NullIterator.java

/*
 ***************************************************************************************
 *  Copyright (C) 2006 EsperTech, Inc. All rights reserved.                            *
 *  http://www.espertech.com/esper                                                     *
 *  http://www.espertech.com                                                           *
 *  ---------------------------------------------------------------------------------- *
 *  The software in this package is published under the terms of the GPL license       *
 *  a copy of which has been included with this distribution in the license.txt file.  *
 ***************************************************************************************
 */
package com.espertech.esper.collection;

import java.util.Iterator;
import java.util.NoSuchElementException;

/**
 * Iterator that never returns an elements.
 */
public class NullIterator<T> implements Iterator<T> {
    public boolean hasNext() {
        return false;
    }

    public T next() {
        throw new NoSuchElementException();
    }

    public void remove() {
        throw new UnsupportedOperationException();
    }
}