| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF 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.apache.cassandra.utils; |
| |
| import java.util.Comparator; |
| |
| /** |
| * Utility methods linked to comparing comparable values. |
| */ |
| public class Comparables |
| { |
| /** |
| * Returns the maximum of 2 comparable values. On ties, returns the first argument. |
| */ |
| public static <T extends Comparable<? super T>> T max(T a, T b) |
| { |
| return a.compareTo(b) < 0 ? b : a; |
| } |
| |
| /** |
| * Returns the maximum of 2 values given a comparator of those values. On ties, returns the first argument. |
| */ |
| public static <C, T extends C> T max(T a, T b, Comparator<C> comparator) |
| { |
| return comparator.compare(a, b) < 0 ? b : a; |
| } |
| |
| /** |
| * Returns the minimum of 2 comparable values. On ties, returns the first argument. |
| */ |
| public static <T extends Comparable<? super T>> T min(T a, T b) |
| { |
| return a.compareTo(b) > 0 ? b : a; |
| } |
| |
| /** |
| * Returns the minimum of 2 values given a comparator of those values. On ties, returns the first argument. |
| */ |
| public static <C, T extends C> T min(T a, T b, Comparator<C> comparator) |
| { |
| return comparator.compare(a, b) > 0 ? b : a; |
| } |
| } |