01: /*
02: * Copyright 2002-2004 The Apache Software Foundation.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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: * This will traverse the heararchy, calling the visitor for
30: * each member. If the called visitor method returns
31: * false, the subtree should not be called.
32: *
33: * @param owner The owner of the visitor, where that path may be
34: * rewritten if needed.
35: * @param visitor The visitor whose appropriate method will be called.
36: */
37: public void callVisitors(ExpressionOwner owner, XPathVisitor visitor);
38: }
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