/*
* © Copyright IBM Corp. 2012-2013
*
* 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 com.ibm.commons.util;
import java.util.Iterator;
import java.util.NoSuchElementException;
/**
* Aggregated iterator.
* <p>
* This Iterator aggregates the content of 2 iterators.
* </p>
* @ibm-api
*/
public final class AggregatedIterator<T> implements Iterator<T> {
private Iterator<T> it1;
private Iterator<T> it2;
/**
* @ibm-api
*/
public AggregatedIterator(Iterator<T> it1, Iterator<T> it2) {
this.it1 = it1;
this.it2 = it2;
}
/**
* @ibm-api
*/
public boolean hasNext() {
if(it1.hasNext()) {
return true;
}
if(it2.hasNext()) {
return true;
}
return false;
}
/**
* @ibm-api
*/
public T next() {
if(it1.hasNext()) {
return it1.next();
}
if(it2.hasNext()) {
return it2.next();
}
throw new NoSuchElementException();
}
/**
* @ibm-api
*/
public void remove() {
throw new UnsupportedOperationException();
}
}