Scott, jon, and anyone else interested in opl
--- Dave <[EMAIL PROTECTED]> wrote:
> Just FYI -
>
> You guys may already be aware of this, but I'd
> thought
> I'd throw it out anyway. There's an open-source
> project (under a Free-BSD
> style license) called Enhydra. They have an Object
> to Relational tool
> called
> DODs that has some nice features to include an Swing
> GUI. Take a look:
>
> http://www.enhydra.org/doc/DODS.ht
Based on this info, it's a good time for an opl status
report.
OPL has CRUD (create, retreive, update, delete)
functionality. I've lightly exercise most of it. So,
we have this, criteria and sql statement generation.
Some work remaining to support more data types.
The functionality for associated data (the uda maps)
is coded but untested. The system really needs a
class map loader before spending time on testing this.
Useful functionality that is not implemented is
something for generating OIDs, something to use
timestamps for the "optomistic" locking, transactions,
and a loader for the class maps.
Only difficult job there is transactions.
I don't see any value in the other stuff in Scott's
paper. Java natively supports most of it. Only other
thing is Proxies. Definitely, people should use
proxies in applications. But, using full-fledged
objects for proxies is simpler, less confusing, and no
more work to implement.
What's really missing is tools to do the work that DOD
does. Something is need to generate classes, class
maps, and sql table create scripts.
-- george
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