net.florianschoppmann.java.futures.NonNullByDefault Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of java-futures Show documentation

Bridge gaps and help overcome inconveniences with CompletableFuture. This module includes, among other features, methods to collect the results of multiple futures into a list, provides equivalent alternatives to CompletableFuture’s monadic methods (thenApply, thenCompose, etc.) that can deal with checked exceptions, and methods for asynchronous “try-with-resources” constructs.

The newest version!

package net.florianschoppmann.java.futures;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import javax.annotation.Nonnull;
import javax.annotation.meta.TypeQualifierDefault;

/**
 * Annotation to define that all contained entities for which a {@code null} annotation is otherwise lacking should be
 * considered as {@link Nonnull}.
 *
 * This annotation can be applied to all element types.
 */
@TypeQualifierDefault({
    ElementType.ANNOTATION_TYPE,
    ElementType.CONSTRUCTOR,
    ElementType.FIELD,
    ElementType.LOCAL_VARIABLE,
    ElementType.METHOD,
    ElementType.PACKAGE,
    ElementType.PARAMETER,
    ElementType.TYPE
})
@Nonnull
@Retention(RetentionPolicy.RUNTIME)
@interface NonNullByDefault { }