PostgreSQL has a data source implementation, but it is not the
class you mentioned. The docs are:
http://candle.pha.pa.us/main/writings/pgsql/sgml/jdbc-datasource.html
You can get the DataSource in the JDBC 3 builds on the
jdbc.postgresql.org web site. The implementation is not yet included in
the JDBC 2 builds, because it only supports JDK 1.3 and the JDBC 2 builds
target JDK 1.2. However, I have been assured that the final PostgreSQL
7.3 driver set will include a JDBC 2 build with the data sources. In the
mean time, if you need to use a JDBC 2 driver with the data sources, you
can build from CVS.
PostgreSQL itself does not support the two-phase commit protocol,
so there is no XADataSource implementation. I'm not sure if that's what
you mean by JTA/JTS. In general, lacking an XADataSource, that's best
left to the app server instead of the JDBC driver. Many app servers (such
as JBoss and WebLogic) can fake an XADataSource implementation for a
driver that doesn't support it, which works fine when everything works
fine, but causes heuristic exceptions otherwise.
In any case, the pooling DataSource described in the documentation
above is enough to cause the connections to be reused, if that's what you
need.
Aaron
On Thu, 7 Nov 2002 postgres@jpelly.net wrote:
> I keep seeing references to org.postgresql.PostgresqlDataSource but I've
> checked all the latest pre-built JDBC jars from
> http://jdbc.postgresql.org and can't find it. Is this class not ready
> for "prime time" yet? Or do you have to get the source and build
> manually to get this class?
>
> Also, is JTA/JTS supported yet? I've seen a post
> (http://archives.postgresql.org/pgsql-jdbc/2002-06/msg00118.php) that
> indicates this is tied to PostgresqlDataSource, which is why I'm asking
> about the class. Does anybody have any indication on how solid this
> support is?
>
> I'm building a simple JTA interface impl to go with the postgresql
> connection's so that it basically causes the connection to be reused,
> but I'd love to go with a prebuilt solution that implements the entire
> range of JTS/JTA features from the pros.
>
> Thanks,
> John Pelly
>
>
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