * Implement this interface to select particular nodes.
33   */
34  public interface NodeFilter
35      extends
36          Serializable,
37          Cloneable
38  {
39      /**
40       * Predicate to determine whether or not to keep the given node.
41       * The behaviour based on this outcome is determined by the context
42       * in which it is called. It may lead to the node being added to a list
43       * or printed out. See the calling routine for details.
44       * @return <code>true</code> if the node is to be kept, <code>false</code>
45       * if it is to be discarded.
46       * @param node The node to test.
47       */
48      boolean accept (Node node);
49  }