org.springframework.core.annotation

Class AbstractAliasAwareAnnotationAttributeExtractor

java.lang.Object

org.springframework.core.annotation.AbstractAliasAwareAnnotationAttributeExtractor

All Implemented Interfaces:

AnnotationAttributeExtractor

Direct Known Subclasses:

DefaultAnnotationAttributeExtractor, MapAnnotationAttributeExtractor

abstract class AbstractAliasAwareAnnotationAttributeExtractor
extends java.lang.Object
implements AnnotationAttributeExtractor

Abstract base class for AnnotationAttributeExtractor implementations that transparently enforce attribute alias semantics for annotation attributes that are annotated with @AliasFor.

Since:

4.2

Author:

Sam Brannen

See Also:

Annotation, AliasFor, AnnotationUtils.synthesizeAnnotation(Annotation, AnnotatedElement)

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.reflect.AnnotatedElement	annotatedElement
private java.lang.Class<? extends java.lang.annotation.Annotation>	annotationType
private java.util.Map<java.lang.String,java.lang.String>	attributeAliasMap
private java.lang.Object	source

Constructor Summary

Constructors

Constructor and Description
AbstractAliasAwareAnnotationAttributeExtractor(java.lang.Class<? extends java.lang.annotation.Annotation> annotationType, java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Object source) Construct a new AbstractAliasAwareAnnotationAttributeExtractor.

Method Summary

Modifier and Type	Method and Description
java.lang.reflect.AnnotatedElement	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.
protected abstract java.lang.Object	getRawAttributeValue(java.lang.reflect.Method attributeMethod) Get the raw, unmodified attribute value from the underlying source that corresponds to the supplied attribute method.
protected abstract java.lang.Object	getRawAttributeValue(java.lang.String attributeName) Get the raw, unmodified attribute value from the underlying source that corresponds to the supplied attribute name.
java.lang.Object	getSource() Get the underlying source of annotation attributes.
private static boolean	nullSafeEquals(java.lang.Object o1, java.lang.Object o2)
private static java.lang.String	nullSafeToString(java.lang.Object obj)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

annotationType

private final java.lang.Class<? extends java.lang.annotation.Annotation> annotationType

annotatedElement

private final java.lang.reflect.AnnotatedElement annotatedElement

source

private final java.lang.Object source

attributeAliasMap

private final java.util.Map<java.lang.String,java.lang.String> attributeAliasMap

Constructor Detail

AbstractAliasAwareAnnotationAttributeExtractor

AbstractAliasAwareAnnotationAttributeExtractor(java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                               java.lang.reflect.AnnotatedElement annotatedElement,
                                               java.lang.Object source)

Construct a new AbstractAliasAwareAnnotationAttributeExtractor.

Parameters:

annotationType - the annotation type to synthesize; never null

annotatedElement - the element that is annotated with the annotation of the supplied type; may be null if unknown

source - the underlying source of annotation attributes; never null

Method Detail

getAnnotationType

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

Description copied from interface: AnnotationAttributeExtractor

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

Specified by:

getAnnotationType in interface AnnotationAttributeExtractor

getAnnotatedElement

public final java.lang.reflect.AnnotatedElement getAnnotatedElement()

Description copied from interface: AnnotationAttributeExtractor

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

Specified by:

getAnnotatedElement in interface AnnotationAttributeExtractor

Returns:

the annotated element, or null if unknown

getSource

public java.lang.Object getSource()

Description copied from interface: AnnotationAttributeExtractor

Get the underlying source of annotation attributes.

Specified by:

getSource in interface AnnotationAttributeExtractor

getAttributeValue

public final java.lang.Object getAttributeValue(java.lang.reflect.Method attributeMethod)

Description copied from interface: AnnotationAttributeExtractor

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

Specified by:

getAttributeValue in interface AnnotationAttributeExtractor

Parameters:

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

Returns:

the value of the annotation attribute

getRawAttributeValue

protected abstract java.lang.Object getRawAttributeValue(java.lang.reflect.Method attributeMethod)

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

getRawAttributeValue

protected abstract java.lang.Object getRawAttributeValue(java.lang.String attributeName)

Get the raw, unmodified attribute value from the underlying source that corresponds to the supplied attribute name.

nullSafeEquals

private static boolean nullSafeEquals(java.lang.Object o1,
                                      java.lang.Object o2)

nullSafeToString

private static java.lang.String nullSafeToString(java.lang.Object obj)