org.springframework.core.annotation

Interface AnnotationAttributeExtractor<S>

Type Parameters:

S - the type of source supported by this extractor

All Known Implementing Classes:

AbstractAliasAwareAnnotationAttributeExtractor, DefaultAnnotationAttributeExtractor, MapAnnotationAttributeExtractor

interface AnnotationAttributeExtractor<S>

An AnnotationAttributeExtractor is responsible for extracting annotation attribute values from an underlying source such as an Annotation or a Map.

Since:

4.2

Author:

Sam Brannen

See Also:

SynthesizedAnnotationInvocationHandler

Method Summary

Modifier and Type	Method and Description
java.lang.Object	getAnnotatedElement() Get the element that is annotated with an annotation of the annotation type supported by this extractor.
java.lang.Class<? extends java.lang.annotation.Annotation>	getAnnotationType() Get the type of annotation that this extractor extracts attribute values for.
java.lang.Object	getAttributeValue(java.lang.reflect.Method attributeMethod) Get the attribute value from the underlying source that corresponds to the supplied attribute method.
S	getSource() Get the underlying source of annotation attributes.

Method Detail

getAnnotationType

java.lang.Class<? extends java.lang.annotation.Annotation> getAnnotationType()

Get the type of annotation that this extractor extracts attribute values for.

getAnnotatedElement

@Nullable
java.lang.Object getAnnotatedElement()

Get the element that is annotated with an annotation of the annotation type supported by this extractor.

Returns:

the annotated element, or null if unknown

getSource

S getSource()

Get the underlying source of annotation attributes.

getAttributeValue

@Nullable
java.lang.Object getAttributeValue(java.lang.reflect.Method attributeMethod)

Get the attribute value from the underlying source that corresponds to the supplied attribute method.

Parameters:

attributeMethod - an attribute method from the annotation type supported by this extractor

Returns:

the value of the annotation attribute