ABOUT CACHE REFRESHING

Question

We just migrated our EJB from 1.1 to 2.0 and Toplink 3.6 to 4.6. We refresh Toplink cache when some extenal system change the data in our database. It was working great before migration but it stopped working after that. Is there anybody who can help us in that area.

Answer 1

Hi Doug,
We are using Weblogic 6.x with SP4 and Toplink 4.6 with EJB 2.0(CMP2.0 - with local inteface). As I mentioned in the first mail we refresh the Toplink cache when External system change our Oracle Database so that user can see the current data. Also we are using HARDCASHWEAKIDENTITY MAP for that.
We are using following sample code for refreshing the cache :
1)
Session session = getTopLinkSession();
session.validateCache();
session.removeFromIdentityMap(memberKey, com.deltadental.cps.subscriber.sms.business.entity.member.MemberBean.class);
2) Here is sample code for our Tolink project:
public Descriptor buildMemberBeanDescriptor() {
     Descriptor descriptor = new Descriptor();
     descriptor.setJavaClass(com.deltadental.cps.subscriber.sms.business.entity.member.MemberBean.class);
     descriptor.addTableName("T8_MEMBER");
     descriptor.addPrimaryKeyFieldName("T8_MEMBER.T8_MEMBER_ID");
     // Descriptor properties.
     descriptor.useHardCacheWeakIdentityMap();
     descriptor.setIdentityMapSize(100);
     descriptor.useRemoteHardCacheWeakIdentityMap();
     descriptor.setRemoteIdentityMapSize(100);
     descriptor.setSequenceNumberFieldName("T8_MEMBER.T8_MEMBER_ID");
     descriptor.setSequenceNumberName("MEMBER_SEQ");
     VersionLockingPolicy lockingPolicy = new VersionLockingPolicy();
     lockingPolicy.setWriteLockFieldName("T8_MEMBER.WRITELOCK");
     lockingPolicy.storeInObject();
     descriptor.setOptimisticLockingPolicy(lockingPolicy);
     descriptor.setAlias("MemberBean");
     // Query manager.
     descriptor.getQueryManager().checkCacheForDoesExist();
     //Named Queries
     //Named Query -- findByPrimaryKey
     ReadObjectQuery namedQuery0 = new ReadObjectQuery(com.deltadental.cps.subscriber.sms.business.entity.member.MemberBean.class);
     namedQuery0.setName("findByPrimaryKey");
     namedQuery0.setCascadePolicy(1);
     namedQuery0.setQueryTimeout(0);
     namedQuery0.setShouldUseWrapperPolicy(true);
     namedQuery0.setShouldBindAllParameters(false);
     namedQuery0.setShouldCacheStatement(false);
     namedQuery0.setSessionName("null");
     namedQuery0.setShouldMaintainCache(true);
     namedQuery0.setShouldRefreshIdentityMapResult(false);
     namedQuery0.conformResultsInUnitOfWork();
     namedQuery0.setLockMode((short)0);
     namedQuery0.addArgument("primaryKey", java.lang.Long.class);
     descriptor.getQueryManager().addQuery("findByPrimaryKey", namedQuery0);