IElementContentVisitor


1   /*******************************************************************************
2    * Copyright (c) 2000, 2005 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.core.internal.watson;
12  
13  /**
14   * An interface for objects which can visit an element of
15   * an element tree and access that element's node info.
16   * @see ElementTreeIterator
17   */
18  public interface IElementContentVisitor {
19      /** Visits a node (element).
20       * <p> Note that <code>elementContents</code> is equal to<code>tree.
21       * getElement(elementPath)</code> but takes no time.
22       * @param tree the element tree being visited
23       * @param elementContents the object at the node being visited on this call
24       * @param requestor callback object for requesting the path of the object being
25       * visited.
26       * @return true if this element's children should be visited, and false
27       * otherwise.
28       */
29      public boolean visitElement(ElementTree tree, IPathRequestor requestor, Object   elementContents);
30  }
31

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