adding a method and a variable with BCEL

[lemonj]

Hi there,

I need to add a variable (i.e. value) and a getter (i.e. getValue) to
MyObject.class. The example code in the distribution package showed
only how to modify existing methods. Is there a simple way to do it. Or
may be other byte code injectors?
Thanks a lot,

 

[Thomas Hawtin]

I need to add a variable (i.e. value) and a getter (i.e. getValue) to
MyObject.class. The example code in the distribution package showed
only how to modify existing methods. Is there a simple way to do it. Or
may be other byte code injectors?

IIRC, create FieldGen and MethodGen objects through their constructors,
using the ConstantPoolGen from the ClassGen. When it is all set up, call
getField/getMethod and then addField/addMethod on ClassGen.

ObjectWeb ASM is much simpler.

Tom Hawtin