com.hazelcast.function.BinaryOperatorEx Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2021, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.function;
import com.hazelcast.internal.util.ExceptionUtil;
import java.io.Serializable;
import java.util.Comparator;
import java.util.function.BinaryOperator;
import static com.hazelcast.internal.util.Preconditions.checkNotNull;
/**
* {@code Serializable} variant of {@link BinaryOperator
* java.util.function.BinaryOperator} which declares checked exception.
*
* @param the type of the operands and result of the operator
*
* @since 4.0
*/
@FunctionalInterface
public interface BinaryOperatorEx extends BinaryOperator, Serializable {
/**
* Exception-declaring version of {@link BinaryOperator#apply}.
* @throws Exception in case of any exceptional case
*/
T applyEx(T t1, T t2) throws Exception;
@Override
default T apply(T t1, T t2) {
try {
return applyEx(t1, t2);
} catch (Exception e) {
throw ExceptionUtil.sneakyThrow(e);
}
}
/**
* {@code Serializable} variant of {@link
* BinaryOperator#minBy(Comparator) java.util.function.BinaryOperator#minBy(Comparator)}.
* @param the type of the input arguments of the comparator
*/
static BinaryOperatorEx minBy(Comparator comparator) {
checkNotNull(comparator, "comparator");
return (l, r) -> comparator.compare(l, r) <= 0 ? l : r;
}
/**
* {@code Serializable} variant of {@link
* BinaryOperator#maxBy(Comparator) java.util.function.BinaryOperator#maxBy(Comparator)}.
* @param the type of the input arguments of the comparator
*/
static BinaryOperatorEx maxBy(Comparator comparator) {
checkNotNull(comparator, "comparator");
return (l, r) -> comparator.compare(l, r) >= 0 ? l : r;
}
}