[
https://issues.apache.org/jira/browse/OPENJPA-673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13507510#comment-13507510
]
Petrus Viljoen commented on OPENJPA-673:
----------------------------------------
This issue still persists in version 2.2.1 , unlike Vermeulen's comment of
25/Jan/11 14:48 , My version field And ID is populated in the database.
Basic flow of the cose
command = new xxxCommand();
// ... setup instance
em.persist(Command);
em.flush(); // We must Flush to get the correct ID for the command, it is
autogenerated
em.refresh(command); // We refresh for justin's sake
command.setClientTransactionID(command.generateTransactionIdentifier()); //
populate the TransactionID , THIS USES THE command's ID te generate a unique
String.
... generate xml request
self.processCommandSetRequest(command,requestXml) // In a new
TransactionContext to ensure data is commited to store
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
public <F extends AbstractEppCommand> F processCommandSetRequest(final F
command, final String request_xml) {
// Accessing the ID propery BEFORE the merge is ok, ID and Version is
populated and correct.
final F command_ = eManager.merge(command);
// Accessing the ID property After the Merge will cause the exception
command_.setRequestXML(request_xml);
// IF you did not access the ID property it will now cause the
exception during flush , if you don't explicitly flush, the container gets
runtime exception during transaction commit
eManager.flush();
eManager.detach(command_);
return command_;
}
[code]
Caused by: <openjpa-2.2.1-r422266:1396819 nonfatal user error>
org.apache.openjpa.persistence.InvalidStateException: Primary key field
com.bluedigital.ejb.epp.DomainCheckCommand.domainCheckCommandID of
com.bluedigital.ejb.epp.DomainCheckCommand@1ef5a718 has non-default value. The
instance life cycle is in PNewState state and hence an existing non-default
value for the identity field is not permitted. You either need to remove the
@GeneratedValue annotation or modify the code to remove the initializer
processing.
at
org.apache.openjpa.util.ApplicationIds.assign(ApplicationIds.java:489)
at
org.apache.openjpa.util.ApplicationIds.assign(ApplicationIds.java:469)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.assignObjectId(JDBCStoreManager.java:762)
at
org.apache.openjpa.kernel.DelegatingStoreManager.assignObjectId(DelegatingStoreManager.java:135)
at
org.apache.openjpa.kernel.StateManagerImpl.assignObjectId(StateManagerImpl.java:600)
at
org.apache.openjpa.kernel.StateManagerImpl.assignField(StateManagerImpl.java:691)
at
org.apache.openjpa.kernel.StateManagerImpl.beforeAccessField(StateManagerImpl.java:1660)
at
org.apache.openjpa.kernel.StateManagerImpl.accessingField(StateManagerImpl.java:1591)
at
com.bluedigital.ejb.epp.DomainCheckCommand.pcGetdomainCheckCommandID(DomainCheckCommand.java)
at
com.bluedigital.ejb.epp.DomainCheckCommand.getId(DomainCheckCommand.java:53)
at
com.bluedigital.ejb.logic.RegistryTransportManager.processCommandSetRequest(RegistryTransportManager.java:677)
[code]
> Entity using Generated Value for primary key and a Version field and no
> DetachedStae fails to merge
> ----------------------------------------------------------------------------------------------------
>
> Key: OPENJPA-673
> URL: https://issues.apache.org/jira/browse/OPENJPA-673
> Project: OpenJPA
> Issue Type: Bug
> Reporter: Pinaki Poddar
>
> Entities using GeneratedValue for primary key, a version field an dno
> detached state fails to merge.
> The issue lies with identifying :"what makes a new instance?"
> It is not obvious why VersionAttachStrategy does not use version field to
> detect newness. Instead it depends on detached state which is obviously null
> for instances not using a Detached State.
> Can someone shade some light on why VersionAttachStrategy ignores version
> field to detect newness?
>
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