-
- Type Parameters:
R
- the return type of this visitor's methodsP
- the type of the additional parameter to this visitor's methods.
- All Known Implementing Classes:
- AbstractAnnotationValueVisitor6, AbstractAnnotationValueVisitor7, SimpleAnnotationValueVisitor6, SimpleAnnotationValueVisitor7
public interface AnnotationValueVisitor<R,P>
A visitor of the values of annotation type elements, using a variant of the visitor design pattern. Unlike a standard visitor which dispatches based on the concrete type of a member of a type hierarchy, this visitor dispatches based on the type of data stored; there are no distinct subclasses for storing, for example,boolean
values versusint
values. Classes implementing this interface are used to operate on a value when the type of that value is unknown at compile time. When a visitor is passed to a value'saccept
method, the visitXYZ method applicable to that value is invoked.Classes implementing this interface may or may not throw a
NullPointerException
if the additional parameterp
isnull
; see documentation of the implementing class for details.WARNING: It is possible that methods will be added to this interface to accommodate new, currently unknown, language structures added to future versions of the Java™ programming language. Therefore, visitor classes directly implementing this interface may be source incompatible with future versions of the platform. To avoid this source incompatibility, visitor implementations are encouraged to instead extend the appropriate abstract visitor class that implements this interface. However, an API should generally use this visitor interface as the type for parameters, return type, etc. rather than one of the abstract classes.
- Since:
- 1.6
-
-
Method Summary
Methods Modifier and Type Method and Description R
visit(AnnotationValue av)
A convenience method equivalent tov.visit(av, null)
.R
visit(AnnotationValue av, P p)
Visits an annotation value.R
visitAnnotation(AnnotationMirror a, P p)
Visits an annotation value in an annotation.R
visitArray(List<? extends AnnotationValue> vals, P p)
Visits an array value in an annotation.R
visitBoolean(boolean b, P p)
Visits aboolean
value in an annotation.R
visitByte(byte b, P p)
Visits abyte
value in an annotation.R
visitChar(char c, P p)
Visits achar
value in an annotation.R
visitDouble(double d, P p)
Visits adouble
value in an annotation.R
visitEnumConstant(VariableElement c, P p)
Visits anenum
value in an annotation.R
visitFloat(float f, P p)
Visits afloat
value in an annotation.R
visitInt(int i, P p)
Visits anint
value in an annotation.R
visitLong(long i, P p)
Visits along
value in an annotation.R
visitShort(short s, P p)
Visits ashort
value in an annotation.R
visitString(String s, P p)
Visits a string value in an annotation.R
visitType(TypeMirror t, P p)
Visits a type value in an annotation.R
visitUnknown(AnnotationValue av, P p)
Visits an unknown kind of annotation value.
-
-
-
Method Detail
-
visit
R visit(AnnotationValue av, P p)
Visits an annotation value.- Parameters:
av
- the value to visitp
- a visitor-specified parameter- Returns:
- a visitor-specified result
-
visit
R visit(AnnotationValue av)
A convenience method equivalent tov.visit(av, null)
.- Parameters:
av
- the value to visit- Returns:
- a visitor-specified result
-
visitBoolean
R visitBoolean(boolean b, P p)
Visits aboolean
value in an annotation.- Parameters:
b
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitByte
R visitByte(byte b, P p)
Visits abyte
value in an annotation.- Parameters:
b
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitChar
R visitChar(char c, P p)
Visits achar
value in an annotation.- Parameters:
c
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitDouble
R visitDouble(double d, P p)
Visits adouble
value in an annotation.- Parameters:
d
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitFloat
R visitFloat(float f, P p)
Visits afloat
value in an annotation.- Parameters:
f
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitInt
R visitInt(int i, P p)
Visits anint
value in an annotation.- Parameters:
i
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitLong
R visitLong(long i, P p)
Visits along
value in an annotation.- Parameters:
i
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitShort
R visitShort(short s, P p)
Visits ashort
value in an annotation.- Parameters:
s
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitString
R visitString(String s, P p)
Visits a string value in an annotation.- Parameters:
s
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitType
R visitType(TypeMirror t, P p)
Visits a type value in an annotation.- Parameters:
t
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitEnumConstant
R visitEnumConstant(VariableElement c, P p)
Visits anenum
value in an annotation.- Parameters:
c
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitAnnotation
R visitAnnotation(AnnotationMirror a, P p)
Visits an annotation value in an annotation.- Parameters:
a
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitArray
R visitArray(List<? extends AnnotationValue> vals, P p)
Visits an array value in an annotation.- Parameters:
vals
- the value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
-
visitUnknown
R visitUnknown(AnnotationValue av, P p)
Visits an unknown kind of annotation value. This can occur if the language evolves and new kinds of value can be stored in an annotation.- Parameters:
av
- the unknown value being visitedp
- a visitor-specified parameter- Returns:
- the result of the visit
- Throws:
UnknownAnnotationValueException
- a visitor implementation may optionally throw this exception
-
-
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Bij voorbaat dank.
Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
Bron van het afgedrukte document:https://www.gaudry.be/nl/java-api-rf-javax/lang/model/element/AnnotationValueVisitor.html
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