// $Id: eclipse-argo-codetemplates.xml 11347 2006-10-26 22:37:44Z linus $
// Copyright (c) 2007 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies. This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason. IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
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// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
package org.argouml.util;
import java.util.Iterator;
import java.util.NoSuchElementException;
/**
* A simple iterator wrapper for a single object. Designed for for use where the
* API requires an iterator, but we've only got a single object and don't want
* the overhead of creating a collection just so that we can iterate over its
* single element.
*
* @param <T> type of object to be iterated over
* @author Tom Morris <tfmorris@gmail.com>
*/
public class SingleElementIterator<T> implements Iterator {
private boolean done = false;
private T target;
public SingleElementIterator(T o) {
target = o;
}
public boolean hasNext() {
if (!done) {
return true;
}
return false;
}
public T next() {
if (!done) {
done = true;
return target;
}
throw new NoSuchElementException();
}
public void remove() {
throw new UnsupportedOperationException();
}
}