"Craig R. McClanahan" <[EMAIL PROTECTED]> writes:

> On Thu, 26 Jun 2003, David N. Welton wrote:

> > Hi guys, I saw this:

> > http://www.jcp.org/en/jsr/detail?id=223

> >         The specification may include a Java API that can be used,
> >         possibly through JNI, by an scripting language engine to
> >         access the desired Java objects.

> > Can anyone give us a more concrete description of what this is
> > really about?

> The basis for this is exactly what that sentence states -- scripting
> language users have said they would like to be able to access
> business logic and data objects inside a servlet-based application
> from their scripts, in a portable manner.  The point of the JSR is
> to make that sort of thing possible.

Part of what made me ask was the 'may' and 'possibly'.  They don't
sound very convinced.

> Accessing Java objects defined in the system class loader doesn't
> require anything new -- JNI provides all the necessary hooks.  But,
> to interact with web app resources, you need to do things like load
> classes from the webapp's class loader, and gain access to the
> ServletContext instance, and perhaps even do nice things like
> utilize the servlet container's session mechanism for scripting
> languages that don't have such a notion.  Such things can be
> designed and built for a particular server today, but there's no
> standard approach; hence the JSR.

Neat, it could be interesting indeed - thankyou for the clear
explanation Craig.

-- 
David N. Welton
   Consulting: http://www.dedasys.com/
     Personal: http://www.dedasys.com/davidw/
Free Software: http://www.dedasys.com/freesoftware/
   Apache Tcl: http://tcl.apache.org/

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