content: /*******************************************************************************
   * Copyright (c) 2000, 2007 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.internal.ui.search;
  
  import org.eclipse.jface.viewers.IStructuredContentProvider;
  import org.eclipse.jface.viewers.Viewer;
  
  public abstract class JavaSearchContentProvider implements IStructuredContentProvider {
  	protected final Object[] EMPTY_ARR= new Object[0];
  	
  	private JavaSearchResult fResult;
  	private JavaSearchResultPage fPage;
  
  	JavaSearchContentProvider(JavaSearchResultPage page) {
  		fPage= page;
  	}
  	
  	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  		initialize((JavaSearchResult) newInput);
  		
  	}
  	
  	protected void initialize(JavaSearchResult result) {
  		fResult= result;
  	}
  	
  	public abstract void elementsChanged(Object[] updatedElements);
  	public abstract void clear();
  
  	public void dispose() {
  		// nothing to do
  	}
  
  	JavaSearchResultPage getPage() {
  		return fPage;
  	}
  	
  	JavaSearchResult getSearchResult() {
  		return fResult;
  	}
  
  }
  