58 lines
1.4 KiB
Java
58 lines
1.4 KiB
Java
/*******************************************************************************
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* Copyright (c) 2002 - 2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package com.ibm.wala.util;
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import java.util.Iterator;
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/**
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*
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* An iterator which provides a logical concatenation of the lists from two other iterators
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*
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* @author sfink
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*/
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public class CompoundIterator<T> implements Iterator<T> {
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Iterator<? extends T> A;
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Iterator<? extends T> B;
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/**
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* Constructor for CompoundIterator.
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*/
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public CompoundIterator(Iterator<? extends T> A, Iterator<? extends T> B) {
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this.A = A;
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this.B = B;
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}
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/**
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* @see java.util.Iterator#hasNext()
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*/
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public boolean hasNext() {
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return A.hasNext() || B.hasNext();
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}
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/**
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* @see java.util.Iterator#next()
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*/
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public T next() {
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if (A.hasNext()) {
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return A.next();
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} else {
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return B.next();
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}
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}
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/**
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* @see java.util.Iterator#remove()
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*/
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public void remove() {
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}
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}
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