/*
* @(#)ReverseListEnumerator.java
*
* Project: JHotdraw - a GUI framework for technical drawings
* http://www.jhotdraw.org
* http://jhotdraw.sourceforge.net
* Copyright: (c) by the original author(s) and all contributors
* License: Lesser GNU Public License (LGPL)
* http://www.opensource.org/licenses/lgpl-license.html
*/
package org.jhotdraw.util;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Iterator;
/**
* An Enumeration that enumerates a list back (size-1) to front (0).
*
* @version <$CURRENT_VERSION$>
*/
public class ReverseListEnumerator implements Iterator {
private List myList;
private int count;
public ReverseListEnumerator(List l) {
myList = l;
count = myList.size() - 1;
}
public boolean hasNext() {
return count >= 0;
}
public Object next() {
if (count >= 0) {
return myList.get(count--);
}
throw new NoSuchElementException("ReverseListEnumerator");
}
public void remove() {
myList.remove(count);
count--;
}
}