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Specializations and support utilities for functional interfaces that are missing from the standard library

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// SPDX-License-Identifier: Apache-2.0
/*
 * extended-functions
 * Copyright 2021-2024 Marko Zajc
 *
 * 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 org.eu.zajc.ef.tripredicate.except;

import static org.eu.zajc.ef.Utilities.asUnchecked;

import org.eu.zajc.ef.bipredicate.except.EBiPredicate;
import org.eu.zajc.ef.predicate.except.EPredicate;
import org.eu.zajc.ef.tripredicate.TriPredicate;

/**
 * Represents a predicate (boolean-valued function) of two arguments. This is the
 * three-arity specialization of {@link EPredicate}.
 *
 * 
 * Additionally, the functional method is allowed to throw a generic
 * {@link Throwable} of type {@code E}.
 *
 * 
 * This is a functional interface whose functional method is
 * {@link #testChecked(Object, Object, Object)}.
 *
 * @param 
 *            the type of the first argument to the predicate
 * @param 
 *            the type of the second argument the predicate
 * @param 
 *            the type of the third argument to the predicate
 * @param 
 *            {@link Throwable} type
 *
 * @see TriPredicate
 * @see EPredicate
 * @see EBiPredicate
 *
 * @author Marko Zajc
 */
@FunctionalInterface
public interface ETriPredicate extends TriPredicate {

	@Override
	default boolean test(T t, U u, V v) {
		try {
			return testChecked(t, u, v);
		} catch (Throwable e) { // NOSONAR can't catch generic exceptions
			throw asUnchecked(e);
		}
	}

	/**
	 * Same as {@link #test(Object, Object, Object)}, but throws a checked exception.
	 *
	 * @param t
	 *            the first input argument
	 * @param u
	 *            the second input argument
	 * @param v
	 *            the third input argument
	 *
	 * @return {@code true} if the input arguments match the predicate, otherwise
	 *         {@code false}
	 *
	 * @throws E
	 *             the defined exception type
	 */
	boolean testChecked(T t, U u, V v) throws E;

}