.0.9.1.source-code.FloatUnaryOperator Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of util Show documentation
Supplementary utilities for classes that belong to java.util, or are considered essential as to justify existence in java.util.
The newest version!
/* Copyright (c) 2019 LibJ
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * You should have received a copy of The MIT License (MIT) along with this
 * program. If not, see .
 */

package org.libj.util.function;

import java.util.Objects;

import javax.annotation.Generated;

/**
 * Represents an operation on a single {@code float}-valued operand that
 * produces a {@code float}-valued result. This is the primitive type
 * specialization of {@link java.util.function.UnaryOperator} for {@code float}.
 *
 * @see java.util.function.UnaryOperator
 */
@FunctionalInterface
@Generated(value="org.openjax.codegen.template.Templates", date="2024-02-27T13:50:20.763")
public interface FloatUnaryOperator {
  /**
   * Applies this operator to the given operand.
   *
   * @param operand The operand.
   * @return The operator result.
   */
  float applyAsFloat(float operand);

  /**
   * Returns a composed operator that first applies the {@code before} operator
   * to its input, and then applies this operator to the result. If evaluation
   * of either operator throws an exception, it is relayed to the caller of the
   * composed operator.
   *
   * @param before The operator to apply before this operator is applied.
   * @return A composed operator that first applies the {@code before} operator
   *         and then applies this operator.
   * @throws NullPointerException If {@code before} is null.
   * @see #andThen(FloatUnaryOperator)
   */
  default FloatUnaryOperator compose(FloatUnaryOperator before) {
    Objects.requireNonNull(before);
    return (float v) -> applyAsFloat(before.applyAsFloat(v));
  }

  /**
   * Returns a composed operator that first applies this operator to its input,
   * and then applies the {@code after} operator to the result. If evaluation of
   * either operator throws an exception, it is relayed to the caller of the
   * composed operator.
   *
   * @param after The operator to apply after this operator is applied.
   * @return A composed operator that first applies this operator and then
   *         applies the {@code after} operator.
   * @throws NullPointerException If {@code after} is null.
   * @see #compose(FloatUnaryOperator)
   */
  default FloatUnaryOperator andThen(FloatUnaryOperator after) {
    Objects.requireNonNull(after);
    return (float t) -> after.applyAsFloat(applyAsFloat(t));
  }

  /**
   * Returns a unary operator that always returns its input argument.
   *
   * @return A unary operator that always returns its input argument.
   */
  static FloatUnaryOperator identity() {
    return t -> t;
  }
}