[jboss-user] [Javassist] - Any way to reload or rebuild a class with different methods/member data?

[Mike Stoddart]

Mike Stoddart [https://community.jboss.org/people/stodge] created the discussion

"Any way to reload or rebuild a class with different methods/member data?"

To view the discussion, visit: https://community.jboss.org/message/798833#798833

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I can successfully create class definitions at runtime using Javassist, but I also need the ability to rebuild the definitions to add/remove/change member data and their getters/setters. Is this at all possible? I'm using a custom class loader for the classes that I generate. I was hoping I could do something like this:

- create class definition in custom class pool ( http://www.csg.ci.i.u-tokyo.ac.jp/~chiba/javassist/html/javassist/ClassPool.html#ClassPool(javassist.ClassPool) ClassPool( http://www.csg.ci.i.u-tokyo.ac.jp/~chiba/javassist/html/javassist/ClassPool.html ClassPool parent))
- add to custom class loader

Then later:

- retrieve CtClass instance and detach it from the pool
- remove from custom class loader
- create new class definition with the same class path
- add to same custom class loader

Or alternatively:

- retrieve CtClass instance and detach it from the pool
- remove all fields and methods
- create new fields and methods

Is this at all possible? Thanks
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