org.jboss.jandex

Class EmptyTypeTarget

java.lang.Object

org.jboss.jandex.TypeTarget

org.jboss.jandex.EmptyTypeTarget

All Implemented Interfaces:

AnnotationTarget

public class EmptyTypeTarget
extends TypeTarget

Represents a type annotation target which occurs directly on a field type, a method return type, or a method receiver type. This class conveys the enclosing field or method, and if a method, also differentiates between the receiver and return value. Since type targets can appear at any depth of the type tree at this location, the corresponding type reference is also included.

Consider the following example involving a type target using the "Bar" annotation:

 public List<@Bar T> foo { return foo; }
 

This example would be represented as an EmptyTypeTarget with an enclosing target of Foo's MethodInfo, and isReceiver would return false.

Author:

Jason T. Greene

Nested Class Summary

Nested classes/interfaces inherited from class org.jboss.jandex.TypeTarget

TypeTarget.Usage

Nested classes/interfaces inherited from interface org.jboss.jandex.AnnotationTarget

AnnotationTarget.Kind

Method Summary

Modifier and Type	Method and Description
EmptyTypeTarget	asEmpty()
boolean	isReceiver() Returns whether the type occurs within a method receiver (the "this" reference the method receives).
TypeTarget.Usage	usage() Returns the kind of usage of this type target.

Methods inherited from class org.jboss.jandex.TypeTarget

asClass, asClassExtends, asField, asMethod, asMethodParameter, asMethodParameterType, asThrows, asType, asTypeParameter, asTypeParameterBound, enclosingTarget, kind, target

Methods inherited from class java.lang.Object

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

Method Detail

isReceiver

public boolean isReceiver()

Returns whether the type occurs within a method receiver (the "this" reference the method receives). It will return false if the type occurs within a method return, or a field.

Returns:

true if occurs within a method receiver, otherwise false

usage

public final TypeTarget.Usage usage()

Description copied from class: TypeTarget

Returns the kind of usage of this type target. This allows a caller to use a switch statement as opposed to getClass() comparisons.

Specified by:

usage in class TypeTarget

Returns:

the kind of usage of this type target

asEmpty

public EmptyTypeTarget asEmpty()

Overrides:

asEmpty in class TypeTarget