Hi, Are you manually setting the version field in your application?
-Patrick On 9/17/07, Gene Woo <[EMAIL PROTECTED]> wrote: > Hi, > > I got the following error messages from application server. I am very > confused on that. Because this is an isolated entity without any > relationship to the rest of entities. > > <4|true|0.9.7> org.apache.openjpa.persistence.InvalidStateException: Attempt > to set column "event.update_version" to two different values: (class > java.lang.Integer)"2", (class java.lang.Integer)"3" This can occur when you > fail to set both sides of a two-sided relation between objects, or when you > map different fields to the same column, but you do not keep the values of > these fields in synch. > > Note: This update_version is a mapped-super class's property: @ > [EMAIL PROTECTED](name = "update_version") private Integer _version; > > And I found the code only performed query and new/persist object. Not intent > to update or merge object. > > The error was found before perform query. As you know, system will flush > before query. Here is the stack trace: > > at org.apache.openjpa.jdbc.sql.PrimaryRow.setObject(PrimaryRow.java > :335) > at org.apache.openjpa.jdbc.sql.RowImpl.setObject(RowImpl.java:501) > at kodo.jdbc.meta.strats.ColumnPerLockGroupVersionStrategy.update( > ColumnPerLockGroupVersionStrategy.java:166) > at org.apache.openjpa.jdbc.meta.Version.update(Version.java:294) > at > org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.updateIndicators( > AbstractUpdateManager.java:308) > at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.update( > AbstractUpdateManager.java:291) > at > org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.populateRowManager( > AbstractUpdateManager.java:149) > at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush( > AbstractUpdateManager.java:82) > at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush( > AbstractUpdateManager.java:69) > at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush( > JDBCStoreManager.java:511) > at org.apache.openjpa.kernel.DelegatingStoreManager.flush( > DelegatingStoreManager.java:127) > at org.apache.openjpa.datacache.DataCacheStoreManager.flush( > DataCacheStoreManager.java:506) > at org.apache.openjpa.kernel.DelegatingStoreManager.flush( > DelegatingStoreManager.java:127) > at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1970) > at org.apache.openjpa.kernel.BrokerImpl.flushSafe(BrokerImpl.java > :1868) > at org.apache.openjpa.kernel.BrokerImpl.flush(BrokerImpl.java:1639) > at org.apache.openjpa.kernel.QueryImpl.isInMemory(QueryImpl.java > :948) > at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:782) > at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:761) > at org.apache.openjpa.kernel.DelegatingQuery.execute( > DelegatingQuery.java:528) > at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java > :222) > at org.apache.openjpa.persistence.QueryImpl.getSingleResult( > QueryImpl.java:282) > > -- > Best Regards, > > Gene Wu > -- Patrick Linskey 202 669 5907
