RE: [tcljava-user] JACL Script inside EJB

[Sai G. M N <Sai...@pl...>]

Wow, This was a quick and a good explanation. Have been poring over this for
a week. Would be very much interested in helping to make the getting started
tutorial for Jacl. Sure. 
Right now, is there any documentation on getting started? I have bee able to
see only "New Features", "F.A.Q" and "Man Pages" apart from "Download" at
this URL: http://dev.ajubasolutions.com/software/java/
Would be glad to read if there is any "Getting Started" information
available already!

Thanks anyway. Will try what ever you have said below and hope it helps!
Sai

> -----Original Message-----
> From:	Mo DeJong [SMTP:md...@cy...]
> Sent:	Wednesday, November 08, 2000 4:18 PM
> To:	tcl...@li...
> Subject:	Re: [tcljava-user] JACL Script inside EJB
> 
> On Wed, 8 Nov 2000, Sai Geetha M N wrote:
> 
> > Hi
> > 
> > I am trying to run a JACL script inside an EJB (Enterprise JavaBean). I
> pass
> > the name of the script as an input paramater. Then the EJB reads that
> file
> > and runs it using the Interp.evalFile Command. So Far, so good
> > However, I want to be able to pass a Java Object (or may be a TclObject)
> to
> > that script and the script should work on that object. Basically, the
> object
> > would contain name-value pairs, which are the arguments for the script
> to
> > work on.
> 
> It sounds like you want to take some Java info and wrap it up
> in a TclList. You would then set a variable in Tcl to this
> TclList.
> 
> > 1. Is this kind of a scenario implementable in JACL?
> 
> Sure.
> 
> > 2. If so, will any JACL script be able to understand Java Collection
> Objects
> > or should I convert them into TclObjects? Is this possible and how?
> 
> You would want to take the data out of a Java vector and put it
> into a TclList. You Java code would just allocate a TclList object
> and then loop over the Java elements adding them to the TclList.
> 
> Something like (this is just off the top of my head):
> 
> TclObject to = TclList.newInstance()
> Vector v = ...
> 
> while (! done) {
>  TclObject str = TclList.newInstance((String) v.elementAt(i) );
>  TclList.append(interp, list, str);
> }
> 
> > 3. Once I convert it to a TclObject, how do I make the JACL script
> access
> > this object? CAn I pass it as a parameter to the script?
> 
> Set a variable in the interp. See the interp.setVar() command docs.
> These docs live in tcljava/docs/TclJavaLib.
> 
> It seems clear that we need better "getting started" documentation.
> Would you be willing to take notes as you learn this stuff and
> help with a short tutorial later?
> 
> Mo DeJong
> Red Hat Inc
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