Node


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3     * Copyright 2005, JBoss Inc., and individual contributors as indicated
4     * by the @authors tag. See the copyright.txt in the distribution for a
5     * full listing of individual contributors.
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7     * This is free software; you can redistribute it and/or modify it
8     * under the terms of the GNU Lesser General Public License as
9     * published by the Free Software Foundation; either version 2.1 of
10    * the License, or (at your option) any later version.
11    *
12    * This software is distributed in the hope that it will be useful,
13    * but WITHOUT ANY WARRANTY; without even the implied warranty of
14    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15    * Lesser General Public License for more details.
16    *
17    * You should have received a copy of the GNU Lesser General Public
18    * License along with this software; if not, write to the Free
19    * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20    * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21    */
22  
23  package org.jboss.aop.pointcut.ast;
24  
25  public interface Node {
26  
27    /** This method is called after the node has been made the current
28      node.  It indicates that child nodes can now be added to it. */
29    public void jjtOpen();
30  
31    /** This method is called after all the child nodes have been
32      added. */
33    public void jjtClose();
34  
35    /** This pair of methods are used to inform the node of its
36      parent. */
37    public void jjtSetParent(Node n);
38    public Node jjtGetParent();
39  
40    /** This method tells the node to add its argument to the node's
41      list of children.  */
42    public void jjtAddChild(Node n, int i);
43  
44    /** This method returns a child node.  The children are numbered
45       from zero, left to right. */
46    public Node jjtGetChild(int i);
47  
48    /** Return the number of children the node has. */
49    public int jjtGetNumChildren();
50  
51    /** Accept the visitor. **/
52    public Object   jjtAccept(PointcutExpressionParserVisitor visitor, Object   data);
53  
54     /** Accept the visitor. **/
55     public Object   jjtAccept(TypeExpressionParserVisitor visitor, Object   data);
56  }
57
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