jodd.util
Class AnnotationDataReader<A extends java.lang.annotation.Annotation,D extends AnnotationDataReader.AnnotationData<A>>

java.lang.Object
  jodd.util.AnnotationDataReader<A,D>

public abstract class AnnotationDataReader<A extends java.lang.annotation.Annotation,D extends AnnotationDataReader.AnnotationData<A>>
extends java.lang.Object

Annotation reader that reads an annotation and returns annotation data object filled with annotation element values. May be used when having two or more annotations with same elements - since java doesn't support annotation inheritance.

Nested Class Summary

static class

AnnotationDataReader.AnnotationData<N extends java.lang.annotation.Annotation> Base class for annotation data, for holding annotation elements values.

Field Summary

protected java.lang.Class<A>

annotationClass

Constructor Summary

protected	AnnotationDataReader() Creates new annotation data reader using annotation definition from class generics.
protected	AnnotationDataReader(java.lang.Class<A> annotationClass) Creates new annotation data reader using provided annotation class.

Method Summary

protected abstract D	createAnnotationData(A annotation) Creates annotation data from given annotation.
java.lang.Class<A>	getAnnotationClass() Returns annotation class.
boolean	hasAnnotation(java.lang.reflect.AccessibleObject accessibleObject) Returns true if annotation is present on given accessible object.
D	readAnnotationData(java.lang.reflect.AccessibleObject accessibleObject) Reads annotation data on provided accessible object.
protected java.lang.Object	readElement(A annotation, java.lang.String name) Reads annotation element as an object.
protected java.lang.String	readStringElement(A annotation, java.lang.String name) Reads non-empty, trimmed, annotation element value.

Methods inherited from class java.lang.Object

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

Field Detail

annotationClass

protected final java.lang.Class<A extends java.lang.annotation.Annotation> annotationClass

Constructor Detail

AnnotationDataReader

protected AnnotationDataReader()

Creates new annotation data reader using annotation definition from class generics.

AnnotationDataReader

protected AnnotationDataReader(java.lang.Class<A> annotationClass)

Creates new annotation data reader using provided annotation class.

Method Detail

getAnnotationClass

public java.lang.Class<A> getAnnotationClass()

Returns annotation class.

hasAnnotation

public boolean hasAnnotation(java.lang.reflect.AccessibleObject accessibleObject)

Returns true if annotation is present on given accessible object.

readAnnotationData

public D readAnnotationData(java.lang.reflect.AccessibleObject accessibleObject)

Reads annotation data on provided accessible object. If annotation is not presented, null is returned.

createAnnotationData

protected abstract D createAnnotationData(A annotation)

Creates annotation data from given annotation.

readStringElement

protected java.lang.String readStringElement(A annotation,
                                             java.lang.String name)

Reads non-empty, trimmed, annotation element value. If annotation value is an empty string, returns null.

readElement

protected java.lang.Object readElement(A annotation,
                                       java.lang.String name)

Reads annotation element as an object.