Calvin Austin wrote:
Rick McGuire wrote:
Andy Piper wrote:
At 04:26 PM 10/26/2005, Rick McGuire wrote:
The most critical need right now is to have a replacement to the
Sun ORB that would allow portability to other JVM
impelementations. The lack of a full-function compliant ORB is the
main factor locking Geronimo in to the Sun 1.4.2 JVM.
I think the general view of the CORBA support is that of a
"necessary evil". It is required for J2EE certifcation, but is not
generally seen as critical to most Geronimo deployments. My
personal view of the priorities is "get it working, get it
portable". Issues such as additional uses or higher peformance are
things to consider after the primary requirements are fullfilled.
Can I ask why portability is critical? Most VM's (with one notable
exception) use the Sun ORB so depending on it doesn't seem such a
big deal to me, especially if its a necessary evil. I agree support
for J2SE 5.0 is essential, but its pretty easy to write code that
supports both 1.4 and 5.0 ORBs.
Actually, then don't. The IBM JVM certainly doesn't, and I don't
believe JRocket does either. And it is not particularly easy to
write code code that supports both 1.4 and 5.0 Sun ORBs because of
difficulties hooking in the SSL support. You also run into issues
trying to build the code, since for any given JVM, only one of the
versions of the ORB adaptors will compile correctly.
Technically the J2SE 5.0 reference ORB was supposed to be portable and
interoperable and pluggable as Sun uses a modified version of that ORB
for its own products. I've tried to forget the headaches we had with
CORBA experience with JDK 5.0 but if there is anything I can do to
make the Geronimo completely work with JDK 5.0 I'm all ears
The real challenge with Geronimo was enabling the ORB to use an SSL
transport. With the 1.4.2 version, this could only be done by
using/referencing Sun implementation classes. Most of those classes
have been renamed to other packages (many with the word "legacy" in the
package name), and some don't exist in any form. If the 5.0 ORB has
portable interfaces for hooking in SSL, writing the appropriate adaptors
would be an interesting exercise. I've got a pretty good understanding
of how the 1.4.2 ORB is hooked in, if you need assistance understanding
what it's doing.
regards
calvin
andy
- Re: Trifork CORBA Rick McGuire
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