org.wildfly.common.function.ExceptionBiFunction Maven / Gradle / Ivy
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
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*
* 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,
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*/
package org.wildfly.common.function;
import org.wildfly.common.Assert;
/**
* A two-argument function which can throw an exception.
*
* @author David M. Lloyd
*/
@FunctionalInterface
public interface ExceptionBiFunction {
/**
* Applies this function to the given arguments.
*
* @param t the first argument
* @param u the second argument
* @return the function result
* @throws E if an exception occurs
*/
R apply(T t, U u) throws E;
default ExceptionBiFunction andThen(ExceptionFunction after) {
Assert.checkNotNullParam("after", after);
return (t, u) -> after.apply(apply(t, u));
}
default ExceptionBiConsumer andThen(ExceptionConsumer after) {
Assert.checkNotNullParam("after", after);
return (t, u) -> after.accept(apply(t, u));
}
default ExceptionSupplier compose(ExceptionSupplier before1, ExceptionSupplier before2) {
Assert.checkNotNullParam("before1", before1);
Assert.checkNotNullParam("before2", before2);
return () -> apply(before1.get(), before2.get());
}
}