NullIterator.java

/**************************************************************************************
 * Copyright (C) 2008 EsperTech, Inc. All rights reserved.                            *
 * http://esper.codehaus.org                                                          *
 * 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 com.espertech.esper.client.EventBean;

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();
    }
}