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com.exigen.ie.constrainer.Undoable Maven / Gradle / Ivy

package com.exigen.ie.constrainer;

///////////////////////////////////////////////////////////////////////////////
/*
 * Copyright Exigen Group 1998, 1999, 2000
 * 320 Amboy Ave., Metuchen, NJ, 08840, USA, www.exigengroup.com
 *
 * The copyright to the computer program(s) herein
 * is the property of Exigen Group, USA. All rights reserved.
 * The program(s) may be used and/or copied only with
 * the written permission of Exigen Group
 * or in accordance with the terms and conditions
 * stipulated in the agreement/contract under which
 * the program(s) have been supplied.
 */
///////////////////////////////////////////////////////////////////////////////

/**
 * An interface for the undoable object.
 */
public interface Undoable extends ConstrainerObject
{
  /**
   * Returns true if undo operation was performed.
   */
  public boolean undone();

  /**
   * Sets 'undone' state for this undoable object.
   */
  public void undone(boolean b);

//  /**
//   *
//   */
//  public void restored();

  /**
   * Creates Undo-object for this undoable object.
   */
  public Undo createUndo();

  /**
   * Creates Undo-object for this undoable object
   * and adds it to the constrainer's undo-stack.
   */
  public void addUndo();

} // ~Undoable




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