WebSphere Application Server - Parked connection ?

Author

Parked connection ?

Ben_

2006-04-27, 8:08 am

Hello,

Reading the technote "Support of smart connection handles"
(http://www-1.ibm.com/support/docvie...uid=swg21236318), it says:
"
WebSphere Resource Adapter (RA) is smart handle enabled. Basically the
extra connection is used for connection parking as outlined in the
specification.
"

The developerWorks article it references discusses "smart handle" and I
think I understand it now :-).

But I've not been lucky enough to find more on:
* "connection parking" -> what's this ?
* and where it is "outlined in the specification" -> would it be in JDBC or
JCA ?

Thanks.

David Currie

2006-04-27, 8:08 am

Prior to JCA 1.5 there was no specified mechanism for dissociating a
connection handle from a managed connection when the end of the method
was reached so that the managed connection could be reused elsewhere.
The smart handle support provided a WebSphere Application Server
specific extension to support this. For resource adapters that do not
support smart handles, the connection handle is associated with (or
"parked" on) this extra managed connection at the end of the method. So,
although you end up with one extra managed connection, it means that all
the other managed connections aren't tied to connection handles that are
left open across methods.

Regards,
David