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The source code

/*
 *                 Sun Public License Notice
 * 
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 * 
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2000 Sun
 * Microsystems, Inc. All Rights Reserved.
 */

package org.openide.src.nodes;

import org.openide.nodes.Node;
import org.openide.src.*;

/** A factory used to create
* instances of hierarchy node implementations.
* Loaders that use the element hierarchy
* should implement this factory
* so as to provide their own implementations of hierarchy element nodes.
* @see ClassChildren
* @see SourceChildren
*
* @author Petr Hrebejk
*/
public class FilterFactory implements ElementNodeFactory {

    private ElementNodeFactory delegate;


    public final void attachTo( ElementNodeFactory factory ) {
        delegate = factory;
    }

    /** Make a node representing a constructor.
    * @param element the constructor
    * @return a constructor node instance
    */
    public Node createConstructorNode (ConstructorElement element) {
        return delegate.createConstructorNode( element );
    }

    /** Make a node representing a method.
    * @param element the method
    * @return a method node instance
    */
    public Node createMethodNode (MethodElement element) {
        return delegate.createMethodNode( element );
    }

    /** Make a node representing a field.
    * @param element the field
    * @return a field node instance
    */
    public Node createFieldNode (FieldElement element) {
        return delegate.createFieldNode( element );
    }

    /** Make a node representing an initializer.
    * @param element the initializer
    * @return an initializer node instance
    */
    public Node createInitializerNode (InitializerElement element) {
        return delegate.createInitializerNode( element );
    }

    /** Make a node representing a class.
    * @param element the class
    * @return a class node instance
    */
    public Node createClassNode (ClassElement element) {
        return delegate.createClassNode( element );
    }

    /** Make a node indicating that the creation of children
    * is still under way.
    * It should be used when the process is slow.
    * @return a wait node
    */
    public Node createWaitNode () {
        return delegate.createWaitNode( );
    }

    /** Make a node indicating that there was an error creating
    * the element children.
    * @return the error node
    */
    public Node createErrorNode () {
        return delegate.createErrorNode( );
    }

}
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