All convention info should probably be added to the RDB DAS User's
Guide:
http://wiki.apache.org/ws/Tuscany/TuscanyJava/DAS_Java_Overview/RDBDAS_Java_User_Guide
Thanks,
--Kevin
haleh mahbod wrote:
Hi Adriano,
It would be good to document any conventions that others need to know
about
also on this page.
http://cwiki.apache.org/TUSCANY/das-java-project.html
Thanks,
Haleh
On 4/6/07, Adriano Crestani <[EMAIL PROTECTED]> wrote:
Just to be sure: Is the Convetion Over Configuration over "id" and
"xxx_id"
columns, more specifically the "id" keyword, case sensitive?
Adriano Crestani
On 4/5/07, Adriano Crestani <[EMAIL PROTECTED]> wrote:
>
> Thanks Kelvin ; )(again)
>
> Adriano Crestani
>
> On 4/4/07, Kevin Williams <[EMAIL PROTECTED]> wrote:
> >
> > Hello Adriano,
> >
> > This use of convention is actually for the "write" side of
things. A
PK
> >
> > is needed to generate correct update commands based on the SDO
Change
> > Summary. In the absence of a defined PK, the DAS will assume any
column
> > named ID is the PK and use that in the generated statement.
> >
> > Also, we have tried to avoid dependence on Database Schema metadata
for
> > information such as PKs and FKs. The reason for this is that
they are
> > sometimes not defined in the database.
> >
> > Thanks,
> >
> > --Kevin
> >
> >
> > Adriano Crestani wrote:
> >
> > > I was wondering why the "id" field being mapped as a table PK is
> > > defined as
> > > "Convention Over Configuration". Because in java it is possible to
> > > retrieve
> > > the table PK only using java.sql.DatabaseMetaData.getPrimaryKeys
> > (String
> > > catalog, String schema, String table) method.
> > >
> > > Does the "id" Convention Over Configuration exist only because
some
> > DBMS
> > > does not support the
java.sql.DatabaseMetaData.getPrimaryKeys(String
> > > catalog, String schema, String table) method?
> > >
> > > Adriano Crestani
> > >
> >
> >
> >
> >
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