Paul,
Wow! No static methods/data, no file i/o, no threads, no sockets, no native
code. Sounds like EJB is an unruly teenager about to take the family car
out on a date. Geeesh, just neuter the EJB application! I may end up
sticking with my trusty old RMI server.
-Ron
> -----Original Message-----
> From: A mailing list for Enterprise JavaBeans development
> [mailto:[EMAIL PROTECTED]]On Behalf Of Paul Hodgetts
> Sent: Tuesday, October 26, 1999 12:47 PM
> To: [EMAIL PROTECTED]
> Subject: Re: EJB Restrictions-- threads, io
>
>
> Ron Yust wrote:
>
> > So, this means your EJB bean should not use any 3rd party Java classes
> > because you can't guarantee they abide by the restrictions?
>
> Yes, the restrictions seem to apply to the entire closure of the bean
> methods' call graph. The implications of this are big, and it places
> a lot of restrictions on what an EJB can use and do. The connector
> architecture is being developed as one means to provide a container-
> safe way to access outside resources. Other facilities will likely
> be needed as well.
>
> > What happens if you use a class that violates the spec? Does my
> > EJB bean actually fail or can it just apologize to the container
> > for being a bad bean?
>
> That depends what it does. You might get lucky and nothing will
> happen. If the class created a thread, and that thread crosses
> over a container boundary that needs to access the thread context,
> it could refuse access to a resource, or crash. If the class used
> up some resources that the container needed to control, the
> container could get upset.
>
> I think the spec writers would call the results "undefined." In
> some cases, an apology might be sufficient. In others, flowers and
> a nice dinner might be required. ;-)
>
> Paul
>
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