Package com.google.auto.common

Class AnnotationMirrors

java.lang.Object

com.google.auto.common.AnnotationMirrors

public final class AnnotationMirrors
extends Object

A utility class for working with AnnotationMirror instances.

Author:

Gregory Kick

Method Summary

Modifier and Type	Method	Description
static com.google.common.base.Equivalence<AnnotationMirror>	equivalence()	Returns an Equivalence for AnnotationMirror as some implementations delegate equality tests to Object.equals(java.lang.Object) whereas the documentation explicitly states that instance/reference equality is not the proper test.
static com.google.common.collect.ImmutableSet<? extends AnnotationMirror>	getAnnotatedAnnotations(Element element, Class<? extends Annotation> annotationType)	Returns all annotations that are present on the given Element which are themselves annotated with annotationType.
static Map.Entry<ExecutableElement,AnnotationValue>	getAnnotationElementAndValue(AnnotationMirror annotationMirror, String elementName)	Returns a ExecutableElement and its associated AnnotationValue if such an element was either declared in the usage represented by the provided AnnotationMirror, or if such an element was defined with a default.
static AnnotationValue	getAnnotationValue(AnnotationMirror annotationMirror, String elementName)	Returns an AnnotationValue for the named element if such an element was either declared in the usage represented by the provided AnnotationMirror, or if such an element was defined with a default.
static Map<ExecutableElement,AnnotationValue>	getAnnotationValuesWithDefaults(AnnotationMirror annotation)	Returns the AnnotationMirror's map of AnnotationValue indexed by ExecutableElement, supplying default values from the annotation if the annotation property has not been set.

Methods inherited from class java.lang.Object

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

Method Detail

equivalence

public static com.google.common.base.Equivalence<AnnotationMirror> equivalence()

Returns an Equivalence for AnnotationMirror as some implementations delegate equality tests to Object.equals(java.lang.Object) whereas the documentation explicitly states that instance/reference equality is not the proper test.

getAnnotationValuesWithDefaults

public static Map<ExecutableElement,AnnotationValue> getAnnotationValuesWithDefaults(AnnotationMirror annotation)

Returns the AnnotationMirror's map of AnnotationValue indexed by ExecutableElement, supplying default values from the annotation if the annotation property has not been set. This is equivalent to Elements.getElementValuesWithDefaults(AnnotationMirror) but can be called statically without an instance.

getAnnotationValue

public static AnnotationValue getAnnotationValue(AnnotationMirror annotationMirror,
                                                 String elementName)

Returns an AnnotationValue for the named element if such an element was either declared in the usage represented by the provided AnnotationMirror, or if such an element was defined with a default.

Throws:

IllegalArgumentException - if no element is defined with the given elementName.

getAnnotationElementAndValue

public static Map.Entry<ExecutableElement,AnnotationValue> getAnnotationElementAndValue(AnnotationMirror annotationMirror,
                                                                                              String elementName)

Returns a ExecutableElement and its associated AnnotationValue if such an element was either declared in the usage represented by the provided AnnotationMirror, or if such an element was defined with a default.

Throws:

IllegalArgumentException - if no element is defined with the given elementName.

getAnnotatedAnnotations

public static com.google.common.collect.ImmutableSet<? extends AnnotationMirror> getAnnotatedAnnotations(Element element,
                                                                                                         Class<? extends Annotation> annotationType)

Returns all annotations that are present on the given Element which are themselves annotated with annotationType.