JBoss.org Community Documentation
The
prepare
tag allows you to define a pointcut expression. Any joinpoint that matches
the expression will be aspectized and bytecode instrumented. This allows you to hotdeploy and bind
aspects at runtime as well as to work with the per instance API that every aspectized class has.
To prepare something, just define a pointcut expression that matches the joinpoint you want to instrument.
<prepare expr="execution(void Foo-bar())"/>