code: public ObjectEnvelope get(Object pKey, boolean isNew)
      {
          PersistenceBroker broker = transaction.getBroker();
          Identity oid = broker.serviceIdentity().buildIdentity(pKey);
          return get(oid, pKey, isNew);
      }
docs: retrieve an objects ObjectEnvelope state from the hashtable.
  If no ObjectEnvelope is found, a new one is created and returned.
  
  @return the resulting ObjectEnvelope