http://www.eclipse.org/platform: Core Resource Management (Eclipse Foundation) 
 Copyright (c) 2000, 2009 IBM Corporation and others.
 This program and the accompanying materials
 are made available under the terms of the Eclipse Public License 2.0
 which accompanies this distribution, and is available at
 https://www.eclipse.org/legal/epl-2.0/
 SPDX-License-Identifier: EPL-2.0
 Contributors:
    IBM Corporation - initial API and implementation

/*******************************************************************************
 *  Copyright (c) 2000, 2009 IBM Corporation and others.
 *
 *  This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License 2.0
 *  which accompanies this distribution, and is available at
 *  https://www.eclipse.org/legal/epl-2.0/
 *
 *  SPDX-License-Identifier: EPL-2.0
 *
 *  Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.core.resources;

import org.eclipse.core.runtime.CoreException;


This interface is implemented by objects that visit resource trees.  The fast
visitor is an optimized mechanism for tree traversal that creates a minimal
number of objects.  The visitor is provided with a callback interface,
instead of a resource.  Through the callback, the visitor can request
information about the resource being visited.


Usage:



class Visitor implements IResourceProxyVisitor {
	public boolean visit (IResourceProxy proxy) {
		//	 your code here
		return true;
	}
}
ResourcesPlugin.getWorkspace().getRoot().accept(new Visitor(), IResource.NONE);




Clients may implement this interface.



See Also:
  • accept.accept(IResourceVisitor)
Since:2.1
/**
 * This interface is implemented by objects that visit resource trees.  The fast
 * visitor is an optimized mechanism for tree traversal that creates a minimal
 * number of objects.  The visitor is provided with a callback interface,
 * instead of a resource.  Through the callback, the visitor can request
 * information about the resource being visited.
 * <p>
 * Usage:
 * </p>
 * <pre>
 * class Visitor implements IResourceProxyVisitor {
 * 	public boolean visit (IResourceProxy proxy) {
 * 		//	 your code here
 * 		return true;
 * 	}
 * }
 * ResourcesPlugin.getWorkspace().getRoot().accept(new Visitor(), IResource.NONE);
 * </pre>
 * <p>
 * Clients may implement this interface.
 * </p>
 *
 * @see IResource#accept(IResourceVisitor)
 * @since 2.1
 */
public interface IResourceProxyVisitor {
	
Visits the given resource.

Params:
  • proxy – for requesting information about the resource being visited;
this object is only valid for the duration of the invocation of this
method, and must not be used after this method has completed
Throws:
Returns:true if the resource's members should
	be visited; false if they should be skipped
/**
	 * Visits the given resource.
	 *
	 * @param proxy for requesting information about the resource being visited;
	 * this object is only valid for the duration of the invocation of this
	 * method, and must not be used after this method has completed
	 * @return <code>true</code> if the resource's members should
	 *		be visited; <code>false</code> if they should be skipped
	 * @exception CoreException if the visit fails for some reason.
	 */
	boolean visit(IResourceProxy proxy) throws CoreException;
}