Hello All,
I am using oracle 9i and Weblogic 7.0. I have a table that has a unique key constraint on one column , say 'Col1' and i am using a CMP to read,create and update data in this table. The problem description is as follows.
I have JTable that display the data from the above said table. The user can modify the existing data and insert new data that will be reflected in the DB using the CMP. Let us say the following are displayed
ROW1
-------
Col1 : 3
Col2 : 'ABC'
Col3 : 1 (Primary key in the table)
Now the user modifies the above row and inserts a new record. Now the following will be the display
ROW1 (Modified)
----------
Col1 : 4
Col2 : 'ABC'
Col3 : 1 (Primary key in the table)
ROW2 (New)
-----------
Col1 : 3
Col2 : 'DEF'
Col3 : 2 (Primary key in the table)
When the above data is saved i do the following in the Code
a) Session Bean
---------------
For (all the data in the Jtable)
{
try
{
home.findByPrimaryKey(Col3);
remote.update(Col1,Col2);
}
catch(FinderException fe)
{
home.create(Col1,Col2,Col3);
}
}
When the above code is run During the first loop the update runs succesfully (i.e update old value of 3 with 4 ) but during the 2nd loop the create (i.e Insert new value 3) gives me the unique key violated exception. The following is the stack trace
-------------------------------------------------------------
<Oct 25, 2004 11:36:22 AM IST> <Info> <
EJB> <010049> <EJB Exception in method: ejbPostCreate: java.sql.SQLException: ORA-00001: unique constraint (UAT_CYCLE2_1.UK_PYMT_DET_TX) violated
java.sql.SQLException: ORA-00001: unique constraint (UAT_CYCLE2_1.UK_PYMT_DET_TX) violated
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:579)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1892)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:1093)
at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:2130)
at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:2013)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2869)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:608)
at weblogic.jdbc.jts.Statement.executeUpdate(Statement.java:509)
at de.dl.ucs.contract.entity.TerminalPaymentsCMP_kbdoop__WebLogic_CMP_RDBMS.__WL_create(TerminalPaymentsCMP_kbdoop__WebLogic_CMP_RDBMS.java:1435)
at de.dl.ucs.contract.entity.TerminalPaymentsCMP_kbdoop__WebLogic_CMP_RDBMS.ejbPostCreate(TerminalPaymentsCMP_kbdoop__WebLogic_CMP_RDBMS.java:1353)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.ejb20.manager.DBManager.create(DBManager.java:1023)
at weblogic.ejb20.manager.DBManager.localCreate(DBManager.java:904)
at weblogic.ejb20.internal.EntityEJBLocalHome.create(EntityEJBLocalHome.java:180)
at de.dl.ucs.contract.entity.TerminalPaymentsCMP_kbdoop_LocalHomeImpl.create(TerminalPaymentsCMP_kbdoop_LocalHomeImpl.java:73)
at de.dl.ucs.contract.helperclasses.SubsegmentMaintanence.saveTerminalPayments(SubsegmentMaintanence.java:697)
at de.dl.ucs.contract.controller.SubsegmentSL.saveSubsegmentDetails(SubsegmentSL.java:570)
at de.dl.ucs.contract.controller.SubsegmentSL.processFinanceSubsegmentSave(SubsegmentSL.java:1601)
at de.dl.ucs.contract.controller.SubsegmentSL_kgzv4j_EOImpl.processFinanceSubsegmentSave(SubsegmentSL_kgzv4j_EOImpl.java:498)
at de.dl.ucs.contract.events.FinanceSubsegmentBEH.saveSubsegmentDetails(FinanceSubsegmentBEH.java:749)
at de.dl.ucs.contract.events.FinanceSubsegmentBEH.processEvent(FinanceSubsegmentBEH.java:232)
at de.dl.ucs.framework.flowcontroller.ControllerBean.delegateAction(ControllerBean.java:229)
at de.dl.ucs.framework.flowcontroller.ControllerBean_riqvk4_EOImpl.delegateAction(ControllerBean_riqvk4_EOImpl.java:46)
at de.dl.ucs.framework.flowcontroller.ControllerBean_riqvk4_EOImpl_WLSkel.invoke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:441)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:114)
at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:382)
at weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManager.java:726)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:377)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:30)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:234)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:210)
>
<Oct 25, 2004 11:36:22 AM IST> <Info> <EJB> <010051> <EJB Exception during invocation from home: de.dl.ucs.contract.controller.SubsegmentSL_kgzv4j_HomeImpl@3c8d34 threw exception: javax.ejb.TransactionRolledbackLocalException: EJB Exception:; nested exception is: java.sql.SQLException: ORA-00001: unique constraint (UAT_CYCLE2_1.UK_PYMT_DET_TX) violated
-------------------------------------------------------------------------
Please help me with this, as far as i am concerned since both update and create is in the same transaction the update on the row must be visible to the create and hence there shouild not be any problem.....
thanks in advance
Shanki
