content: /*******************************************************************************
   * Copyright (c) 2000, 2008 IBM Corporation and others.
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * which accompanies this distribution, and is available at
   * http://www.eclipse.org/legal/epl-v10.html
   *
   * Contributors:
   *     IBM Corporation - initial API and implementation
   *******************************************************************************/
  package org.eclipse.wst.jsdt.ui;
  
  import org.eclipse.jface.viewers.Viewer;
  import org.eclipse.jface.viewers.ViewerSorter;
  
  
  /**
   * Sorter for JavaScript elements. Ordered by element category, then by element name. 
   * Package fragment roots are sorted as ordered on the classpath.
   * 
   * <p>
   * This class may be instantiated; it is not intended to be subclassed.
   * </p>
   * Provisional API: This class/interface is part of an interim API that is still under development and expected to
   * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
   * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
   * (repeatedly) as the API evolves.
   */
  public class JavaElementSorter extends ViewerSorter {
  	
  	private final JavaScriptElementComparator fComparator;
  	
  	/**
  	 * Constructor.
  	 */
  	public JavaElementSorter() {	
  		super(null); // delay initialization of collator
  		fComparator= new JavaScriptElementComparator();
  	}
  		
  	/*
  	 * @see ViewerSorter#category
  	 */
  	public int category(Object element) {
  		return fComparator.category(element);
  	}
  	
  	/*
  	 * @see ViewerSorter#compare
  	 */
  	public int compare(Viewer viewer, Object e1, Object e2) {
  		return fComparator.compare(viewer, e1, e2);
  	}
  	
  	/**
  	 * Overrides {@link org.eclipse.jface.viewers.ViewerSorter#getCollator()}.
  	 * @deprecated The method is not intended to be used by clients.
  	 */
  	public final java.text.Collator getCollator() {
  		// kept in for API compatibility
  		if (collator == null) {
  			collator= java.text.Collator.getInstance();
  		}
  		return collator;
  	}
  }
  