Package java.lang.reflect

Interface AnnotatedElement

All Known Implementing Classes:
AccessibleObject, Class, Constructor, Field, Method, Package
public interface AnnotatedElement
This interface provides reflective access to annotation information.
Since:
1.5

  • Method Summary

    Modifier and Type Method Description
    <T extends Annotation>
    T    		 getAnnotation​(Class<T> annotationType)
    Returns, for this element, the annotation with the specified type, or null if no annotation with the specified type is present (including inherited annotations).
    Annotation[] getAnnotations()
    Returns, for this element, an array containing all annotations (including inherited annotations).
    Annotation[] getDeclaredAnnotations()
    Returns, for this element, all annotations that are explicitly declared (not inherited).
    boolean isAnnotationPresent​(Class<? extends Annotation> annotationType)
    Indicates whether or not this element has an annotation with the specified annotation type (including inherited annotations).

  • Method Details

    • getAnnotation

      <T extends Annotation> T getAnnotation​(Class<T> annotationType)
      Returns, for this element, the annotation with the specified type, or null if no annotation with the specified type is present (including inherited annotations).
      Parameters:
      annotationType - the type of the annotation to search for
      Returns:
      the annotation with the specified type or null
      Throws:
      NullPointerException - if annotationType is null

    • getAnnotations

      Annotation[] getAnnotations()
      Returns, for this element, an array containing all annotations (including inherited annotations). If there are no annotations present, this method returns a zero length array.
      Returns:
      an array of all annotations for this element

    • getDeclaredAnnotations

      Annotation[] getDeclaredAnnotations()
      Returns, for this element, all annotations that are explicitly declared (not inherited). If there are no declared annotations present, this method returns a zero length array.
      Returns:
      an array of annotations declared for this element

    • isAnnotationPresent

      boolean isAnnotationPresent​(Class<? extends Annotation> annotationType)
      Indicates whether or not this element has an annotation with the specified annotation type (including inherited annotations).
      Parameters:
      annotationType - the type of the annotation to search for
      Returns:
      true if the annotation exists, false otherwise
      Throws:
      NullPointerException - if annotationType is null