/*
* @(#)ReverseVectorEnumerator.java
*
* Project: JHotdraw - a GUI framework for technical drawings
* http://www.jhotdraw.org
* http://jhotdraw.sourceforge.net
* Copyright: � by the original author(s) and all contributors
* License: Lesser GNU Public License (LGPL)
* http://www.opensource.org/licenses/lgpl-license.html
*/
package CH.ifa.draw.util;
import java.util.*;
/**
* An Enumeration that enumerates a vector back (size-1) to front (0).
*
* @version <$CURRENT_VERSION$>
*/
public class ReverseVectorEnumerator implements Enumeration {
private Vector vector;
private int count;
public ReverseVectorEnumerator(Vector v) {
vector = v;
count = vector.size() - 1;
}
public boolean hasMoreElements() {
return count >= 0;
}
public Object nextElement() {
if (count >= 0) {
return vector.elementAt(count--);
}
throw new NoSuchElementException("ReverseVectorEnumerator");
}
}