src/com/android/tv/util/CompositeComparator.java


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/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * 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.android.tv.util;

import java.util.Comparator;

/**
 * A comparator which runs multiple comparators sequentially.
 */
public class CompositeComparator<T> implements Comparator<T> {
    private final Comparator<T>[] mComparators;

    @SafeVarargs
    public CompositeComparator(Comparator<T>... comparators) {
        mComparators = comparators;
    }

    @Override
    public int compare(T lhs, T rhs) {
        for (Comparator<T> comparator : mComparators) {
            int result = comparator.compare(lhs, rhs);
            if (result != 0) {
                return result;
            }
        }
        return 0;
    }
}