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Java > Open Source Codes > org > apache > xpath > XPathVisitable


1 /*
2  * Copyright 2002-2004 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  * $Id: XPathVisitable.java,v 1.3 2004/02/17 04:30:02 minchau Exp $
18  */
19 package org.apache.xpath;
20
21 /**
22  * A class that implements this interface will call a XPathVisitor
23  * for itself and members within it's heararchy. If the XPathVisitor's
24  * method returns false, the sub-member heararchy will not be
25  * traversed.
26  */
27 public interface XPathVisitable
28 {
29     /**
30      * This will traverse the heararchy, calling the visitor for
31      * each member. If the called visitor method returns
32      * false, the subtree should not be called.
33      *
34      * @param owner The owner of the visitor, where that path may be
35      * rewritten if needed.
36      * @param visitor The visitor whose appropriate method will be called.
37      */
38     public void callVisitors(ExpressionOwner owner, XPathVisitor visitor);
39 }
40
41
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