apt
is a command-line utility for annotation processing.
It includes a set of reflective APIs and supporting infrastructure to
process program
annotations
(JSR 175).
These reflective APIs provide a build-time, source-based,
read-only view of program structure. They are designed to cleanly model
the JavaTM
programming language's type system after the addition of
generics
(JSR 14).
apt
first runs annotation processors that can produce new
source code and other files. Next, apt
can cause
compilation of both original and generated source files, thus
easing the development cycle.