platform/util/src/com/intellij/util/ProxyComparator.java

/*
 * Copyright 2000-2012 JetBrains s.r.o.
 *
 * 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.intellij.util;

import com.intellij.util.containers.Convertor;

import java.util.Comparator;

/**
 * Created with IntelliJ IDEA.
 * User: Irina.Chernushina
 * Date: 6/3/12
 * Time: 2:07 AM
 */
public class ProxyComparator<S extends Comparable<S>,T> implements Comparator<T> {
  private final Convertor<T,S> myConvertor;

  public ProxyComparator(Convertor<T, S> convertor) {
    myConvertor = convertor;
  }

  @Override
  public int compare(T o1, T o2) {
    return myConvertor.convert(o1).compareTo(myConvertor.convert(o2));
  }
}