RE: [OJB-developers] weekly status update

[<ll...@li...>]

Hi Thomas,

Sadly IBM doesn't support JDK 1.3 yet in its otherwise excellent
development environment VisualAge for Java.
Most IBM deployment environment also seems to suggest using JDK 1.2.

I didn't get a chance to try VAJ 4 yet. If that supports JDK 1.3 then I
think you can drop the JDK 1.2 support without further notice.
Otherwise there will be lots of JDK 1.2 users out there for a couple of
more years.

I saw that the JDOM project used ANT to replace the 1.2 collection
classes with the plug-in that came with 1.1. That might be possible in
this project also. I don't know if they dropped 1.1 support too by now,
but they were so kind as to support it at least until ibm came with VAJ
3.5

/Lazlo

(sorry if this is a repost)

-----Original Message-----
From: obj...@li...
[mailto:obj...@li...] On Behalf
Of Thomas Mahler
Sent: 1. januar 1997 00:20
To: objectbridge
Subject: [OJB-developers] weekly status update


Hi all,

here is the second edition of the weekly OJB status update.
See the attached html file to see the status of your bug and feature
requests.

In the last week I used the JDK 1.3 dynamic Proxy concept to build an
improvement of the OJB virtual proxy concept. Now you don't have to
implement the proxy classes yourself, but can declare the usage of
dynamic proxies in the the XML repository.

This works great and avoids a lot of non-productive work from for
app-developers using OJB.

There is only one problem: this feature requires JDK 1.3 or later.

I see 2 option to deal with this situation:
1. just say OJB needs JDK 1.3 or later. Period.
2. try to support a JDK 1.2 compliant version without this feature.

Of course 1.) will save me a lot of work. But maybe some of you still
rely on JDK 1.2 in certain production environments ? Please tell me if
you need OJB running under JDK 1.2.

The easiest way to provide a JDK 1.2 compliant version would be to use
compiler switches in the code. Unfortunately Java does not have a
preprocessor.
What is the best solution in Java to provide this kind of preprocessing?
Can we use ANT for this  work? Any hints are most welcome.

regards,

--Thomas