Package 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 Details

    • EMPTY_ANNOTATION_ARRAY

      public static final Annotation[] EMPTY_ANNOTATION_ARRAY

    • EMPTY_OBJECT_ARRAY

      public static final Object[] EMPTY_OBJECT_ARRAY

    • DEFAULT_AND_ANY_ANNOTATION_ARRAY

      public static final Annotation[] DEFAULT_AND_ANY_ANNOTATION_ARRAY

    • DEFAULT_AND_ANY_ANNOTATION_SET

      public static final Set<Annotation> DEFAULT_AND_ANY_ANNOTATION_SET

  • Method Details

    • isDeclaringClass

      public static boolean isDeclaringClass(Class<?> declaringClass, Annotation declaredAnnotation)
      Checks, if the given class declares the specified annotation

    • getDeclaringClass

      public static Class<?> getDeclaringClass(Annotation declaredAnnotation, Class<?> typeHierarchy)
      Returns the declaring class for the specified annotation, using the specified type hierarchy.

    • hasMethodAnnotation

      public static boolean hasMethodAnnotation(Method method, Class<? extends Annotation> clazz)
      Check given annotation exist on the method. Utility method to get around some errors caused by interactions between the Equinox class loaders and the OpenJPA transformation process. There is a window where the OpenJPA transformation process can cause an annotation being processed to get defined in a classloader during the actual defineClass call for that very class (e.g., recursively). This results in a LinkageError exception. If we see one of these, retry the request. Since the annotation will be defined on the second pass, this should succeed. If we get a second exception, then it's likely some other problem.
      Parameters:
      method - method
      clazz - annotation class
      Returns:
      true or false

    • hasAnnotatedMethodParameterAnnotation

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

    • getFirstAnnotatedParameter

      public static <X> jakarta.enterprise.inject.spi.AnnotatedParameter<X> getFirstAnnotatedParameter(jakarta.enterprise.inject.spi.AnnotatedMethod<X> annotatedMethod, Class<? extends Annotation> annotation)

    • isCdiAnnotationEqual

      public static boolean isCdiAnnotationEqual(jakarta.enterprise.inject.spi.AnnotatedType<?> at, Annotation annotation1, Annotation annotation2)
      Checks if the given cdi annotations are equal. cdi annotations may either be qualifiers or interceptor bindings. CDI annotations are equal if they have the same annotationType and all their methods, except those annotated with @Nonbinding, return the same value.
      Parameters:
      annotation1 -
      annotation2 -
      Returns:

    • isCdiAnnotationEqual

      public static boolean isCdiAnnotationEqual(Annotation annotation1, Annotation annotation2)

    • getCdiAnnotationHashCode

      public static int getCdiAnnotationHashCode(Annotation annotation)
      Computes a hash code for the specified cdi annoation. cdi annotations may either be qualifiers or interceptor bindings. The hash code of CDI annotations consists of the hash code of the annotationType and all its method values, except those annotated with @Nonbinding.
      Parameters:
      annotation -
      Returns:

    • 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)

    • hasAnnotation

      public static boolean hasAnnotation(Set<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:

    • 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)

    • asArray

      public static Annotation[] asArray(Collection<Annotation> set)