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

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Reply: 1 2 3 4 5 6 7 8

?
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".
>

===========================================================================
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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
". 
> 


 
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