Re: [xmlblaster] Ldbc

[Marcel Ruff <mr at marcelruff.info>]

Peter Bennett wrote:
> Marcel Ruff wrote:
>
> > Peter Bennett wrote:
> >
> > > Greetings
> > >
> > > Have uploaded the Ldbc stuff...
> > >
> > > I ran a few more tests yesterday and today...
> > > I think I have a problem with one topic test.
> > > testVolatile...
> > >
> > > I have no doubt it will need some more work...
> > >
> > > I already need to add a couple of notes to the ldbc requirement...
> > >
> > > (1) JDK 1.4 only.
> >
> >
> >
> > Hu, does this mean that xmlBlaster is not compiling / running
> > with JDK 1.3 / 1.2 anymore?
>
>
>
> No... Just the ldbc driver is compiled under 1.4. I just read the ldbc 
> howto again and I missed something... It can be compiled under JDK1.3. I 
> better redo the jar under 1.3. Should I upload a set of docs for ldbc?

Probably its better to add those links to the ldbc requirement.

> > > (2) No Oracle support in ldbc.jar
> >
> >
> >
> > Well, we still have the native Oracle support.
>
>
> Ldbc does support Oracle... I don't however. Its scary.
>  From the ldbc howto... The Oracle JDBC driver needs to be in the build 
> class path. I don't have a recent Oracle jdbc driver. Oracle users need 
> to roll there own. Or somebody in the team download and build ldbc.

I have Oracle installed when i find time i'll look at it.

> > > I think I need some Oracle files to compile Oracle support into the 
> > > ldbc driver.
> > >
> > > As you will see the code is virtually identical to the commontable 
> > > plugin. The part I am not 100% sure of is the routine to delete stuff.
> >
> >
> >
> > diff JdbcConnectionPool.java LdbcConnectionPool.java
> > diff JdbcManagerCommonTable.java LdbcManagerCommonTable.java
> > diff JdbcQueueCommonTablePlugin.java LdbcQueueCommonTablePlugin.java
> > diff PreparedQuery.java LdbcPreparedQuery.java
> >
> > It seems that only JdbcManagerCommonTable is replaced by 
> > LdbcManagerCommonTable,
> > only LdbcManagerCommonTable.java has two places with additional code.
> >
> > We should somehow merge the files to avoid having duplicate code
> > and duplicate errors, probably having a common interface class
> > and having a factory to create with or without ldbc. Any idea?
>
>
> Yes... I am sure Michele could look at the diffs and figure something 
> out... But. Its just I hate getting him to make changes to support 
> Ldbc/MySQL or whatever. I can put watches on the relevant files and do 
> the diffs.

Yes/No :-) The problem is that everything should be automatically
tested - otherwise one never knows if something broke or us outdated ...

One day we'll find a smart solution for this ;-)

There are many modules in xmlBlaster already (just think of the
python clients, JMX parts, Peter Antmans' jboss extensions ...) -
we definitely need automatic testcases for each piece and avoid
code duplication - how else shall we keep everything together?

> > We need to discuss if we really want to drop JDK 1.3 and 1.2 support.
>
>
>  From the ldbc howto... Most likely JDK 1.2 also works.
>
> I have no problems if it goes no further at present. It is just a go at 
> abstraction. I will continue to work with it to see if I can improve and 
> develop it. It is most certainly less strain on me if the development 
> code is in the repository and it opens up the chance for others to look 
> at it and test on there platforms if they are brave enough.

OK, thanks for all this, we look towards a bright ldbc future ...

regards,

Marcel

> > > ldbc does not support cascade delete so I added some code and am not 
> > > sure I am deleting enough...
> > >
> > > Regards


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