org.springframework.core.annotation

Interface MergedAnnotationSelector<A extends Annotation>

Type Parameters:

A - the annotation type

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface MergedAnnotationSelector<A extends Annotation>

Strategy interface used to select between two MergedAnnotation instances.

Since:

5.2

Author:

Phillip Webb

See Also:

MergedAnnotationSelectors

Method Summary

Modifier and Type	Method and Description
default boolean	isBestCandidate(MergedAnnotation<A> annotation) Determine if the existing annotation is known to be the best candidate and any subsequent selections may be skipped.
MergedAnnotation<A>	select(MergedAnnotation<A> existing, MergedAnnotation<A> candidate) Select the annotation that should be used.

Method Detail

isBestCandidate

default boolean isBestCandidate(MergedAnnotation<A> annotation)

Determine if the existing annotation is known to be the best candidate and any subsequent selections may be skipped.

Parameters:

annotation - the annotation to check

Returns:

true if the annotation is known to be the best candidate

select

MergedAnnotation<A> select(MergedAnnotation<A> existing,
                           MergedAnnotation<A> candidate)

Select the annotation that should be used.

Parameters:

existing - an existing annotation returned from an earlier result

candidate - a candidate annotation that may be better suited

Returns:

the most appropriate annotation from the existing or candidate