Package io.micronaut.inject.annotation

Interface AnnotationMapper<T extends Annotation>

Type Parameters:
T - The annotation type
All Known Subinterfaces:
NamedAnnotationMapper, TypedAnnotationMapper<T>
All Known Implementing Classes:
EntityIntrospectedAnnotationMapper, EntityReflectiveAccessAnnotationMapper, InterceptorBeanMapper, JakartaEntityIntrospectedAnnotationMapper, JakartaMappedSuperClassIntrospectionMapper, JakartaPersistenceContextAnnotationMapper, JavaxPersistenceContextAnnotationMapper, JsonCreatorAnnotationMapper, MappedSuperClassIntrospectionMapper
public interface AnnotationMapper<T extends Annotation>
An AnnotationMapper is a type that is capable of mapping a given annotation to one or many annotations at compile time.

Use cases include if you wish to support different annotation types or specifications but wish to map them a common internal annotation annotation.

For example to support the JPA spec you may wish to map the PersistenceContext annotation to one or many other internal annotations with relying specifically on the JPA specification.

AnnotationMapper instances can be registered with the service loader pattern via META-INF/services and will be picked up at compile time and should implement either NamedAnnotationMapper or TypedAnnotationMapper

Since:
1.0
Author:
graemerocher
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    List<AnnotationValue<?>>
    map(AnnotationValue<T> annotation, VisitorContext visitorContext)
    The map method will be called for each instances of the annotation returned via this method.

  • Method Details

    • map

      List<AnnotationValue<?>> map(AnnotationValue<T> annotation, VisitorContext visitorContext)
      The map method will be called for each instances of the annotation returned via this method.
      Parameters:
      annotation - The annotation values
      visitorContext - The context that is being visited
      Returns:
      A list of zero or many annotations and values to map to