3 Replies Latest reply on Jun 22, 2004 11:23 PM by chiba

Trapping variable assignments

craigugoretz Jun 21, 2004 8:55 PM

Hello,

Is there a way using JavaAssist to catch all the times that the value of a variable is changed in the course of the use of a class? When the variable value change is caught, can new code be inserted at that point to persist the class using an O/R persistence framework like the Object Relational Bridge, for example? I apologize if this question is naive, but I am completely new to Javaassist and trying to make sense of the documentation.

Sincerely,
Craig Ugoretz

1. Re: Trapping variable assignments

chiba Jun 22, 2004 11:42 AM (in response to craigugoretz)

You can use Javassist to catch changes the value
of a field but not a local variable. The way to
catching the changes of the value of a local
variable is currently not provided.
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2. Re: Trapping variable assignments

craigugoretz Jun 22, 2004 12:08 PM (in response to craigugoretz)

Thank you for your response. Let me ask you this - is there more documentation on how to use $_ and the other "metavariables"? I think I have things figured out to that point but could use more examples. The only documentation I have found is the first PDF paper listed on the web site.
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3. Re: Trapping variable assignments

chiba Jun 22, 2004 11:23 PM (in response to craigugoretz)

Oh, please look at the tutorial, which is also
listed on the web site.
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