Example usage for java.util Objects requireNonNull

Introduction

In this page you can find the example usage for java.util Objects requireNonNull.

Prototype

public static <T> T requireNonNull(T obj)

Source Link

Document

Checks that the specified object reference is not null .

Usage

From source file:at.gridtec.lambda4j.function.bi.BiShortFunction.java

/**
 * Lifts a partial {@link BiShortFunction} into a total {@link BiShortFunction} that returns an {@link Optional}
 * result.//from   ww w  .  j a  v  a  2 s  . c om
 *
 * @param <R> The type of return value from the function
 * @param partial A function that is only defined for some values in its domain
 * @return A partial {@code BiShortFunction} lifted into a total {@code BiShortFunction} that returns an {@code
 * Optional} result.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static <R> BiShortFunction<Optional<R>> lift(@Nonnull final BiShortFunction<? extends R> partial) {
    Objects.requireNonNull(partial);
    return (value1, value2) -> Optional.ofNullable(partial.apply(value1, value2));
}

From source file:at.gridtec.lambda4j.function.bi.BiDoubleFunction.java

/**
 * Lifts a partial {@link BiDoubleFunction} into a total {@link BiDoubleFunction} that returns an {@link Optional}
 * result.//from   w  w w  .ja v a 2 s.  c  om
 *
 * @param <R> The type of return value from the function
 * @param partial A function that is only defined for some values in its domain
 * @return A partial {@code BiDoubleFunction} lifted into a total {@code BiDoubleFunction} that returns an {@code
 * Optional} result.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static <R> BiDoubleFunction<Optional<R>> lift(@Nonnull final BiDoubleFunction<? extends R> partial) {
    Objects.requireNonNull(partial);
    return (value1, value2) -> Optional.ofNullable(partial.apply(value1, value2));
}

From source file:at.gridtec.lambda4j.function.tri.TriBooleanFunction.java

/**
 * Lifts a partial {@link TriBooleanFunction} into a total {@link TriBooleanFunction} that returns an {@link
 * Optional} result.//from  w  ww .  ja v  a2  s  .c om
 *
 * @param <R> The type of return value from the function
 * @param partial A function that is only defined for some values in its domain
 * @return A partial {@code TriBooleanFunction} lifted into a total {@code TriBooleanFunction} that returns an
 * {@code Optional} result.
 * @throws NullPointerException If given argument is {@code null}
 */
@Nonnull
static <R> TriBooleanFunction<Optional<R>> lift(@Nonnull final TriBooleanFunction<? extends R> partial) {
    Objects.requireNonNull(partial);
    return (value1, value2, value3) -> Optional.ofNullable(partial.apply(value1, value2, value3));
}

From source file:com.github.alexfalappa.nbspringboot.projects.initializr.InitializrProjectPanelVisual2.java

/**
 * Fixes the boot version of the dependencies.
 * <p>//from w  w w  .  ja  va  2  s. c o  m
 * Does nothing if the panel has not been initialized.
 *
 * @param bootVersion
 */
public void fixBootVersion(String bootVersion) {
    Objects.requireNonNull(bootVersion);
    if (initialized) {
        // substitute combo with label
        javax.swing.GroupLayout layout = (javax.swing.GroupLayout) this.getLayout();
        final JLabel label = new JLabel(bootVersion);
        label.setFont(label.getFont().deriveFont(Font.BOLD));
        layout.replace(cbBootVersion, label);
        // adapt dependencies panel
        pBootDependencies.adaptToBootVersion(bootVersion);
    }
}