R
- the return type of this visitor's methodsP
- the type of the additional parameter to this visitor's methods.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 versus int
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's accept
method,
the visitXYZ method applicable to that value is
invoked.
Classes implementing this interface may or may not throw a
NullPointerException
if the additional parameter p
is null
; 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.
Method Summary | |
---|---|
R |
visit(AnnotationValue av)
A convenience method equivalent to v.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 a boolean value in an annotation. |
R |
visitByte(byte b,
P p)
Visits a byte value in an annotation. |
R |
visitChar(char c,
P p)
Visits a char value in an annotation. |
R |
visitDouble(double d,
P p)
Visits a double value in an annotation. |
R |
visitEnumConstant(VariableElement c,
P p)
Visits an enum value in an annotation. |
R |
visitFloat(float f,
P p)
Visits a float value in an annotation. |
R |
visitInt(int i,
P p)
Visits an int value in an annotation. |
R |
visitLong(long i,
P p)
Visits a long value in an annotation. |
R |
visitShort(short s,
P p)
Visits a short 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 |
---|
R visit(AnnotationValue av, P p)
av
- the value to visitp
- a visitor-specified parameter
R visit(AnnotationValue av)
v.visit(av, null)
.
av
- the value to visit
R visitBoolean(boolean b, P p)
boolean
value in an annotation.
b
- the value being visitedp
- a visitor-specified parameter
R visitByte(byte b, P p)
byte
value in an annotation.
b
- the value being visitedp
- a visitor-specified parameter
R visitChar(char c, P p)
char
value in an annotation.
c
- the value being visitedp
- a visitor-specified parameter
R visitDouble(double d, P p)
double
value in an annotation.
d
- the value being visitedp
- a visitor-specified parameter
R visitFloat(float f, P p)
float
value in an annotation.
f
- the value being visitedp
- a visitor-specified parameter
R visitInt(int i, P p)
int
value in an annotation.
i
- the value being visitedp
- a visitor-specified parameter
R visitLong(long i, P p)
long
value in an annotation.
i
- the value being visitedp
- a visitor-specified parameter
R visitShort(short s, P p)
short
value in an annotation.
s
- the value being visitedp
- a visitor-specified parameter
R visitString(String s, P p)
s
- the value being visitedp
- a visitor-specified parameter
R visitType(TypeMirror t, P p)
t
- the value being visitedp
- a visitor-specified parameter
R visitEnumConstant(VariableElement c, P p)
enum
value in an annotation.
c
- the value being visitedp
- a visitor-specified parameter
R visitAnnotation(AnnotationMirror a, P p)
a
- the value being visitedp
- a visitor-specified parameter
R visitArray(List<? extends AnnotationValue> vals, P p)
vals
- the value being visitedp
- a visitor-specified parameter
R visitUnknown(AnnotationValue av, P p)
av
- the unknown value being visitedp
- a visitor-specified parameter
UnknownAnnotationValueException
- a visitor implementation may optionally throw this exception