java.util.function.BinaryOperator Maven / Gradle / Ivy
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/*
* Copyright 2015 Google Inc.
*
* 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 java.util.function;
import java.util.Comparator;
import static javaemul.internal.InternalPreconditions.checkCriticalNotNull;
/**
* See
* the official Java API doc for details.
*
* @param type of both operands and the result
*/
@FunctionalInterface
public interface BinaryOperator extends BiFunction {
static BinaryOperator maxBy(Comparator comparator) {
checkCriticalNotNull(comparator);
return (t, u) -> comparator.compare(t, u) <= 0 ? u : t;
}
static BinaryOperator minBy(Comparator comparator) {
checkCriticalNotNull(comparator);
return (t, u) -> comparator.compare(t, u) <= 0 ? t : u;
}
}