Two phase commit transaction using WSAD5.0 and DB2

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Two phase commit transaction using WSAD5.0 and DB2

Two phase commit transaction using WSAD5.0 and DB2

2005-04-27 - By Anuj Kumar

Back

Reply: 1 2 3 4 5 6 7 8

?
yaa ur right but m getting theexception saying that

[4/27/05 14:15:45:401 GMT+05:30] 3b325053 WebGroup E SRVE0026E: [Servlet
Error]-[A]: java.lang.ClassCastException: com.ibm.ws.rsadapter.jdbc
.WSJdbcDataSource
at hello.A.getDataSource(A.java:201)
while looking and casting the jndi.

thanks
anuj

On Wed, 27 Apr 2005 Naslai,Shobha(Cognizant) wrote :
>
>The JDK 1.4 Doc says
>
>public interface XADataSource
>A factory for XAConnection objects that is used internally. An object
>that implements the XADataSource interface is typically registered with
>a naming service that uses the Java Naming and Directory InterfaceTM
>(JNDI).
>
>
>It means that whoever uses the JNDI to lookup the object should cast
>that to XADataSource right?
>
>Pls clarify.
>
>Thanks
>Shobha Naslai
>
>-- --Original Message-- --
> From: A mailing list for Java(tm) 2 Platform, Enterprise Edition
>[mailto:J2EE-INTEREST@(protected)] On Behalf Of Hrishikesh Barua
>Sent: Wednesday, April 27, 2005 1:48 PM
>To: J2EE-INTEREST@(protected)
>Subject: Re: Two phase commit transaction using WSAD5.0 and DB2
>
>Hi Anuj,
> Application programmers are not supposed to use the
>XADataSource interface directly - it's used by the TransactionManager
>internally (in this case, the TM inside your appserver). You should use
>the DataSource interface in your application - and the appserver will
>take care of the transaction management transparently, provided you use
>either the declarative or programmatic model.
> If you're using EJB's you can use either of them; if you're using web
>components you can use the UserTransaction API to manage your
>transactions. You datasource will automatically participate in those
>transactions (it's the responsibility of the appserver to make it
>participate in 2PC).
> Also, the appserver never exposes the actual DataSource from the driver
>- this is to provide services like connection pooling and transaction
>management.
> Depending on the appserver, you might also have to mark the datasource
>as transactional sometimes.
>
>Regards
> Hrish
>-- -- Original Message -- --
> From: Anuj <mailto:anujkumar73@(protected)> Kumar
>To: A <mailto:J2EE-INTEREST@(protected)> mailing list for Java(tm)2
>Platform,Enterprise Edition
>Cc: Hrishikesh <mailto:hrishikesh.barua@(protected)> Barua
>Sent: Wednesday, April 27, 2005 12:54 PM
>Subject: Re: Re: Two phase commit transaction using WSAD5.0 and DB2
>
>
>hi Harish,
>thanx for ur reply but
> javax.sql.DataSource db2Datasource = null;
>does not work in this case since i need the instance of either
>DB2XADataSource or XADataSource class to proceed with 2 phase commit
>transaction Api's and DB2XADatasource class does not implement
>DataSource so we can't type cast too.
>any other solution ???
>
>Thanks and Regards,
>Anuj
>
>
>On Wed, 27 Apr 2005 Hrishikesh Barua wrote :
> >Hello,
> > You should cast the object that you look up to a javax.sql.DataSource
>object. Using any proprietary APIs means your app will not run on any
>other appserver. In this case the object that you get back from the
>lookup is a WAS datasource wrapper - which is correct.
> >
> >Declare
> > javax.sql.DataSource db2Datasource = null;
> >
> >Regards
> > Hrish
> > -- -- Original Message -- --
> > From: Anuj Kumar
> > To: J2EE-INTEREST@(protected)
> > Sent: Wednesday, April 27, 2005 11:46 AM
> > Subject: Two phase commit transaction using WSAD5.0 and DB2
> >
> >
> >
> > Hi All,
> >
> > I am trying to implement (prototype) 2 phase commit transaction
>protocol using wsad5.1 and db2.i configured the DB2XADatasource provider
>in wsad and when i try yo run my program i get
> > [4/27/05 11:27:13:296 GMT+05:30] 1accbc8a WebGroup E SRVE0026E:
>[Servlet Error]-[A]: java.lang.ClassCastException:
>com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource
> > at hello.A.getDataSource(A.java:196)
> >
> > while looking up and casting the DB2XADatasource.
> >
> > My method which is supposec to return DB2XADatasource is..
> >
> > public static DB2XADataSource getDataSource(String jndiName) {
> >
> > InitialContext ctx = null;
> > DB2XADataSource db2Datasource = null;
> > Connection conn = null;
> >
> > try {
> > ctx = new InitialContext();
> >
> > db2Datasource = (DB2XADataSource)
>ctx.lookup(jndiName);
> >
> >
> > } catch (NamingException ne) {
> > ne.printStackTrace();
> > }
> >
> > return db2Datasource ;
> > }
> >
> > }
> >
> > can anyone Help me out ???
> >
> > Thanks a lotttt
> > Anuj
> >
> >
> >
> >
> >
>========================================================================
>=== To unsubscribe, send email to listserv@(protected) and include in
>the body of the message "signoff J2EE-INTEREST". For general help, send
>email to listserv@(protected) and include in the body of the message
>"help".
> >
> >=======================================================================
>====
> >To unsubscribe, send email to listserv@(protected) and include in the
>body
> >of the message "signoff J2EE-INTEREST". For general help, send email
>to
> >listserv@(protected) and include in the body of the message "help".
> >
>
>
> <http://clients.rediff.com/signature/track_sig.asp>
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>"help".
>
>
>
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-mail and destroy all copies of the original message.
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or copying of this email or any action taken in reliance on this e-mail is
strictly
>prohibited and may be unlawful.
>
> Visit us at http://www.cognizant.com
>
>===========================================================================
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yaa ur right but m getting theexception saying that 
 
[4/27/05 14:15:45:401 GMT+05:30] 3b325053 WebGroup      E
SRVE0026E: [Servlet Error]-[A]: java.lang.ClassCastException: com.ibm.ws
.rsadapter.jdbc.WSJdbcDataSource 
     at hello.A.getDataSource(A.java:201) 
while looking and casting the jndi. 
 
thanks 
anuj 
 
On Wed, 27 Apr 2005 Naslai,Shobha(Cognizant) wrote : 
> 
>The JDK 1.4 Doc says 
> 
>public interface XADataSource 
>A factory for XAConnection objects that is used internally. An object 
>that implements the XADataSource interface is typically registered with 
>a naming service that uses the Java Naming and Directory InterfaceTM 
>(JNDI). 
> 
> 
>It means that whoever uses the JNDI to lookup the object should cast 
>that to XADataSource right? 
> 
>Pls clarify. 
> 
>Thanks 
>Shobha Naslai 
> 
>-- --Original Message-- -- 
> From: A mailing list for Java(tm) 2 Platform, Enterprise Edition 
>[mailto:J2EE-INTEREST@(protected)] On Behalf Of Hrishikesh Barua 
>Sent: Wednesday, April 27, 2005 1:48 PM 
>To: J2EE-INTEREST@(protected) 
>Subject: Re: Two phase commit transaction using WSAD5.0 and DB2 
> 
>Hi Anuj, 
>          Application programmers are not
supposed to use the 
>XADataSource interface directly - it's used by the TransactionManager 
>internally (in this case, the TM inside your appserver). You should use 
>the DataSource interface in your application - and the appserver will 
>take care of the transaction management transparently, provided you use 
>either the declarative or programmatic model. 
>  If you're using EJB's you can use either of them; if you're using
web 
>components you can use the UserTransaction API to manage your 
>transactions. You datasource will automatically participate in those 
>transactions (it's the responsibility of the appserver to make it 
>participate in 2PC). 
>  Also, the appserver never exposes the actual DataSource from the
driver 
>- this is to provide services like connection pooling and transaction 
>management. 
>  Depending on the appserver, you might also have to mark the
datasource 
>as transactional sometimes. 
> 
>Regards 
>  Hrish 
>-- -- Original Message -- -- 
> From: Anuj <mailto:anujkumar73@(protected)>  Kumar 
>To: A <mailto:J2EE-INTEREST@(protected)>  mailing list for Java
(tm)2 
>Platform,Enterprise Edition 
>Cc: Hrishikesh <mailto:hrishikesh.barua@(protected)>  Barua 
>Sent: Wednesday, April 27, 2005 12:54 PM 
>Subject: Re: Re: Two phase commit transaction using WSAD5.0 and DB2 
> 
> 
>hi Harish, 
>thanx for ur reply but 
>        javax.sql.DataSource db2Datasource = null; 
>does not work in this case since i need the instance of either 
>DB2XADataSource or XADataSource class to proceed with 2 phase commit 
>transaction Api's and DB2XADatasource class does not implement 
>DataSource so we can't type cast too. 
>any other solution ??? 
> 
>Thanks and Regards, 
>Anuj 
> 
> 
>On Wed, 27 Apr 2005 Hrishikesh Barua wrote : 
> >Hello, 
> >  You should cast the object that you look up to a javax.sql
.DataSource 
>object. Using any proprietary APIs means your app will not run on any 
>other appserver. In this case the object that you get back from the 
>lookup is a WAS datasource wrapper - which is correct. 
> > 
> >Declare 
> >          javax.sql.DataSource db2Datasource
= null; 
> > 
> >Regards 
> >  Hrish 
> >  -- -- Original Message -- -- 
> >  From: Anuj Kumar 
> >  To: J2EE-INTEREST@(protected) 
> >  Sent: Wednesday, April 27, 2005 11:46 AM 
> >  Subject: Two phase commit transaction using WSAD5.0 and DB2 
> > 
> > 
> > 
> >  Hi All, 
> > 
> >  I am trying to implement (prototype) 2 phase commit transaction
 
>protocol using wsad5.1 and db2.i configured the DB2XADatasource provider 
>in wsad and when i try yo run my program i get 
> >  [4/27/05 11:27:13:296 GMT+05:30] 1accbc8a WebGroup   
  E SRVE0026E: 
>[Servlet Error]-[A]: java.lang.ClassCastException: 
>com.ibm.ws.rsadapter.jdbc.WSJdbcDataSource 
> >        at hello.A.getDataSource(A.java:196) 
> > 
> >  while looking up and casting the DB2XADatasource. 
> > 
> >  My method which is supposec to return DB2XADatasource is.. 
> > 
> >  public static DB2XADataSource getDataSource(String jndiName) {
 
> > 
> >            InitialContext ctx = null;
 
> >            DB2XADataSource
db2Datasource = null; 
> >            Connection conn = null; 
> > 
> >            try { 
> >                  ctx =
new InitialContext(); 
> > 
> >                 
db2Datasource = (DB2XADataSource) 
>ctx.lookup(jndiName); 
> > 
> > 
> >            } catch (NamingException ne)
{ 
> >                  ne
.printStackTrace(); 
> >            } 
> > 
> >            return db2Datasource ; 
> >        } 
> > 
> >  } 
> > 
> >  can anyone Help me out ??? 
> > 
> >  Thanks a lotttt 
> >  Anuj 
> > 
> > 
> > 
> > 
> > 
>======================================================================== 
>=== To unsubscribe, send email to listserv@(protected) and include in 
>the body of the message "signoff J2EE-INTEREST". For general help
, send 
>email to listserv@(protected) and include in the body of the message 
>"help". 
> > 
> >======================================================================
= 
>==== 
> >To unsubscribe, send email to listserv@(protected) and include in the
 
>body 
> >of the message "signoff J2EE-INTEREST".  For general
help, send email 
>to 
> >listserv@(protected) and include in the body of the message &quot
;help". 
> > 
> 
> 
>  <http://clients.rediff.com/signature/track_sig.asp> 
>======================================================================== 
>=== To unsubscribe, send email to listserv@(protected) and include in 
>the body of the message "signoff J2EE-INTEREST". For general help
, send 
>email to listserv@(protected) and include in the body of the message 
>"help". 
> 
> 
> 
>This e-mail and any files transmitted with it are for the sole use of the
intended recipient(s) and may contain confidential and privileged information.
 
>If you are not the intended recipient, please contact the sender by reply e
-mail and destroy all copies of the original message. 
>Any unauthorised review, use, disclosure, dissemination, forwarding,
printing or copying of this email or any action taken in reliance on this e
-mail is strictly 
>prohibited and may be unlawful. 
> 
>  Visit us at http://www.cognizant.com 
> 
>===========================================================================
 
>To unsubscribe, send email to listserv@(protected) and include in the body
 
>of the message "signoff J2EE-INTEREST".  For general help,
send email to 
>listserv@(protected) and include in the body of the message "help
". 


 
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