A simple visitor for annotation values with default behavior
appropriate for the
SourceVersion#RELEASE_8source version. Visit methods call
#defaultAction passing their arguments to
Methods in this class may be overridden subject to their
general contract. Note that annotating methods in concrete
java.lang.Override will help
ensure that methods are overridden as intended.
implemented by this class may have methods added to it in the
future to accommodate new, currently unknown, language structures
added to future versions of the Java™ programming language.
Therefore, methods whose names begin with
"visit" may be
added to this class in the future; to avoid incompatibilities,
classes which extend this class should not declare any instance
methods with names beginning with
When such a new visit method is added, the default
implementation in this class will be to call the
#visitUnknown method. A new simple annotation
value visitor class will also be introduced to correspond to the
new language level; this visitor will have different default
behavior for the visit method in question. When the new visitor is
introduced, all or portions of this visitor may be deprecated.
Note that adding a default implementation of a new visit method
in a visitor class will occur instead of adding a default
method directly in the visitor interface since a Java SE 8
language feature cannot be used to this version of the API since
this version is required to be runnable on Java SE 7
implementations. Future versions of the API that are only required
to run on Java SE 8 and later may take advantage of default methods
in this situation.