/*
 * Corbit, a text analyzer
 * 
 * Copyright (c) 2010-2012, Jun Hatori
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the names of the authors nor the names of its contributors
 *       may be used to endorse or promote products derived from this
 *       software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package corbit.commons.util;

import java.util.Iterator;

public class PairEnum<T1, T2> implements Iterator<Pair<T1,T2>> {
	Iterator<T1> en1;
	Iterator<T2> en2;

	public PairEnum(Iterator<T1> e1, Iterator<T2> e2) {
		en1 = e1;
		en2 = e2;
	}

	public PairEnum(Iterable<T1> e1, Iterable<T2> e2) {
		en1 = e1.iterator();
		en2 = e2.iterator();
	}

	@Override
	public boolean hasNext() {
		return en1.hasNext() && en2.hasNext();
	}

	@Override
	public Pair<T1,T2> next() {
		return new Pair<T1,T2>(en1.next(), en2.next());
	}

	@Override
	public void remove() {
		// TODO Auto-generated method stub
	}
}
