RC3 Query Caching problem

Question

I have a situation with RC3 where cached queries appear not to be
getting invalidate when they should.
The data model is this:
- UserSecurity has a Collection of UserAssignments. A UserAssignments
contains a long which is the ID of another persistent instance.
Sequence of events, each in a separate transaction:
1. query UserAssignments where referencedItemId == 1234, get one result.
2. add a new UserAssignment, with its referencedItemId set to 1234, to
the assignments Collection of a persistent UserSecurity instance.
3. repeat the first query, still only one result, the original one.
If I disable caching by commenting out the
com.solarmetric.kodo.DataCacheClass line in kodo.properties, it all
works. It also worked fine with 2.4.
My kodo.properties looks like:
javax.jdo.option.RetainValues: true
javax.jdo.option.RestoreValues: true
javax.jdo.option.Optimistic: true
javax.jdo.option.NontransactionalWrite: false
javax.jdo.option.NontransactionalRead: true
javax.jdo.option.Multithreaded: true
javax.jdo.option.MsWait: 5000
javax.jdo.option.MinPool: 1
javax.jdo.option.MaxPool: 10
javax.jdo.option.IgnoreCache: false
javax.jdo.option.ConnectionUserName: @USER_NAME@
javax.jdo.option.ConnectionURL: jdbc:oracle:thin:@@DB_HOST_NAME@:1521:db1
javax.jdo.option.ConnectionPassword: password
javax.jdo.option.ConnectionDriverName: oracle.jdbc.driver.OracleDriver
javax.jdo.PersistenceManagerFactoryClass:
com.solarmetric.kodo.impl.jdbc.ee.EEPersistenceManagerFactory
com.solarmetric.kodo.impl.jdbc.WarnOnPersistentTypeFailure: true
com.solarmetric.kodo.impl.jdbc.SequenceFactoryClass:
com.solarmetric.kodo.impl.jdbc.schema.DBSequenceFactory
com.solarmetric.kodo.impl.jdbc.FlatInheritanceMapping: true
com.solarmetric.kodo.impl.jdbc.AutoReturnTimeout: 10
com.solarmetric.kodo.LicenseKey: XXXXXXXXXXXXXXX
com.solarmetric.kodo.EnableQueryExtensions: true
com.solarmetric.kodo.DefaultFetchThreshold: -1
com.solarmetric.kodo.impl.jdbc.DictionaryProperties:NameTruncationVersion=1
com.solarmetric.kodo.ee.ManagedRuntimeProperties=TransactionManagerName=java:/TransactionManager
#com.solarmetric.kodo.DataCacheClass=com.solarmetric.kodo.runtime.datacache.plugins.CacheImpl
com.solarmetric.kodo.RemoteCommitProviderClass=com.solarmetric.kodo.runtime.event.impl.SingleJVMRemoteCommitProvider
com.solarmetric.kodo.DataCacheProperties= CacheSize=5000
com.solarmetric.kodo.impl.jdbc.UseBatchedStatements=true
com.solarmetric.kodo.impl.jdbc.UsePreparedStatements=false
com.solarmetric.kodo.impl.jdbc.StatementCacheMaxSize=100
Thanks for any help you can give.
Tom

Answer 1

Here's some more info:
Metadata for UserSecurity:
<class name="UserSecurityImpl">
<field name="_assignments">
<collection element-type="UserAssignmentImpl"/>
</field>
</class>
Metadata for the ManagedAssignment:
<class name="ManagedAssignment"
persistence-capable-superclass="au.com.oakton.jcore.application.security.UserAssignmentImpl">
<field name="_managingAssignmentHistoryItems">
<collection element-type="ManagingAssignmentHistoryItem"/>
<extension vendor-name="kodo" key="inverse"
value="_managedAssignment"/>
</field>
</class>
<class name="UserAssignmentImpl"
persistence-capable-superclass="AssignmentImpl">
<class name="AssignmentImpl" persistence-capable-superclass="RoleSetImpl"/>
<class name="RoleSetImpl">
<field name="_roles">
<collection element-type="RoleHistoryItem"/>
</field>
</class>
Code for adding ManagedAssignment to UserSecurityImpl:
public synchronized void addAssignment(ManagedAssignment a, User user)
_assignments.add(a);
Code for querying ManagedAssignments:
public synchronized Collection getAssignmentsForItem(long itemId)
if (itemId == -1)
return Collections.EMPTY_LIST;
Long id = new Long(itemId);
PersistenceManager pm = null;
try
pm = Persistence.getManager();
Query q = pm.newQuery(AssignmentImpl.class);
q.setFilter("_itemId == itemId");
q.declareParameters("Long itemId");
return new ArrayList((Collection) q.execute(id));
finally
Persistence.close(pm);