/******************************************************************************* * Copyright 2010 Cees De Groot, Alex Boisvert, Jan Kotek * * 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 de.mxro.thrd.jdbm2V22.helper; import java.io.Serializable; import java.util.Comparator; /** * * Compares comparables. Default comparator for most of java types * * @author Jan Kotek * * @param <A> */ @SuppressWarnings("unchecked") public class ComparableComparator<A extends Comparable> implements Comparator<A>,Serializable { /** use this instance, dont allocate new*/ public final static Comparator INSTANCE = new ComparableComparator(); private static final long serialVersionUID = 1678377822276476166L; /** everyone should use INSTANCE*/ private ComparableComparator(){}; public int compare(Comparable o1, Comparable o2) { return o1.compareTo(o2); } }