package org.argeo.slc.client.ui.dist.controllers;
   
   import org.argeo.eclipse.ui.TreeParent;
   import org.eclipse.jface.viewers.IElementComparer;
   
   /** Compares two elements of the Distribution tree */
   public class DistTreeComparer implements IElementComparer {
   
   	public int hashCode(Object element) {
  		if (element instanceof TreeParent)
  			return ((TreeParent) element).hashCode();
  		else
  
  			return element.getClass().toString().hashCode();
  	}
  
  	public boolean equals(Object elementA, Object elementB) {
  		if (!(elementA instanceof TreeParent)
  				|| !(elementB instanceof TreeParent)) {
  			return elementA == null ? elementB == null : elementA
  					.equals(elementB);
  		} else {
  			TreeParent tpA = ((TreeParent) elementA);
  			TreeParent tpB = ((TreeParent) elementB);
  			return tpA.compareTo(tpB) == 0;
  		}
  	}
  }