modifying source at runtime - jython case
Alan Kennedy
alanmk at hotmail.com
Sat Nov 5 06:51:29 EST 2005
[Jan Gregor]
> I want to apply changes in my source code without stopping jython
> and JVM. Preferable are modifications directly to instances of
> classes. My application is a desktop app using swing library.
>
> Python solutions also interest me.
>
> Solution similiar to "lisp way" is ideal.
OK, I'll play 20 questions with you.
How close is the following to what you're thinking?
begin SelfMod.java -------------------------------------------
//************************************************************
import org.python.util.PythonInterpreter;
import org.python.core.*;
class SelfMod
{
static String my_class_source =
"class MyJyClass:\n" +
" def hello(self):\n" +
" print 'Hello World!'\n";
static String create_instance = "my_instance = MyJyClass()\n";
static String invoke_hello = "my_instance.hello()";
static String overwrite_meth =
"def goodbye():\n"+
" print 'Goodbye world!'\n" +
"\n" +
"my_instance.hello = goodbye\n";
public static void main ( String args[] )
{
PythonInterpreter interp = new PythonInterpreter();
interp.exec(my_class_source);
interp.exec(create_instance);
interp.exec(invoke_hello);
interp.exec(overwrite_meth);
interp.exec(invoke_hello);
}
}
//************************************************************
end SelfMod.java ---------------------------------------------
need-to-complete-my-coursework-for-telepathy-101-ly y'rs
--
alan kennedy
------------------------------------------------------
email alan: http://xhaus.com/contact/alan
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