/*
* This file is part of the Wayback archival access software
* (http://archive-access.sourceforge.net/projects/wayback/).
*
* Licensed to the Internet Archive (IA) by one or more individual
* contributors.
*
* The IA licenses this file to You 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 org.archive.wayback.util.iterator;
import java.util.Comparator;
/**
* @author brad
*
* @param <J> type found in Iterators
*/
public class PeekableIteratorComparator<J> implements Comparator<IPeekableIterator<J>> {
private Comparator<J> comparator = null;
/**
* @param comparator to compare the iterators
*/
public PeekableIteratorComparator(Comparator<J> comparator) {
this.comparator = comparator;
}
public int compare(IPeekableIterator<J> o1, IPeekableIterator<J> o2) {
return comparator.compare(o1.peek(), o2.peek());
}
public static <K> Comparator<IPeekableIterator<K>> getComparator(Comparator<K> comparator) {
return new PeekableIteratorComparator<K>(comparator);
}
}