Re: Question about WebSphere & CMP

[Frances Stewart <francess@xxxxxxxxxx>]

It uses JDBC.


Frances Stewart
WebSphere Application Server for iSeries
    External web site: http://www.iseries.ibm.com/websphere
    Team web site: http://w3.rchland.ibm.com/~was
E-mail: francess@xxxxxxxxxx
Tie-line: 553-2795, External: 507 253-2795
IBM Rochester



                                                                           
             Tom Daly                                                      
             <TDaly@SDDSystems                                             
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                                       Question about WebSphere & CMP      
             10/25/2004 09:20                                              
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             Java Programming                                              
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How does Websphere handle container managed persistence?  Does it use JDBC
to
interface with the database or does it go directly to the db via the same
interfaces
used by the HLLs?

I'm very curious about this because I have a sticking point about SQL
related
technologies for data-entry oriented apps.  (for reporting ok, for other
than
that...  but let's skip that discussion for now!)

If it does use JDBC then I'd be inclined to use BMP and get at the DB with
either
the javatoolbox or integrate with a service program or some such.  I have
to tell
you that currently I have no real experience with WebSphere, just "book
knowledge",
so any and all info, suggestions and insight is most welcome.  "Native"
access to
the db is a unique difference from other platforms that, for performance
reasons, I
think would be worth exploiting.

Oh - and before I forget to mention it, there's interesing reading at
http://publib.boulder.ibm.com/infocenter/wbihelp/index.jsp?topic=/com.ibm.wasee.doc

click on "Container Managed Persistence over Anything" in the "Server
Foundation"
chapter.   Makes me think that perhaps you could use CMP but have the
performance of
directly accessing the database.


Tom D.


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