- Type Parameters:
- R- the return type of this visitor's methods
- P- the type of the additional parameter to this visitor's methods.
- All Known Implementing Classes:
- AbstractAnnotationValueVisitor14,- AbstractAnnotationValueVisitor6,- AbstractAnnotationValueVisitor7,- AbstractAnnotationValueVisitor8,- AbstractAnnotationValueVisitor9,- SimpleAnnotationValueVisitor14,- SimpleAnnotationValueVisitor6,- SimpleAnnotationValueVisitor7,- SimpleAnnotationValueVisitor8,- SimpleAnnotationValueVisitor9
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.
- API Note:
- 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.
 Such additions have already occurred in another visitor interface in
 this package to support language features added after this API was
 introduced.
 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.
 Methods to accommodate new language constructs are expected to be added as default methods to provide strong source compatibility, as done for visitModuleinElementVisitor. The implementations of the default methods in this interface will in turn callvisitUnknown, behavior that will be overridden in concrete visitors supporting the source version with the new language construct.There are several families of classes implementing this visitor interface in the util package. The families follow a naming pattern along the lines of FooVisitorN where N indicates the source version the visitor is appropriate for. In particular, aFooVisitorN is expected to handle all language constructs present in source version N. If there are no new language constructs added in version N + 1 (or subsequent releases),FooVisitorN may also handle that later source version; in that case, theSupportedSourceVersionannotation on theFooVisitorN class will indicate a later version. When visiting an annotation value representing a language construct introduced after source version N, aFooVisitorN will throw anUnknownAnnotationValueExceptionunless that behavior is overridden.When choosing which member of a visitor family to subclass, subclassing the most recent one increases the range of source versions covered. When choosing which visitor family to subclass, consider their built-in capabilities: - AbstractAnnotationValueVisitors: Skeletal visitor implementations.
- SimpleAnnotationValueVisitors: Support default actions and a default return value.
 
- Since:
- 1.6
- 
Method SummaryModifier and TypeMethodDescriptiondefault Rvisit(AnnotationValue av) A convenience method equivalent tovisit(av, null).visit(AnnotationValue av, P p) Visits an annotation value.visitAnnotation(AnnotationMirror a, P p) Visits an annotation value in an annotation.visitArray(List<? extends AnnotationValue> vals, P p) Visits an array value in an annotation.visitBoolean(boolean b, P p) Visits abooleanvalue in an annotation.Visits abytevalue in an annotation.Visits acharvalue in an annotation.visitDouble(double d, P p) Visits adoublevalue in an annotation.Visits anenumvalue in an annotation.visitFloat(float f, P p) Visits afloatvalue in an annotation.Visits anintvalue in an annotation.Visits alongvalue in an annotation.visitShort(short s, P p) Visits ashortvalue in an annotation.visitString(String s, P p) Visits a string value in an annotation.visitType(TypeMirror t, P p) Visits a type value in an annotation.visitUnknown(AnnotationValue av, P p) Visits an unknown kind of annotation value.
- 
Method Details- 
visitVisits an annotation value.- Parameters:
- av- the value to visit
- p- a visitor-specified parameter
- Returns:
- a visitor-specified result
 
- 
visitA convenience method equivalent tovisit(av, null).- Implementation Requirements:
- The default implementation is visit(av, null).
- Parameters:
- av- the value to visit
- Returns:
- a visitor-specified result
 
- 
visitBooleanVisits abooleanvalue in an annotation.- Parameters:
- b- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitByteVisits abytevalue in an annotation.- Parameters:
- b- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitCharVisits acharvalue in an annotation.- Parameters:
- c- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitDoubleVisits adoublevalue in an annotation.- Parameters:
- d- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitFloatVisits afloatvalue in an annotation.- Parameters:
- f- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitIntVisits anintvalue in an annotation.- Parameters:
- i- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitLongVisits alongvalue in an annotation.- Parameters:
- i- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitShortVisits ashortvalue in an annotation.- Parameters:
- s- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitStringVisits a string value in an annotation.- Parameters:
- s- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitTypeVisits a type value in an annotation.- Parameters:
- t- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitEnumConstantVisits anenumvalue in an annotation.- Parameters:
- c- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitAnnotationVisits an annotation value in an annotation.- Parameters:
- a- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitArrayVisits an array value in an annotation.- Parameters:
- vals- the value being visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
 
- 
visitUnknownVisits 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 visited
- p- a visitor-specified parameter
- Returns:
- the result of the visit
- Throws:
- UnknownAnnotationValueException- a visitor implementation may optionally throw this exception
 
 
-