/*
 * Copyright 2009-2013 Yuichiro Moriguchi
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.morilib.sh.misc;

import java.util.Iterator;

/**
 * This is an iterator which keeps previous results.
 * <p>反復した前の要素を1つ以上保存するiteratorである.
 * 
 * @author MORIGUCHI, Yuichiro 2005/10/21
 */
public interface LookaheadIterator<E> extends Iterator<E> {
	
	/**
	 * gets the element pointed by this iterator.
	 * <p>Iteratorの指し示す現在の要素を得る.
	 */
	public E peek();

}
