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From "Jeremy Bauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-1853) iSeries DB2 problem with using @GeneratedValue(strategy=GenerationType.IDENTITY)
Date Mon, 25 Oct 2010 15:45:21 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12924591#action_12924591
] 

Jeremy Bauer commented on OPENJPA-1853:
---------------------------------------

In OpenJPA 2.x, a JDBC 3.0 enhancement for returning auto generated keys from a prepared statement
was enabled by default based upon the JDBC driver level.  I've found that the toolbox driver
running against a V5R4 system does not support this functionality on the server side.  This
function does exist on the server side on V7R1 (and possibly V6), but only seems to work with
the non-XA driver.  That's why I've been having issues only in an app server environment running
against a V7R1 server.

The good news is that there's a simple workaround.  Adding this property to your persistence.xml
will go back to the "old way" of doing business.

<property name="openjpa.jdbc.DBDictionary" value="db2(supportsGetGeneratedKeys=false)"/>

I'll work on a code fix that checks the iSeries version in addition to the JDBC driver level
and possibly whether the driver is XA (if that turns out to be a limitation rather than a
bug) to determine how this value should be set.

> iSeries DB2 problem with using @GeneratedValue(strategy=GenerationType.IDENTITY)
> --------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1853
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1853
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: sql
>    Affects Versions: 2.0.0, 2.0.1
>         Environment: DB2 on IBM iSeries V5R4, jt400.jar (JTOpen)
>            Reporter: Andreas Tomik
>            Assignee: Jeremy Bauer
>            Priority: Critical
>         Attachments: createTable.sql, JSETest.zip
>
>
> I get the following error when I try to insert new row to a table that has a "generated
always Identity" Column.
> Exception in thread "main" <openjpa-2.0.1-r422266:989424 fatal store error> org.apache.openjpa.persistence.RollbackException:
An error occurred attempting to invoke JDBC 3 method.  Your driver or database may not support
JDBC 3 features.
> 	at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:584)
> 	at de.meyerwerft.qs.laborpruef.laborprobe.dbaccess.LaborprobeBean.crtTest(LaborprobeBean.java:38)
> 	at de.meyerwerft.test.JSE_Client.jlm_run(JSE_Client.java:35)
> 	at de.meyerwerft.test.JSE_Client.<init>(JSE_Client.java:10)
> 	at de.meyerwerft.test.JSE_Client.main(JSE_Client.java:17)
> Caused by: <openjpa-2.0.1-r422266:989424 nonfatal general error> org.apache.openjpa.persistence.PersistenceException:
An error occurred attempting to invoke JDBC 3 method.  Your driver or database may not support
JDBC 3 features.
> 	at org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:1963)
> 	at org.apache.openjpa.kernel.LocalManagedRuntime.commit(LocalManagedRuntime.java:81)
> 	at org.apache.openjpa.kernel.BrokerImpl.commit(BrokerImpl.java:1479)
> 	at org.apache.openjpa.kernel.DelegatingBroker.commit(DelegatingBroker.java:925)
> 	at org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:560)
> 	... 4 more
> Caused by: org.apache.commons.lang.exception.NestableRuntimeException: An error occurred
attempting to invoke JDBC 3 method.  Your driver or database may not support JDBC 3 features.
> 	at org.apache.openjpa.lib.jdbc.DelegatingConnection.invokeJDBC3(DelegatingConnection.java:597)
> 	at org.apache.openjpa.lib.jdbc.DelegatingConnection.prepareStatement(DelegatingConnection.java:577)
> 	at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator$LoggingConnection.prepareStatement(LoggingConnectionDecorator.java:571)
> 	at org.apache.openjpa.lib.jdbc.DelegatingConnection.prepareStatement(DelegatingConnection.java:571)
> 	at org.apache.openjpa.lib.jdbc.DelegatingConnection.prepareStatement(DelegatingConnection.java:571)
> 	at org.apache.openjpa.lib.jdbc.DelegatingConnection.prepareStatement(DelegatingConnection.java:563)
> 	at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.prepareStatement(PreparedStatementManagerImpl.java:287)
> 	at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushAndUpdate(PreparedStatementManagerImpl.java:112)
> 	at org.apache.openjpa.jdbc.kernel.BatchingPreparedStatementManagerImpl.flushAndUpdate(BatchingPreparedStatementManagerImpl.java:81)
> 	at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInternal(PreparedStatementManagerImpl.java:99)
> 	at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush(PreparedStatementManagerImpl.java:87)
> 	at org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager.flush(ConstraintUpdateManager.java:550)
> 	at org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager.flush(ConstraintUpdateManager.java:106)
> 	at org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager.flush(BatchingConstraintUpdateManager.java:59)
> 	at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:103)
> 	at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:76)
> 	at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:731)
> 	at org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:131)
> 	at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:2139)
> 	at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java:2037)
> 	at org.apache.openjpa.kernel.BrokerImpl.beforeCompletion(BrokerImpl.java:1955)
> 	... 8 more
> Caused by: java.lang.reflect.InvocationTargetException
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.apache.openjpa.lib.jdbc.DelegatingConnection.invokeJDBC3(DelegatingConnection.java:593)
> 	... 28 more
> Caused by: java.sql.SQLException: The driver does not support this function.
> 	at com.ibm.as400.access.JDError.throwSQLException(JDError.java:415)
> 	at com.ibm.as400.access.AS400JDBCConnection.prepareStatement(AS400JDBCConnection.java:2210)
> 	... 33 more
> I have the following in persistence.xml
> ...
> <property name="openjpa.jdbc.DBDictionary" value="db2"/> 
> <property name="openjpa.ConnectionDriverName" value="com.ibm.as400.access.AS400JDBCDriver"/>
> <property name="openjpa.ConnectionURL" value="jdbc:as400://myserver/myschema"/>
> ...
> In Version 1.2.3 this function works fine.
> Thank you,
> Andreas Tomik

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