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[aspectj-users] Re: Using AJ to change program flow
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Jim:
I am fairly new to aspects as well, but from what I understand you need
to do the following:
- define your pointcut to match the log call. I guess you should use
the call keyword.
- have the logIsOn boolean in your aspect and set it there
- write an around advice and depending on the evaluation of logIsOn
either use proceed() or not.
Andreas
Jim Carroll wrote:
I have been playing with AJ; doing some simple things like adding tracing to my code base but I wanted to write something that would change the program flow based on some criteria and I'm not sure if it's supported. As an example I have a lot of code with log statements like:
log.log("some" + " complex" + " string" + " statement);
and I wanted to use AJ to effectively insert a conditional in front of each statement like:
if (logIsOn) log.log("some" + " complex" + " string" + " statement);
which would conditionally change the program flow. I can't seem to figure out how to do this (or if it is possible).
Any suggestions?
Thanks
Jim Carroll
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