Hi Dave,
MyDataObject is likely mapped to get its PK from the related "master"
object. The exception means that the "master" object does not yet have
a PK yet when MyDataObject is committed. So how is the PK generation
set for the master object entity? Are you using auto-incremented PKs
by any chance? Do you see the master saved before MyDataObject in the
SQL log?
Andrus
On Jul 30, 2008, at 11:43 PM, Dave Dombrosky wrote:
I am currently getting a strange exception when trying to commit some
objects to the db. I'm hoping someone here can help me figure it out.
org.apache.cayenne.CayenneRuntimeException: [v.3.0-SNAPSHOT May 16
2008 12:28:23] Can't extract a master key. Missing key (id), master ID
(<ObjectId:MyDataObject, TEMP:001A1A0065510101>)
at org.apache.cayenne.access.DataDomainSyncBucket
$PropagatedValueFactory.create(DataDomainSyncBucket.java:303)
at org.apache.cayenne.query.BatchQuery.getValue(BatchQuery.java:
171)
at
org
.apache
.cayenne.query.InsertBatchQuery.getValue(InsertBatchQuery.java:62)
at
org
.apache
.cayenne
.access
.trans
.InsertBatchQueryBuilder
.getParameterValues(InsertBatchQueryBuilder.java:83)
at
org
.apache.cayenne.access.jdbc.BatchAction.runAsBatch(BatchAction.java:
121)
at
org
.apache
.cayenne.access.jdbc.BatchAction.performAction(BatchAction.java:80)
at
org
.apache
.cayenne
.access.DataNodeQueryAction.runQuery(DataNodeQueryAction.java:58)
at
org.apache.cayenne.access.DataNode.performQueries(DataNode.java:230)
at
org
.apache
.cayenne
.access.DataDomainFlushAction.runQueries(DataDomainFlushAction.java:
227)
at
org
.apache
.cayenne
.access.DataDomainFlushAction.flush(DataDomainFlushAction.java:145)
at
org.apache.cayenne.access.DataDomain.onSyncFlush(DataDomain.java:821)
at org.apache.cayenne.access.DataDomain
$2.transform(DataDomain.java:788)
at
org
.apache.cayenne.access.DataDomain.runInTransaction(DataDomain.java:
847)
at org.apache.cayenne.access.DataDomain.onSync(DataDomain.java:
785)
at
org.apache.cayenne.access.DataContext.flushToParent(DataContext.java:
1164)
at
org.apache.cayenne.access.DataContext.commitChanges(DataContext.java:
1066)
Any idea what this means? I'm using some 1:1 mappings on the PK of
this table, and also some cayenne inheritance, so it's possible I set
something up wrong.
-Dave
