source: trunk/quest-core-tasktrees/src/main/java/de/ugoe/cs/quest/tasktrees/nodeequality/NodeIdentityRule.java @ 439

//-------------------------------------------------------------------------------------------------
// Module    : $RCSfile: NodeIdentityRule.java,v $
// Version   : $Revision: 0.0 $  $Author: patrick $  $Date: 19.02.2012 $
// Project   : TaskTreeCreator
// Creation  : 2012 by patrick
// Copyright : Patrick Harms, 2012
//-------------------------------------------------------------------------------------------------
package de.ugoe.cs.quest.tasktrees.nodeequality;

import de.ugoe.cs.quest.tasktrees.treeifc.TaskTreeNode;

//-------------------------------------------------------------------------------------------------
/**
 * TODO comment
 * 
 * @version $Revision: $ $Date: 19.02.2012$
 * @author 2012, last modified by $Author: patrick$
 */
//-------------------------------------------------------------------------------------------------
public class NodeIdentityRule implements NodeComparisonRule
{

  //-----------------------------------------------------------------------------------------------
  /* (non-Javadoc)
   * @see de.ugoe.cs.tasktree.nodeequality.NodeEqualityRule#apply(TaskTreeNode, TaskTreeNode)
   */
  //-----------------------------------------------------------------------------------------------
  @Override
  public NodeEquality compare(TaskTreeNode node1, TaskTreeNode node2)
  {
    if (node1 == node2)
    {
      return new NodesIdentical();
    }
    else if ((node1 != null) && (node1.equals(node2)))
    {
      return new NodesEqual();
    }
    else
    {
      return null;
    }
  }

}