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For basic interception, any method that follows the form:
Object methodName(Invocation object) throws Throwable
can be an advice. The
Invocation.invokeNext()
method must be called by the advice
code or no other advice will be called, and the actual method, field, or constructor invocation will not
happen.
JBoss AOP provides five types of advice: before, around, after, finally and after-throwing. The advice sginature above is the default one for an around advice. Advices types, signature rules and overloading will be covered in Chapter 4, Advices .