org.apache.webbeans.util
Class AnnotationUtil

java.lang.Object
  org.apache.webbeans.util.AnnotationUtil

public final class AnnotationUtil
extends Object

Utility class related with Annotation operations.

Since:

1.0

Author:

Gurkan Erdogdu

Field Summary

static Annotation[]	EMPTY_ANNOTATION_ARRAY
static Object[]	EMPTY_OBJECT_ARRAY

Method Summary

static <X,T extends Annotation> T	getAnnotatedMethodFirstParameterAnnotation(javax.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod, Class<T> clazz)
static <X> Type	getAnnotatedMethodFirstParameterWithAnnotation(javax.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod, Class<? extends Annotation> clazz)
static <T extends Annotation> T	getAnnotation(Annotation[] anns, Class<T> annotation) get the annotation of the given type from the array.
static <T extends Annotation> T	getAnnotation(Set<Annotation> annotations, Class<T> annotationClass) Search in the given Set of Annotations for the one with the given AnnotationClass.
static Annotation[]	getAnnotationsFromSet(Set<Annotation> set)
static Annotation[]	getMetaAnnotations(Annotation[] anns, Class<? extends Annotation> metaAnnotation) Returns a subset of annotations that are annotated with the specified meta-annotation
static <T extends Annotation> T	getMethodFirstParameterAnnotation(Method method, Class<T> clazz) Gets the method first found parameter annotation with given type.
static Type	getMethodFirstParameterWithAnnotation(Method method, Class<? extends Annotation> clazz) Gets the method first found parameter type that is annotated with the given annotation.
static Method[]	getMethodsWithParameterAnnotation(Class<?> clazz, Class<? extends Annotation> annotation) Gets array of methods that has parameter with given annotation type.
static Type	getTypeOfParameterWithGivenAnnotation(Method method, Class<? extends Annotation> clazz) Get the Type of the method parameter which has the given annotation
static <X> boolean	hasAnnotatedMethodMultipleParameterAnnotation(javax.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod, Class<? extends Annotation> clazz)
static <X> boolean	hasAnnotatedMethodParameterAnnotation(javax.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod, Class<? extends Annotation> clazz)
static boolean	hasAnnotation(Annotation[] anns, Class<? extends Annotation> annotation)
static boolean	hasAnyQualifier(javax.enterprise.inject.spi.Bean<?> bean) Returns true if any binding exist
static boolean	hasClassAnnotation(Class<?> clazz, Class<? extends Annotation> annotation) Check whether or not class contains the given annotation.
static boolean	hasMetaAnnotation(Annotation[] anns, Class<? extends Annotation> metaAnnotation)
static boolean	hasMethodAnnotation(Method method, Class<? extends Annotation> clazz) Check given annotation exist on the method.
static boolean	hasMethodMultipleParameterAnnotation(Method method, Class<? extends Annotation> clazz) Check given annotation exist in the multiple parameter of the given method.
static boolean	hasMethodParameterAnnotation(Method method, Class<? extends Annotation> clazz) Check given annotation exist in the any parameter of the given method.
static Annotation	hasOwbInjectableResource(Annotation[] annotations)
static boolean	isQualifierEqual(Annotation qualifier1, Annotation qualifier2) Checks if the given qualifiers are equal.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_ANNOTATION_ARRAY

public static final Annotation[] EMPTY_ANNOTATION_ARRAY

EMPTY_OBJECT_ARRAY

public static final Object[] EMPTY_OBJECT_ARRAY

Method Detail

hasMethodAnnotation

public static boolean hasMethodAnnotation(Method method,
                                          Class<? extends Annotation> clazz)

Check given annotation exist on the method.

Parameters:

method - method

clazz - annotation class

Returns:

true or false

hasMethodParameterAnnotation

public static boolean hasMethodParameterAnnotation(Method method,
                                                   Class<? extends Annotation> clazz)

Check given annotation exist in the any parameter of the given method. Return true if exist false otherwise.

Parameters:

method - method

clazz - checking annotation

Returns:

true or false

hasAnnotatedMethodParameterAnnotation

public static <X> boolean hasAnnotatedMethodParameterAnnotation(javax.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod,
                                                                Class<? extends Annotation> clazz)

hasMethodMultipleParameterAnnotation

public static boolean hasMethodMultipleParameterAnnotation(Method method,
                                                           Class<? extends Annotation> clazz)

Check given annotation exist in the multiple parameter of the given method. Return true if exist false otherwise.

Parameters:

method - method

clazz - checking annotation

Returns:

true or false

hasAnnotatedMethodMultipleParameterAnnotation

public static <X> boolean hasAnnotatedMethodMultipleParameterAnnotation(javax.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod,
                                                                        Class<? extends Annotation> clazz)

getMethodFirstParameterWithAnnotation

public static Type getMethodFirstParameterWithAnnotation(Method method,
                                                         Class<? extends Annotation> clazz)

Gets the method first found parameter type that is annotated with the given annotation.

Parameters:

method - method

clazz - checking annotation

Returns:

type

getAnnotatedMethodFirstParameterWithAnnotation

public static <X> Type getAnnotatedMethodFirstParameterWithAnnotation(javax.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod,
                                                                      Class<? extends Annotation> clazz)

getTypeOfParameterWithGivenAnnotation

public static Type getTypeOfParameterWithGivenAnnotation(Method method,
                                                         Class<? extends Annotation> clazz)

Get the Type of the method parameter which has the given annotation

Parameters:

method - which need to be scanned

clazz - the annotation to scan the method parameters for

Returns:

the Type of the method parameter which has the given annotation, or null if not found.

getMethodFirstParameterAnnotation

public static <T extends Annotation> T getMethodFirstParameterAnnotation(Method method,
                                                                         Class<T> clazz)

Gets the method first found parameter annotation with given type.

Parameters:

method - method

clazz - checking annotation

Returns:

annotation

getAnnotatedMethodFirstParameterAnnotation

public static <X,T extends Annotation> T getAnnotatedMethodFirstParameterAnnotation(javax.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod,
                                                                                    Class<T> clazz)

isQualifierEqual

public static boolean isQualifierEqual(Annotation qualifier1,
                                       Annotation qualifier2)

Checks if the given qualifiers are equal. Qualifiers are equal if they have the same annotationType and all their methods, except those annotated with @Nonbinding, return the same value.

Parameters:

qualifier1 -

qualifier2 -

Returns:

getMethodsWithParameterAnnotation

public static Method[] getMethodsWithParameterAnnotation(Class<?> clazz,
                                                         Class<? extends Annotation> annotation)

Gets array of methods that has parameter with given annotation type.

Parameters:

clazz - class for check

annotation - for check

Returns:

array of methods

hasClassAnnotation

public static boolean hasClassAnnotation(Class<?> clazz,
                                         Class<? extends Annotation> annotation)

Check whether or not class contains the given annotation.

Parameters:

clazz - class instance

annotation - annotation class

Returns:

return true or false

hasMetaAnnotation

public static boolean hasMetaAnnotation(Annotation[] anns,
                                        Class<? extends Annotation> metaAnnotation)

hasAnnotation

public static boolean hasAnnotation(Annotation[] anns,
                                    Class<? extends Annotation> annotation)

getAnnotation

public static <T extends Annotation> T getAnnotation(Annotation[] anns,
                                                     Class<T> annotation)

get the annotation of the given type from the array.

Parameters:

anns -

annotation -

Returns:

the Annotation with the given type or null if no such found.

getMetaAnnotations

public static Annotation[] getMetaAnnotations(Annotation[] anns,
                                              Class<? extends Annotation> metaAnnotation)

Returns a subset of annotations that are annotated with the specified meta-annotation

Parameters:

anns -

metaAnnotation -

Returns:

hasAnyQualifier

public static boolean hasAnyQualifier(javax.enterprise.inject.spi.Bean<?> bean)

Returns true if any binding exist

Parameters:

bean - bean

Returns:

true if any binding exist

getAnnotation

public static <T extends Annotation> T getAnnotation(Set<Annotation> annotations,
                                                     Class<T> annotationClass)

Search in the given Set of Annotations for the one with the given AnnotationClass.

Parameters:

annotations - to scan

annotationClass - to search for

Returns:

the annotation with the given annotationClass or null if not found.

hasOwbInjectableResource

public static Annotation hasOwbInjectableResource(Annotation[] annotations)

getAnnotationsFromSet

public static Annotation[] getAnnotationsFromSet(Set<Annotation> set)