Toplink Cache problem

Question

I am using JDev of following version "Studio Edition Version 10.1.3.1.0.3984
Build JDEVADF_10.1.3.0_NT_061009.1404.3984".
I had an application with JSF and Toplink and am facing issues with toplink cache mechanism while TESTING IN JDEV . Following is the scenario.
1) When clicking on a link, say 'Get status' , i am querying data from database and displaying in JSF.
2) Later, i am updating particular record.
3) when i click on the link again (Get status), updated data is not gettng reflected.
Here is the code to get data and i am calling this method whenever i am clicking on 'Get status' link.
public Vector getMaintenanceStatusList(){
Vector lockersStatus = null;
try {
Session sess = ToplinkDBUtils.getTopLinkSession();
sess.validateCache();
ReadAllQuery query = new ReadAllQuery();
query.dontCheckCache();
query.dontMaintainCache();
query.setReferenceClass(LockerMaintenanceStatus.class);
query.useDistinct();
lockersStatus = sess.readAllObjects(LockerMaintenanceStatus.class);
} catch (DatabaseException e) {
e.printStackTrace();
//******** Printing the updated value.
for (Iterator i = lockersStatus.iterator();i.hasNext();){
LockerMaintenanceStatus tmp = (LockerMaintenanceStatus)i.next();
System.out.println("Status value :: "+tmp.getStatus());
return lockersStatus;
Here, i am getting old status value for second time though i have updated the database with new status. (scenario if i work in same browser with same toplink session)
i am getting updated values only when i restart the JDEV oc4j.
Please let me know how i can solve the problem.
Thanks!
Veeraswami K

Answer 1

Veeraswami,
In your code you are constructing a query but are not executing it. Instead you are simply calling session.readAllObjects. The result of this call will be the cached versions (based on default cache config).
I would recommend doing:
ReadAllQuery query = new ReadAllQuery(LockerMaintenanceStatus.class);
query.refreshIdentityMapResult();
lockersStatus = (Vector) sess.executeQuery(query);The other settings you had used would bypass the cache and not result in its results being refreshed.
Doug