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.internal.corext.refactoring.tagging;
  
  /**
   * Interface for refactorings which are able to create
   * appropriate delegates for the refactored elements.
   * 
   * 
   *
   */
  public interface IDelegateUpdating {
  
  	/**
  	 * Performs a dynamic check whether this refactoring object is capable of
  	 * creating appropriate delegates for the refactored elements. The
  	 * return value of this method may change according to the state of the
  	 * refactoring.
  	 */
  	public boolean canEnableDelegateUpdating();
  
  	/**
  	 * If <code>canEnableDelegateUpdating</code> returns
  	 * <code>true</code>, then this method is used to ask the refactoring
  	 * object whether delegates will be created.
  	 * This call can be ignored if <code>canEnableDelegateUpdating</code>
  	 * returns <code>false</code>.
  	 */
  	public boolean getDelegateUpdating();
  
  	/**
  	 * Returns the title of the preference to update delegates in the user
  	 * interface.
  	 * 
  	 * @param plural
  	 *            <code>true</code> if several delegates are created,
  	 *            <code>false</code> otherwise
  	 * @return the non-null string denoting the title
  	 */
  	public String getDelegateUpdatingTitle(boolean plural);
  
  	/**
  	 * If <code>canEnableDelegateUpdating</code> returns
  	 * <code>true</code>, then this method is used to ask the refactoring
  	 * object whether delegates will be deprecated.
  	 * This call can be ignored if <code>canEnableDelegateUpdating</code>
  	 * returns <code>false</code>.
  	 */
  	public boolean getDeprecateDelegates();
  	
  	/**
  	 * If <code>canEnableDelegateUpdating</code> returns
  	 * <code>true</code>, then this method may be called to set whether
  	 * to create delegates.
  	 * This call can be ignored if <code>canEnableDelegateUpdating</code>
  	 * returns <code>false</code>.
  	 */
  	public void setDelegateUpdating(boolean updating);
  	
  	/**
  	 * If <code>canEnableDelegateUpdating</code> returns
  	 * <code>true</code>, then this method may be called to set whether
  	 * to deprecate delegates.
  	 * This call can be ignored if <code>canEnableDelegateUpdating</code>
  	 * returns <code>false</code>.
  	 */
  	public void setDeprecateDelegates(boolean deprecate);
  }
  