Package io.microsphere.spring.util

Class AnnotationUtils

java.lang.Object

io.microsphere.spring.util.AnnotationUtils

public abstract class AnnotationUtils
extends java.lang.Object

Annotation Utilities

Since:

1.0.0

Author:

Mercy

See Also:

Annotation

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.Class<?>	ANNOTATED_ELEMENT_UTILS_CLASS	The Class of AnnotatedElementUtils that is introduced since Spring Framework 4
static java.lang.String	ANNOTATED_ELEMENT_UTILS_CLASS_NAME	The class name of that is introduced since Spring Framework 4
static java.lang.reflect.Method	ANNOTATION_ATTRIBUTES_ANNOTATION_TYPE_METHOD	The Method object of AnnotationAttributes.annotationType() is introduced since Spring Framework 4.2

Constructor Summary

Constructors

Constructor	Description
AnnotationUtils()

Method Summary

Modifier and Type	Method	Description
static <A extends java.lang.annotation.Annotation> java.util.Map<java.lang.annotation.ElementType,java.util.List<A>>	findAnnotations(java.lang.reflect.Method method, java.lang.Class<A> annotationClass)	Find specified Annotation type maps from Method
static <A extends java.lang.annotation.Annotation> java.lang.Class<A>	findAnnotationType(org.springframework.core.annotation.AnnotationAttributes annotationAttributes)	Find the class of Annotation from the specified AnnotationAttributes
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(java.lang.annotation.Annotation annotation, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Get the AnnotationAttributes
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(java.lang.annotation.Annotation annotation, org.springframework.core.env.PropertyResolver propertyResolver, boolean classValuesAsString, boolean nestedAnnotationsAsMap, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Get the AnnotationAttributes
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(java.lang.annotation.Annotation annotation, org.springframework.core.env.PropertyResolver propertyResolver, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Get the AnnotationAttributes
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType, org.springframework.core.env.PropertyResolver propertyResolver, boolean classValuesAsString, boolean nestedAnnotationsAsMap, boolean ignoreDefaultValue, boolean tryMergedAnnotation, java.lang.String... ignoreAttributeNames)	Get the AnnotationAttributes, if the argument tryMergedAnnotation is true, the AnnotationAttributes will be got from merged annotation first, if failed, and then to get from normal one
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType, org.springframework.core.env.PropertyResolver propertyResolver, boolean classValuesAsString, boolean nestedAnnotationsAsMap, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Get the AnnotationAttributes
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType, org.springframework.core.env.PropertyResolver propertyResolver, boolean ignoreDefaultValue, boolean tryMergedAnnotation, java.lang.String... ignoreAttributeNames)	Get the AnnotationAttributes, if the argument tryMergedAnnotation is true, the AnnotationAttributes will be got from merged annotation first, if failed, and then to get from normal one
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType, org.springframework.core.env.PropertyResolver propertyResolver, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Get the AnnotationAttributes
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(org.springframework.core.type.AnnotationMetadata metadata, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType)	Get an instance of AnnotationAttributes from AnnotationMetadata with the specified class name of annotation.
static org.springframework.core.annotation.AnnotationAttributes	getAnnotationAttributes(org.springframework.core.type.AnnotationMetadata metadata, java.lang.String annotationClassName)	Get an instance of AnnotationAttributes from AnnotationMetadata with the specified class name of annotation.
static <T> T	getAttribute(java.lang.annotation.Annotation annotation, java.lang.String attributeName)	Get the attribute value
static <T> T	getAttribute(java.util.Map<java.lang.String,java.lang.Object> attributes, java.lang.String attributeName)	Get the attribute value
static <T> T	getAttribute(java.util.Map<java.lang.String,java.lang.Object> attributes, java.lang.String attributeName, boolean required)	Get the attribute value the will
static <T> T	getAttribute(java.util.Map<java.lang.String,java.lang.Object> attributes, java.lang.String attributeName, T defaultValue)	Get the attribute value with default value
static java.util.Map<java.lang.String,java.lang.Object>	getAttributes(java.lang.annotation.Annotation annotation, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Get the Annotation attributes
static java.util.Map<java.lang.String,java.lang.Object>	getAttributes(java.lang.annotation.Annotation annotation, org.springframework.core.env.PropertyResolver propertyResolver, boolean classValuesAsString, boolean nestedAnnotationsAsMap, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)
static java.util.Map<java.lang.String,java.lang.Object>	getAttributes(java.lang.annotation.Annotation annotation, org.springframework.core.env.PropertyResolver propertyResolver, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Get the Annotation attributes
static java.util.Map<java.lang.String,java.lang.Object>	getAttributes(java.util.Map<java.lang.String,java.lang.Object> annotationAttributes, org.springframework.core.env.PropertyResolver propertyResolver, java.lang.String... ignoreAttributeNames)	Get the Annotation attributes
static <T> T	getRequiredAttribute(java.util.Map<java.lang.String,java.lang.Object> attributes, java.lang.String attributeName)	Get the required attribute value
static <A extends java.lang.annotation.Annotation> boolean	isPresent(java.lang.reflect.Method method, java.lang.Class<A> annotationClass)	Is specified Annotation present on Method's declaring class or parameters or itself.
static java.lang.annotation.Annotation	tryGetMergedAnnotation(java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType)	Try to get the merged annotation
static java.lang.annotation.Annotation	tryGetMergedAnnotation(java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType, boolean classValuesAsString, boolean nestedAnnotationsAsMap)	Try to get the merged annotation
static org.springframework.core.annotation.AnnotationAttributes	tryGetMergedAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType, org.springframework.core.env.PropertyResolver propertyResolver, boolean classValuesAsString, boolean nestedAnnotationsAsMap, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Try to get the annotation attributes after merging and resolving the placeholders
static org.springframework.core.annotation.AnnotationAttributes	tryGetMergedAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement, java.lang.Class<? extends java.lang.annotation.Annotation> annotationType, org.springframework.core.env.PropertyResolver propertyResolver, boolean ignoreDefaultValue, java.lang.String... ignoreAttributeNames)	Try to get the annotation attributes after merging and resolving the placeholders

Methods inherited from class java.lang.Object

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

Field Detail

ANNOTATED_ELEMENT_UTILS_CLASS_NAME

public static final java.lang.String ANNOTATED_ELEMENT_UTILS_CLASS_NAME

The class name of that is introduced since Spring Framework 4

See Also:

Constant Field Values

ANNOTATED_ELEMENT_UTILS_CLASS

public static final java.lang.Class<?> ANNOTATED_ELEMENT_UTILS_CLASS

The Class of AnnotatedElementUtils that is introduced since Spring Framework 4

ANNOTATION_ATTRIBUTES_ANNOTATION_TYPE_METHOD

public static final java.lang.reflect.Method ANNOTATION_ATTRIBUTES_ANNOTATION_TYPE_METHOD

The Method object of AnnotationAttributes.annotationType() is introduced since Spring Framework 4.2

Constructor Detail

AnnotationUtils

public AnnotationUtils()

Method Detail

isPresent

public static <A extends java.lang.annotation.Annotation> boolean isPresent(java.lang.reflect.Method method,
                                                                            java.lang.Class<A> annotationClass)

Is specified Annotation present on Method's declaring class or parameters or itself.

Type Parameters:

A - Annotation type

Parameters:

method - Method

annotationClass - Annotation type

Returns:

If present , return true , or false

findAnnotations

public static <A extends java.lang.annotation.Annotation> java.util.Map<java.lang.annotation.ElementType,java.util.List<A>> findAnnotations(java.lang.reflect.Method method,
                                                                                                                                                  java.lang.Class<A> annotationClass)

Find specified Annotation type maps from Method

Type Parameters:

A - Annotation type

Parameters:

method - Method

annotationClass - Annotation type

Returns:

Annotation type maps , the ElementType as key , the list of Annotation as value. If Annotation was annotated on Method's parametersElementType.PARAMETER , the associated Annotation list may contain multiple elements.

getAttributes

public static java.util.Map<java.lang.String,java.lang.Object> getAttributes(java.lang.annotation.Annotation annotation,
                                                                                   boolean ignoreDefaultValue,
                                                                                   java.lang.String... ignoreAttributeNames)

Get the Annotation attributes

Parameters:

annotation - specified Annotation

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

non-null

getAttributes

public static java.util.Map<java.lang.String,java.lang.Object> getAttributes(java.lang.annotation.Annotation annotation,
                                                                                   org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                   boolean ignoreDefaultValue,
                                                                                   java.lang.String... ignoreAttributeNames)

Get the Annotation attributes

Parameters:

annotation - specified Annotation

propertyResolver - PropertyResolver instance, e.g Environment

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

non-null

getAttributes

public static java.util.Map<java.lang.String,java.lang.Object> getAttributes(java.util.Map<java.lang.String,java.lang.Object> annotationAttributes,
                                                                                   org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                   java.lang.String... ignoreAttributeNames)

Get the Annotation attributes

Parameters:

annotationAttributes - the attributes of specified Annotation

propertyResolver - PropertyResolver instance, e.g Environment

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

non-null

getAttributes

public static java.util.Map<java.lang.String,java.lang.Object> getAttributes(java.lang.annotation.Annotation annotation,
                                                                                   org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                   boolean classValuesAsString,
                                                                                   boolean nestedAnnotationsAsMap,
                                                                                   boolean ignoreDefaultValue,
                                                                                   java.lang.String... ignoreAttributeNames)

Parameters:

annotation - specified Annotation

propertyResolver - PropertyResolver instance, e.g Environment

classValuesAsString - whether to turn Class references into Strings (for compatibility with AnnotationMetadata or to preserve them as Class references

nestedAnnotationsAsMap - whether to turn nested Annotation instances into AnnotationAttributes maps (for compatibility with AnnotationMetadata or to preserve them as Annotation instances

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

getAttribute

public static <T> T getAttribute(java.lang.annotation.Annotation annotation,
                                 java.lang.String attributeName)

Get the attribute value

Type Parameters:

T - the type of attribute value

Parameters:

annotation - annotation

attributeName - the name of attribute

Returns:

the attribute value if found

getAttribute

public static <T> T getAttribute(java.util.Map<java.lang.String,java.lang.Object> attributes,
                                 java.lang.String attributeName)

Get the attribute value

Type Parameters:

T - the type of attribute value

Parameters:

attributes - the annotation attributes or AnnotationAttributes

attributeName - the name of attribute

Returns:

the attribute value if found

getAttribute

public static <T> T getAttribute(java.util.Map<java.lang.String,java.lang.Object> attributes,
                                 java.lang.String attributeName,
                                 boolean required)

Get the attribute value the will

Type Parameters:

T - the type of attribute value

Parameters:

attributes - the annotation attributes or AnnotationAttributes

attributeName - the name of attribute

required - the required attribute or not

Returns:

the attribute value if found

Throws:

java.lang.IllegalStateException - if attribute value can't be found

getAttribute

public static <T> T getAttribute(java.util.Map<java.lang.String,java.lang.Object> attributes,
                                 java.lang.String attributeName,
                                 T defaultValue)

Get the attribute value with default value

Type Parameters:

T - the type of attribute value

Parameters:

attributes - the annotation attributes or AnnotationAttributes

attributeName - the name of attribute

defaultValue - the default value of attribute

Returns:

the attribute value if found

getRequiredAttribute

public static <T> T getRequiredAttribute(java.util.Map<java.lang.String,java.lang.Object> attributes,
                                         java.lang.String attributeName)

Get the required attribute value

Type Parameters:

T - the type of attribute value

Parameters:

attributes - the annotation attributes or AnnotationAttributes

attributeName - the name of attribute

Returns:

the attribute value if found

Throws:

java.lang.IllegalStateException - if attribute value can't be found

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(java.lang.annotation.Annotation annotation,
                                                                                               boolean ignoreDefaultValue,
                                                                                               java.lang.String... ignoreAttributeNames)

Get the AnnotationAttributes

Parameters:

annotation - specified Annotation

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

non-null

See Also:

getAnnotationAttributes(Annotation, PropertyResolver, boolean, String...)

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(java.lang.annotation.Annotation annotation,
                                                                                               org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                               boolean classValuesAsString,
                                                                                               boolean nestedAnnotationsAsMap,
                                                                                               boolean ignoreDefaultValue,
                                                                                               java.lang.String... ignoreAttributeNames)

Get the AnnotationAttributes

Parameters:

annotation - specified Annotation

propertyResolver - PropertyResolver instance, e.g Environment

classValuesAsString - whether to turn Class references into Strings (for compatibility with AnnotationMetadata or to preserve them as Class references

nestedAnnotationsAsMap - whether to turn nested Annotation instances into AnnotationAttributes maps (for compatibility with AnnotationMetadata or to preserve them as Annotation instances

ignoreAttributeNames - the attribute names of annotation should be ignored

ignoreDefaultValue - whether ignore default value or not

Returns:

non-null

See Also:

getAttributes(Annotation, PropertyResolver, boolean, String...), getAnnotationAttributes(AnnotatedElement, Class, PropertyResolver, boolean, String...)

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(java.lang.annotation.Annotation annotation,
                                                                                               org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                               boolean ignoreDefaultValue,
                                                                                               java.lang.String... ignoreAttributeNames)

Get the AnnotationAttributes

Parameters:

annotation - specified Annotation

propertyResolver - PropertyResolver instance, e.g Environment

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

non-null

See Also:

getAttributes(Annotation, PropertyResolver, boolean, String...), getAnnotationAttributes(AnnotatedElement, Class, PropertyResolver, boolean, String...)

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement,
                                                                                               java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                                                                               org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                               boolean ignoreDefaultValue,
                                                                                               java.lang.String... ignoreAttributeNames)

Get the AnnotationAttributes

Parameters:

annotatedElement - the annotated element

annotationType - the tyoe pf annotation

propertyResolver - PropertyResolver instance, e.g Environment

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

if annotatedElement can't be found in annotatedElement, return null

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement,
                                                                                               java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                                                                               org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                               boolean classValuesAsString,
                                                                                               boolean nestedAnnotationsAsMap,
                                                                                               boolean ignoreDefaultValue,
                                                                                               java.lang.String... ignoreAttributeNames)

Get the AnnotationAttributes

Parameters:

annotatedElement - the annotated element

annotationType - the tyoe pf annotation

propertyResolver - PropertyResolver instance, e.g Environment

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

if annotatedElement can't be found in annotatedElement, return null

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement,
                                                                                               java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                                                                               org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                               boolean ignoreDefaultValue,
                                                                                               boolean tryMergedAnnotation,
                                                                                               java.lang.String... ignoreAttributeNames)

Get the AnnotationAttributes, if the argument tryMergedAnnotation is true, the AnnotationAttributes will be got from merged annotation first, if failed, and then to get from normal one

Parameters:

annotatedElement - the annotated element

annotationType - the tyoe pf annotation

propertyResolver - PropertyResolver instance, e.g Environment

ignoreDefaultValue - whether ignore default value or not

tryMergedAnnotation - whether try merged annotation or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

if annotatedElement can't be found in annotatedElement, return null

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement,
                                                                                               java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                                                                               org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                               boolean classValuesAsString,
                                                                                               boolean nestedAnnotationsAsMap,
                                                                                               boolean ignoreDefaultValue,
                                                                                               boolean tryMergedAnnotation,
                                                                                               java.lang.String... ignoreAttributeNames)

Get the AnnotationAttributes, if the argument tryMergedAnnotation is true, the AnnotationAttributes will be got from merged annotation first, if failed, and then to get from normal one

Parameters:

annotatedElement - the annotated element

annotationType - the tyoe pf annotation

propertyResolver - PropertyResolver instance, e.g Environment

classValuesAsString - whether to turn Class references into Strings (for compatibility with AnnotationMetadata or to preserve them as Class references

nestedAnnotationsAsMap - whether to turn nested Annotation instances into AnnotationAttributes maps (for compatibility with AnnotationMetadata or to preserve them as Annotation instances

ignoreDefaultValue - whether ignore default value or not

tryMergedAnnotation - whether try merged annotation or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

if annotatedElement can't be found in annotatedElement, return null

tryGetMergedAnnotation

public static java.lang.annotation.Annotation tryGetMergedAnnotation(java.lang.reflect.AnnotatedElement annotatedElement,
                                                                     java.lang.Class<? extends java.lang.annotation.Annotation> annotationType)

Try to get the merged annotation

Parameters:

annotatedElement - the annotated element

annotationType - the tyoe pf annotation

Returns:

If current version of Spring Framework is below 4.2, return null

tryGetMergedAnnotation

public static java.lang.annotation.Annotation tryGetMergedAnnotation(java.lang.reflect.AnnotatedElement annotatedElement,
                                                                     java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                                                     boolean classValuesAsString,
                                                                     boolean nestedAnnotationsAsMap)

Try to get the merged annotation

Parameters:

annotatedElement - the annotated element

annotationType - the tyoe pf annotation

classValuesAsString - whether to turn Class references into Strings (for compatibility with AnnotationMetadata or to preserve them as Class references

nestedAnnotationsAsMap - whether to turn nested Annotation instances into AnnotationAttributes maps (for compatibility with AnnotationMetadata or to preserve them as Annotation instances

Returns:

If current version of Spring Framework is below 4.2, return null

tryGetMergedAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes tryGetMergedAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement,
                                                                                                        java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                                                                                        org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                                        boolean ignoreDefaultValue,
                                                                                                        java.lang.String... ignoreAttributeNames)

Try to get the annotation attributes after merging and resolving the placeholders

Parameters:

annotatedElement - the annotated element

annotationType - the tyoe pf annotation

propertyResolver - PropertyResolver instance, e.g Environment

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

If the specified annotation type is not found, return null

tryGetMergedAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes tryGetMergedAnnotationAttributes(java.lang.reflect.AnnotatedElement annotatedElement,
                                                                                                        java.lang.Class<? extends java.lang.annotation.Annotation> annotationType,
                                                                                                        org.springframework.core.env.PropertyResolver propertyResolver,
                                                                                                        boolean classValuesAsString,
                                                                                                        boolean nestedAnnotationsAsMap,
                                                                                                        boolean ignoreDefaultValue,
                                                                                                        java.lang.String... ignoreAttributeNames)

Try to get the annotation attributes after merging and resolving the placeholders

Parameters:

annotatedElement - the annotated element

annotationType - the tyoe pf annotation

propertyResolver - PropertyResolver instance, e.g Environment

classValuesAsString - whether to turn Class references into Strings (for compatibility with AnnotationMetadata or to preserve them as Class references

nestedAnnotationsAsMap - whether to turn nested Annotation instances into AnnotationAttributes maps (for compatibility with AnnotationMetadata or to preserve them as Annotation instances

ignoreDefaultValue - whether ignore default value or not

ignoreAttributeNames - the attribute names of annotation should be ignored

Returns:

If the specified annotation type is not found, return null

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(org.springframework.core.type.AnnotationMetadata metadata,
                                                                                               java.lang.Class<? extends java.lang.annotation.Annotation> annotationType)

Get an instance of AnnotationAttributes from AnnotationMetadata with the specified class name of annotation.

Parameters:

metadata - AnnotationMetadata

annotationType - The class of annotation

Returns:

non-null

getAnnotationAttributes

public static org.springframework.core.annotation.AnnotationAttributes getAnnotationAttributes(org.springframework.core.type.AnnotationMetadata metadata,
                                                                                               java.lang.String annotationClassName)

Get an instance of AnnotationAttributes from AnnotationMetadata with the specified class name of annotation.

Parameters:

metadata - AnnotationMetadata

annotationClassName - The class name of annotation

Returns:

non-null

findAnnotationType

@Nullable
public static <A extends java.lang.annotation.Annotation> java.lang.Class<A> findAnnotationType(org.springframework.core.annotation.AnnotationAttributes annotationAttributes)

Find the class of Annotation from the specified AnnotationAttributes

Type Parameters:

A - The class of Annotation

Parameters:

annotationAttributes - AnnotationAttributes

Returns:

null if not found