[Jython-users] RE: [Jython-dev] Calling script objects

[Jeff E. <JEm...@lg...>]

Make your jython object implement a Java interface.  Like this:

MyInterface.java:
public interface MyInterface {
  public void run(Object msg);
}

foo.py:
import MyInterface
class foobar(MyInterface):
  def run(self,msg):
    print msg

Then create the object in Java like this:

// interp is the interpreter.
interp.execfile("foo.py");
PyObject po = interp.eval("foobar()");
MyInterface mi = (MyInterface)po.__tojava__(MyInterface.class);

Now you can call run on mi from Java code:

mi.run("Hey, this is cool!");



> -----Original Message-----
> From: Robert DiFalco [mailto:rdi...@tr...]
> Sent: Thursday, July 24, 2003 3:40 PM
> To: jyt...@li...
> Subject: [Jython-dev] Calling script objects
> 
> 
> Is it possible, say through reflection to instantiate and call methods
> on Script objects that are NOT compiled into (.java) files?
> 
> Can you give a simple example?
> 
> Currently, I have something like this in my script file. 
> Let's say it is
> called foo.py.
> 
> Maybe foo.py has a class something like this:
> 
> class foobar:
>     def __init__(self):
>         # do some init stuff
>         return
> 
>     def run(self, msg):
>         print msg
> 
> if argv()[1] == "run":
>     obj = foobar()
>     obj.run( argv()[2] )
> 
> So, what I do now is create an interpreter and run the script sending
> "run" and <msg> as command line arguments. Is there a way to 
> just create
> this object and pass it the run method with the msg argument?
> 
> R.
> 
> 
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