1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.tv.util; 18 19 import java.util.Comparator; 20 21 /** 22 * A comparator which runs multiple comparators sequentially. 23 */ 24 public class CompositeComparator<T> implements Comparator<T> { 25 private final Comparator<T>[] mComparators; 26 27 @SafeVarargs CompositeComparator(Comparator<T>.... comparators)28 public CompositeComparator(Comparator<T>... comparators) { 29 mComparators = comparators; 30 } 31 32 @Override compare(T lhs, T rhs)33 public int compare(T lhs, T rhs) { 34 for (Comparator<T> comparator : mComparators) { 35 int result = comparator.compare(lhs, rhs); 36 if (result != 0) { 37 return result; 38 } 39 } 40 return 0; 41 } 42 } 43