You could have your legacy code wrapped in it's own JVM. You could then write a
stateless EJB to access the JVM using RMI or I/O streams.
Tom Valesky wrote:
> I thought that the spec explicitly precluded using native code from within
> EJB.
>
> <spec quote>
> Section 18.1.2
> The enterprise bean must not attempt to load a native library.
> </spec quote>
>
> Has this changed? I couldn't find the string "JNI" anywhere in the spec.
>
> Thanks,
>
> Tom
>
> On Fri, 21 Apr 2000, Andrea Prampolini wrote:
>
> > Sorry Michael, could you be more precise about the "EJB spec" part?
> > I need to do exactly the same as Glenn, but can't find
> > documentation/tutorials...
> >
> > andrea
> >
> > >"Previously, Glenn R Kronschnabl said;"
> > >> Hi,
> > >>
> > >> Are there any good (detailed) examples on how to incorporate 3rd party
> > >> native libraries into the EJB layer? What I want to do is have a EJB
> > call
> > >> a legacy app, and I am unclear on how this is exactly done.
> > >>
> > >> Do I have to write a corba layer on top of the native part, then use
> > >> an orb like omniOrb?
> > >>
> > >> Then, do I write a stateless session bean and defer the methods
> > >> to the corba object?
> > >>
> > >> Will this work in all EJB containers? RI, WebLogic? Do I need
> > >> WebLogic Enterprise? Are there any deployment issues? I assume
> > >> the corba piece runs outside of the container, correct?
> > >>
> > >
> > > The EJB model for what you want to do is talked about in the
> > > EJB spec. Essentially you write an entity bean which does
> > > not map to a database, rather it acts as a wrapper for your
> > > legacy application. You can think of the legacy application
> > > as acting a bit like a database in the sense that it will
> > > presumably be maintaining it's own data store and access
> > > functions.
> > > Depending on your legacy calling needs you can probably
> > > write a bean managed persistance entity bean which has empty
> > > load and store routines.
> > >
> > > ...michael
> > >
> > >----
> > >Michael Richmond
> > >Information and Communication Sciences e-mail: [EMAIL PROTECTED]
> > >Macquarie University, Australia phone: (+61 2) 9850 6346
> >
> > ===========================================================================
> > To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
> > of the message "signoff EJB-INTEREST". For general help, send email to
> > [EMAIL PROTECTED] and include in the body of the message "help".
> >
>
> ============================================================================
> Tom Valesky -- [EMAIL PROTECTED] -- http://www.patriot.net/users/tvalesky
>
> ===========================================================================
> To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
> of the message "signoff EJB-INTEREST". For general help, send email to
> [EMAIL PROTECTED] and include in the body of the message "help".
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff EJB-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
