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 com.sun.org.apache.xpath.internal;

  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.