at.gridtec.lambda4j.operator.binary.ShortBinaryOperator.java Source code

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/*
 * Copyright (c) 2016 Gridtec. 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 at.gridtec.lambda4j.operator.binary;

import at.gridtec.lambda4j.Lambda;
import at.gridtec.lambda4j.consumer.ShortConsumer;
import at.gridtec.lambda4j.consumer.bi.BiShortConsumer;
import at.gridtec.lambda4j.function.ShortFunction;
import at.gridtec.lambda4j.function.bi.BiShortFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiBooleanToShortFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiByteToShortFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiCharToShortFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiDoubleToShortFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiFloatToShortFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiIntToShortFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiLongToShortFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiShortToByteFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiShortToCharFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiShortToDoubleFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiShortToFloatFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiShortToIntFunction;
import at.gridtec.lambda4j.function.bi.conversion.BiShortToLongFunction;
import at.gridtec.lambda4j.function.bi.to.ToShortBiFunction;
import at.gridtec.lambda4j.function.conversion.BooleanToShortFunction;
import at.gridtec.lambda4j.function.conversion.ByteToShortFunction;
import at.gridtec.lambda4j.function.conversion.CharToShortFunction;
import at.gridtec.lambda4j.function.conversion.DoubleToShortFunction;
import at.gridtec.lambda4j.function.conversion.FloatToShortFunction;
import at.gridtec.lambda4j.function.conversion.IntToShortFunction;
import at.gridtec.lambda4j.function.conversion.LongToShortFunction;
import at.gridtec.lambda4j.function.conversion.ShortToByteFunction;
import at.gridtec.lambda4j.function.conversion.ShortToCharFunction;
import at.gridtec.lambda4j.function.conversion.ShortToDoubleFunction;
import at.gridtec.lambda4j.function.conversion.ShortToFloatFunction;
import at.gridtec.lambda4j.function.conversion.ShortToIntFunction;
import at.gridtec.lambda4j.function.conversion.ShortToLongFunction;
import at.gridtec.lambda4j.function.to.ToShortFunction;
import at.gridtec.lambda4j.operator.unary.ShortUnaryOperator;
import at.gridtec.lambda4j.predicate.ShortPredicate;
import at.gridtec.lambda4j.predicate.bi.BiShortPredicate;

import org.apache.commons.lang3.tuple.Pair;

import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Comparator;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.BinaryOperator;

/**
 * Represents an operation that accepts two {@code short}-valued input arguments and produces a
 * {@code short}-valued result.
 * This is a primitive specialization of {@link BinaryOperator2}.
 * <p>
 * This is a {@link FunctionalInterface} whose functional method is {@link #applyAsShort(short, short)}.
 *
 * @see BinaryOperator2
 */
@SuppressWarnings("unused")
@FunctionalInterface
public interface ShortBinaryOperator extends Lambda {

    /**
     * Constructs a {@link ShortBinaryOperator} based on a lambda expression or a method reference. Thereby the given
     * lambda expression or method reference is returned on an as-is basis to implicitly transform it to the desired
     * type. With this method, it is possible to ensure that correct type is used from lambda expression or method
     * reference.
     *
     * @param expression A lambda expression or (typically) a method reference, e.g. {@code this::method}
     * @return A {@code ShortBinaryOperator} from given lambda expression or method reference.
     * @implNote This implementation allows the given argument to be {@code null}, but only if {@code null} given,
     * {@code null} will be returned.
     * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/lambdaexpressions.html#syntax">Lambda
     * Expression</a>
     * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/methodreferences.html">Method Reference</a>
     */
    static ShortBinaryOperator of(@Nullable final ShortBinaryOperator expression) {
        return expression;
    }

    /**
     * Calls the given {@link ShortBinaryOperator} with the given arguments and returns its result.
     *
     * @param operator The operator to be called
     * @param value1 The first argument to the operator
     * @param value2 The second argument to the operator
     * @return The result from the given {@code ShortBinaryOperator}.
     * @throws NullPointerException If given argument is {@code null}
     */
    static short call(@Nonnull final ShortBinaryOperator operator, short value1, short value2) {
        Objects.requireNonNull(operator);
        return operator.applyAsShort(value1, value2);
    }

    /**
     * Creates a {@link ShortBinaryOperator} which uses the {@code first} parameter of this one as argument for the
     * given {@link ShortUnaryOperator}.
     *
     * @param operator The operator which accepts the {@code first} parameter of this one
     * @return Creates a {@code ShortBinaryOperator} which uses the {@code first} parameter of this one as argument for
     * the given {@code ShortUnaryOperator}.
     * @throws NullPointerException If given argument is {@code null}
     */
    @Nonnull
    static ShortBinaryOperator onlyFirst(@Nonnull final ShortUnaryOperator operator) {
        Objects.requireNonNull(operator);
        return (value1, value2) -> operator.applyAsShort(value1);
    }

    /**
     * Creates a {@link ShortBinaryOperator} which uses the {@code second} parameter of this one as argument for the
     * given {@link ShortUnaryOperator}.
     *
     * @param operator The operator which accepts the {@code second} parameter of this one
     * @return Creates a {@code ShortBinaryOperator} which uses the {@code second} parameter of this one as argument for
     * the given {@code ShortUnaryOperator}.
     * @throws NullPointerException If given argument is {@code null}
     */
    @Nonnull
    static ShortBinaryOperator onlySecond(@Nonnull final ShortUnaryOperator operator) {
        Objects.requireNonNull(operator);
        return (value1, value2) -> operator.applyAsShort(value2);
    }

    /**
     * Creates a {@link ShortBinaryOperator} which always returns a given value.
     *
     * @param ret The return value for the constant
     * @return A {@code ShortBinaryOperator} which always returns a given value.
     */
    @Nonnull
    static ShortBinaryOperator constant(short ret) {
        return (value1, value2) -> ret;
    }

    /**
     * Returns a {@link ShortBinaryOperator} which returns the lesser of two elements according to the specified {@code
     * Comparator}.
     *
     * @param comparator A {@code Comparator} for comparing the two values
     * @return A {@code ShortBinaryOperator} which returns the lesser of its operands, according to the supplied {@code
     * Comparator}.
     * @throws NullPointerException If given argument is {@code null}
     * @see BinaryOperator#minBy(Comparator)
     */
    @Nonnull
    static ShortBinaryOperator minBy(@Nonnull final Comparator<Short> comparator) {
        Objects.requireNonNull(comparator);
        return (value1, value2) -> comparator.compare(value1, value2) <= 0 ? value1 : value2;
    }

    /**
     * Returns a {@link ShortBinaryOperator} which returns the greater of two elements according to the specified {@code
     * Comparator}.
     *
     * @param comparator A {@code Comparator} for comparing the two values
     * @return A {@code ShortBinaryOperator} which returns the greater of its operands, according to the supplied {@code
     * Comparator}.
     * @throws NullPointerException If given argument is {@code null}
     * @see BinaryOperator#maxBy(Comparator)
     */
    @Nonnull
    static ShortBinaryOperator maxBy(@Nonnull final Comparator<Short> comparator) {
        Objects.requireNonNull(comparator);
        return (value1, value2) -> comparator.compare(value1, value2) >= 0 ? value1 : value2;
    }

    /**
     * Applies this operator to the given arguments.
     *
     * @param value1 The first argument to the operator
     * @param value2 The second argument to the operator
     * @return The return value from the operator, which is its result.
     */
    short applyAsShort(short value1, short value2);

    /**
     * Applies this operator partially to some arguments of this one, producing a {@link ShortUnaryOperator} as result.
     *
     * @param value1 The first argument to this operator used to partially apply this function
     * @return A {@code ShortUnaryOperator} that represents this operator partially applied the some arguments.
     */
    @Nonnull
    default ShortUnaryOperator papplyAsShort(short value1) {
        return (value2) -> this.applyAsShort(value1, value2);
    }

    /**
     * Returns the number of arguments for this operator.
     *
     * @return The number of arguments for this operator.
     * @implSpec The default implementation always returns {@code 2}.
     */
    @Nonnegative
    default int arity() {
        return 2;
    }

    /**
     * Returns a composed {@link ToShortBiFunction} that first applies the {@code before} functions to its input, and
     * then applies this operator to the result.
     * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
     *
     * @param <A> The type of the argument to the first given function, and of composed function
     * @param <B> The type of the argument to the second given function, and of composed function
     * @param before1 The first function to apply before this operator is applied
     * @param before2 The second function to apply before this operator is applied
     * @return A composed {@code ToShortBiFunction} that first applies the {@code before} functions to its input, and
     * then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is able to handle every type.
     */
    @Nonnull
    default <A, B> ToShortBiFunction<A, B> compose(@Nonnull final ToShortFunction<? super A> before1,
            @Nonnull final ToShortFunction<? super B> before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (a, b) -> applyAsShort(before1.applyAsShort(a), before2.applyAsShort(b));
    }

    /**
     * Returns a composed {@link BiBooleanToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result. If evaluation of either operation throws an exception, it is
     * relayed to the caller of the composed operation. This method is just convenience, to provide the ability to
     * execute an operation which accepts {@code boolean} input, before this primitive operator is executed.
     *
     * @param before1 The first function to apply before this operator is applied
     * @param before2 The second function to apply before this operator is applied
     * @return A composed {@code BiBooleanToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
     * boolean}.
     */
    @Nonnull
    default BiBooleanToShortFunction composeFromBoolean(@Nonnull final BooleanToShortFunction before1,
            @Nonnull final BooleanToShortFunction before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (value1, value2) -> applyAsShort(before1.applyAsShort(value1), before2.applyAsShort(value2));
    }

    /**
     * Returns a composed {@link BiByteToShortFunction} that first applies the {@code before} functions to
     * its input, and then applies this operator to the result.
     * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
     * This method is just convenience, to provide the ability to execute an operation which accepts {@code byte} input,
     * before this primitive operator is executed.
     *
     * @param before1 The first function to apply before this operator is applied
     * @param before2 The second function to apply before this operator is applied
     * @return A composed {@code BiByteToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
     * byte}.
     */
    @Nonnull
    default BiByteToShortFunction composeFromByte(@Nonnull final ByteToShortFunction before1,
            @Nonnull final ByteToShortFunction before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (value1, value2) -> applyAsShort(before1.applyAsShort(value1), before2.applyAsShort(value2));
    }

    /**
     * Returns a composed {@link BiCharToShortFunction} that first applies the {@code before} functions to
     * its input, and then applies this operator to the result.
     * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
     * This method is just convenience, to provide the ability to execute an operation which accepts {@code char} input,
     * before this primitive operator is executed.
     *
     * @param before1 The first function to apply before this operator is applied
     * @param before2 The second function to apply before this operator is applied
     * @return A composed {@code BiCharToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
     * char}.
     */
    @Nonnull
    default BiCharToShortFunction composeFromChar(@Nonnull final CharToShortFunction before1,
            @Nonnull final CharToShortFunction before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (value1, value2) -> applyAsShort(before1.applyAsShort(value1), before2.applyAsShort(value2));
    }

    /**
     * Returns a composed {@link BiDoubleToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result. If evaluation of either operation throws an exception, it is
     * relayed to the caller of the composed operation. This method is just convenience, to provide the ability to
     * execute an operation which accepts {@code double} input, before this primitive operator is executed.
     *
     * @param before1 The first function to apply before this operator is applied
     * @param before2 The second function to apply before this operator is applied
     * @return A composed {@code BiDoubleToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
     * double}.
     */
    @Nonnull
    default BiDoubleToShortFunction composeFromDouble(@Nonnull final DoubleToShortFunction before1,
            @Nonnull final DoubleToShortFunction before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (value1, value2) -> applyAsShort(before1.applyAsShort(value1), before2.applyAsShort(value2));
    }

    /**
     * Returns a composed {@link BiFloatToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result. If evaluation of either operation throws an exception, it is
     * relayed to the caller of the composed operation. This method is just convenience, to provide the ability to
     * execute an operation which accepts {@code float} input, before this primitive operator is executed.
     *
     * @param before1 The first function to apply before this operator is applied
     * @param before2 The second function to apply before this operator is applied
     * @return A composed {@code BiFloatToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
     * float}.
     */
    @Nonnull
    default BiFloatToShortFunction composeFromFloat(@Nonnull final FloatToShortFunction before1,
            @Nonnull final FloatToShortFunction before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (value1, value2) -> applyAsShort(before1.applyAsShort(value1), before2.applyAsShort(value2));
    }

    /**
     * Returns a composed {@link BiIntToShortFunction} that first applies the {@code before} functions to
     * its input, and then applies this operator to the result.
     * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
     * This method is just convenience, to provide the ability to execute an operation which accepts {@code int} input,
     * before this primitive operator is executed.
     *
     * @param before1 The first function to apply before this operator is applied
     * @param before2 The second function to apply before this operator is applied
     * @return A composed {@code BiIntToShortFunction} that first applies the {@code before} functions to its input, and
     * then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
     * int}.
     */
    @Nonnull
    default BiIntToShortFunction composeFromInt(@Nonnull final IntToShortFunction before1,
            @Nonnull final IntToShortFunction before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (value1, value2) -> applyAsShort(before1.applyAsShort(value1), before2.applyAsShort(value2));
    }

    /**
     * Returns a composed {@link BiLongToShortFunction} that first applies the {@code before} functions to
     * its input, and then applies this operator to the result.
     * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
     * This method is just convenience, to provide the ability to execute an operation which accepts {@code long} input,
     * before this primitive operator is executed.
     *
     * @param before1 The first function to apply before this operator is applied
     * @param before2 The second function to apply before this operator is applied
     * @return A composed {@code BiLongToShortFunction} that first applies the {@code before} functions to its input,
     * and then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
     * long}.
     */
    @Nonnull
    default BiLongToShortFunction composeFromLong(@Nonnull final LongToShortFunction before1,
            @Nonnull final LongToShortFunction before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (value1, value2) -> applyAsShort(before1.applyAsShort(value1), before2.applyAsShort(value2));
    }

    /**
     * Returns a composed {@link ShortBinaryOperator} that first applies the {@code before} operators to its input, and
     * then applies this operator to the result. If evaluation of either operation throws an exception, it is relayed to
     * the caller of the composed operation. This method is just convenience, to provide the ability to execute an
     * operation which accepts {@code short} input, before this primitive operator is executed.
     *
     * @param before1 The first operator to apply before this operator is applied
     * @param before2 The second operator to apply before this operator is applied
     * @return A composed {@code ShortBinaryOperator} that first applies the {@code before} operators to its input, and
     * then applies this operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to handle primitive values. In this case this is {@code
     * short}.
     */
    @Nonnull
    default ShortBinaryOperator composeFromShort(@Nonnull final ShortUnaryOperator before1,
            @Nonnull final ShortUnaryOperator before2) {
        Objects.requireNonNull(before1);
        Objects.requireNonNull(before2);
        return (value1, value2) -> applyAsShort(before1.applyAsShort(value1), before2.applyAsShort(value2));
    }

    /**
     * Returns a composed {@link BiShortFunction} that first applies this operator to its input, and then applies the
     * {@code after} function to the result.
     * If evaluation of either operation throws an exception, it is relayed to the caller of the composed operation.
     *
     * @param <S> The type of return value from the {@code after} function, and of the composed function
     * @param after The function to apply after this operator is applied
     * @return A composed {@code BiShortFunction} that first applies this operator to its input, and then applies the
     * {@code after} function to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is able to return every type.
     */
    @Nonnull
    default <S> BiShortFunction<S> andThen(@Nonnull final ShortFunction<? extends S> after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.apply(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link BiShortPredicate} that first applies this operator to its input, and then applies the
     * {@code after} predicate to the result. If evaluation of either operation throws an exception, it is relayed to
     * the caller of the composed operation. This method is just convenience, to provide the ability to transform this
     * primitive operator to an operation returning {@code boolean}.
     *
     * @param after The predicate to apply after this operator is applied
     * @return A composed {@code BiShortPredicate} that first applies this operator to its input, and then applies the
     * {@code after} predicate to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to return primitive values. In this case this is {@code
     * boolean}.
     */
    @Nonnull
    default BiShortPredicate andThenToBoolean(@Nonnull final ShortPredicate after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.test(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link BiShortToByteFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result. If evaluation of either operation throws an exception, it is relayed to
     * the caller of the composed operation. This method is just convenience, to provide the ability to transform this
     * primitive operator to an operation returning {@code byte}.
     *
     * @param after The function to apply after this operator is applied
     * @return A composed {@code BiShortToByteFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to return primitive values. In this case this is {@code
     * byte}.
     */
    @Nonnull
    default BiShortToByteFunction andThenToByte(@Nonnull final ShortToByteFunction after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.applyAsByte(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link BiShortToCharFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result. If evaluation of either operation throws an exception, it is relayed to
     * the caller of the composed operation. This method is just convenience, to provide the ability to transform this
     * primitive operator to an operation returning {@code char}.
     *
     * @param after The function to apply after this operator is applied
     * @return A composed {@code BiShortToCharFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to return primitive values. In this case this is {@code
     * char}.
     */
    @Nonnull
    default BiShortToCharFunction andThenToChar(@Nonnull final ShortToCharFunction after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.applyAsChar(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link BiShortToDoubleFunction} that first applies this operator to its input, and then
     * applies the {@code after} function to the result. If evaluation of either operation throws an exception, it is
     * relayed to the caller of the composed operation. This method is just convenience, to provide the ability to
     * transform this primitive operator to an operation returning {@code double}.
     *
     * @param after The function to apply after this operator is applied
     * @return A composed {@code BiShortToDoubleFunction} that first applies this operator to its input, and then
     * applies the {@code after} function to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to return primitive values. In this case this is {@code
     * double}.
     */
    @Nonnull
    default BiShortToDoubleFunction andThenToDouble(@Nonnull final ShortToDoubleFunction after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.applyAsDouble(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link BiShortToFloatFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result. If evaluation of either operation throws an exception, it is relayed to
     * the caller of the composed operation. This method is just convenience, to provide the ability to transform this
     * primitive operator to an operation returning {@code float}.
     *
     * @param after The function to apply after this operator is applied
     * @return A composed {@code BiShortToFloatFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to return primitive values. In this case this is {@code
     * float}.
     */
    @Nonnull
    default BiShortToFloatFunction andThenToFloat(@Nonnull final ShortToFloatFunction after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.applyAsFloat(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link BiShortToIntFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result. If evaluation of either operation throws an exception, it is relayed to
     * the caller of the composed operation. This method is just convenience, to provide the ability to transform this
     * primitive operator to an operation returning {@code int}.
     *
     * @param after The function to apply after this operator is applied
     * @return A composed {@code BiShortToIntFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to return primitive values. In this case this is {@code
     * int}.
     */
    @Nonnull
    default BiShortToIntFunction andThenToInt(@Nonnull final ShortToIntFunction after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.applyAsInt(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link BiShortToLongFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result. If evaluation of either operation throws an exception, it is relayed to
     * the caller of the composed operation. This method is just convenience, to provide the ability to transform this
     * primitive operator to an operation returning {@code long}.
     *
     * @param after The function to apply after this operator is applied
     * @return A composed {@code BiShortToLongFunction} that first applies this operator to its input, and then applies
     * the {@code after} function to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to return primitive values. In this case this is {@code
     * long}.
     */
    @Nonnull
    default BiShortToLongFunction andThenToLong(@Nonnull final ShortToLongFunction after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.applyAsLong(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link ShortBinaryOperator} that first applies this operator to its input, and then applies
     * the {@code after} operator to the result. If evaluation of either operation throws an exception, it is relayed to
     * the caller of the composed operation. This method is just convenience, to provide the ability to transform this
     * primitive operator to an operation returning {@code short}.
     *
     * @param after The operator to apply after this operator is applied
     * @return A composed {@code ShortBinaryOperator} that first applies this operator to its input, and then applies
     * the {@code after} operator to the result.
     * @throws NullPointerException If given argument is {@code null}
     * @implSpec The input argument of this method is a able to return primitive values. In this case this is {@code
     * short}.
     */
    @Nonnull
    default ShortBinaryOperator andThenToShort(@Nonnull final ShortUnaryOperator after) {
        Objects.requireNonNull(after);
        return (value1, value2) -> after.applyAsShort(applyAsShort(value1, value2));
    }

    /**
     * Returns a composed {@link BiShortConsumer} that fist applies this operator to its input, and then consumes the
     * result using the given {@link ShortConsumer}. If evaluation of either operation throws an exception, it is
     * relayed to the caller of the composed operation.
     *
     * @param consumer The operation which consumes the result from this operation
     * @return A composed {@code BiShortConsumer} that first applies this operator to its input, and then consumes the
     * result using the given {@code ShortConsumer}.
     * @throws NullPointerException If given argument is {@code null}
     */
    @Nonnull
    default BiShortConsumer consume(@Nonnull final ShortConsumer consumer) {
        Objects.requireNonNull(consumer);
        return (value1, value2) -> consumer.accept(applyAsShort(value1, value2));
    }

    /**
     * Returns a memoized (caching) version of this {@link ShortBinaryOperator}. Whenever it is called, the mapping
     * between the input parameters and the return value is preserved in a cache, making subsequent calls returning the
     * memoized value instead of computing the return value again.
     * <p>
     * Unless the operator and therefore the used cache will be garbage-collected, it will keep all memoized values
     * forever.
     *
     * @return A memoized (caching) version of this {@code ShortBinaryOperator}.
     * @implSpec This implementation does not allow the input parameters or return value to be {@code null} for the
     * resulting memoized operator, as the cache used internally does not permit {@code null} keys or values.
     * @implNote The returned memoized operator can be safely used concurrently from multiple threads which makes it
     * thread-safe.
     */
    @Nonnull
    default ShortBinaryOperator memoized() {
        if (isMemoized()) {
            return this;
        } else {
            final Map<Pair<Short, Short>, Short> cache = new ConcurrentHashMap<>();
            final Object lock = new Object();
            return (ShortBinaryOperator & Memoized) (value1, value2) -> {
                final short returnValue;
                synchronized (lock) {
                    returnValue = cache.computeIfAbsent(Pair.of(value1, value2),
                            key -> applyAsShort(key.getLeft(), key.getRight()));
                }
                return returnValue;
            };
        }
    }

    /**
     * Returns a composed {@link BinaryOperator2} which represents this {@link ShortBinaryOperator}. Thereby the
     * primitive input argument for this operator is autoboxed. This method provides the possibility to use this {@code
     * ShortBinaryOperator} with methods provided by the {@code JDK}.
     *
     * @return A composed {@code BinaryOperator2} which represents this {@code ShortBinaryOperator}.
     */
    @Nonnull
    default BinaryOperator2<Short> boxed() {
        return this::applyAsShort;
    }

}