How to look up a TxDataSource bound in weblogic JNDI

HI,
How can i look up a TxDataSource bound in weblogic JNDI. When i access it using
javax.sql.XADataSourse ds = (XADataSourse)context.lookUp(jndiName)
..it gives me classcast exception.
and if i lookup it using javax.sql.DataSource like below
javax.sql.DataSourse ds = (DataSourse)context.lookUp(jndiName)
then while executing my sql on the connection object it throws some other excepiton
like below
java.sql.SQLException: weblogic.rmi.extensions.RemoteRuntimeException: Unexpected Exception - with nested exception:
[weblogic.rjvm.PeerGoneException: ; nested exception is:
java.io.EOFException]
at weblogic.jdbc.rmi.SerialStatement.executeQuery(SerialStatement.java:92)
at TestTransactionMgr.main(TestTransactionMgr.java:46)
How can i solve this problem.. Actually my application needs to handle distributed transactions so i need to implement XADataSource.
can somebody help me iin this.
Thanks & Regards
Akhil Nagpla

Hi Akhil did u get the solution for distributed database /
I am also working on same but i dint get the solution yet. Please if u have any solution for the same do mail me to [email protected] and [email protected]
here goes my problem !
we have 2 oracle databases.
I am using Stateless EJB and container managed transaction !
And inside a ejb method i am getting 2 different connection from 2 different datasources ok !
Since am using container managed transaction it starts transaction automatically when the method begins,
and the transaction ends when the method exit out ok !
Now i insert into 2 databases and when the method exits it gives an error listed below !
i am using NON emulated datasource with class name "com.evermindsql.DriverManagerDataSource"
and looking up this datasource in the EJB with name specified in location attribute of datasource !
"com.evermind.server.rmi.OrionRemoteExcepttion: Transaction was rolled back: javax.transaction.SystemException: could not commit: error code 29540- for additional error code check the oracle log file"
For distributed database we configured DBLINK also !
If u can give more info regarding DBlink it will be better ! Even after we set DBlink we are getting error !
Please tell us how to configure the database !
Oracle 9iAS
Oracle 9i DB
regards
Sreenath.V

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How can i look up a TxDataSource bound in Weblogic JNDI

          HI,
          How can i look up a TxDataSource bound in weblogic JNDI. When i access it using
          javax.sql.XADataSourse ds = (XADataSourse)context.lookUp(jndiName)
          .it gives me classcast exception.
          and if i lookup it using javax.sql.DataSource like below
          javax.sql.DataSourse ds = (DataSourse)context.lookUp(jndiName)
          then while executing my sql on the connection object it throws some other excepiton
          like below
          java.sql.SQLException: weblogic.rmi.extensions.RemoteRuntimeException: Unexpected
          Exception - with nested exception:
          [weblogic.rjvm.PeerGoneException: ; nested exception is:
                  java.io.EOFException]
          at weblogic.jdbc.rmi.SerialStatement.executeQuery(SerialStatement.java:92)
          at TestTransactionMgr.main(TestTransactionMgr.java:46)
          How can i solve this problem.. Actually my application needs to handle distributed
          transactions so i need to implement XADataSource.
          can somebody help me iin this.
          Thanks & Regards
          Akhil Nagpla


          HI,
          How can i look up a TxDataSource bound in weblogic JNDI. When i access it using
          javax.sql.XADataSourse ds = (XADataSourse)context.lookUp(jndiName)
          .it gives me classcast exception.
          and if i lookup it using javax.sql.DataSource like below
          javax.sql.DataSourse ds = (DataSourse)context.lookUp(jndiName)
          then while executing my sql on the connection object it throws some other excepiton
          like below
          java.sql.SQLException: weblogic.rmi.extensions.RemoteRuntimeException: Unexpected
          Exception - with nested exception:
          [weblogic.rjvm.PeerGoneException: ; nested exception is:
                  java.io.EOFException]
          at weblogic.jdbc.rmi.SerialStatement.executeQuery(SerialStatement.java:92)
          at TestTransactionMgr.main(TestTransactionMgr.java:46)
          How can i solve this problem.. Actually my application needs to handle distributed
          transactions so i need to implement XADataSource.
          can somebody help me iin this.
          Thanks & Regards
          Akhil Nagpla

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Andreas Koerner wrote:
>
We deploy a servlet (in a single .war archive) establishing a RMI connection to
an external Java object bound into weblogic JNDI (WLS 6.1).
We get a ClassCastException on invoking JNDI lookup:
Servlet failed with Exception>
java.lang.ClassCastException: $Proxy67
at com.thyssenkrupp.tks.tnt.admin.rmi.ClientServlet.init(ClientServlet.java:81)
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at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:641)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:586)
at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:366)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:240)
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at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:1959)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
Curiously we don't observe these problems when we include all the classes of the
remote application in the classpath of the WebLogic Server. Actually we want to
avoid including external classes in weblogic.classpath for (hot) deployment reasons.
It also seems that problems don't occur when accessing the remote object from
an independent client application.
We expect this to be a classloader conflict within WLS 6.1
Does anybody know a solution to our problems?
Thanks for suggestions
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How to look up a TxDataSource bound in weblogic JNDI

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