code: protected Object getProxyFromResultSet() throws PersistenceBrokerException
      {
          // 1. get Identity of current row:
          Identity oid = getIdentityFromResultSet();
  
          // 2. return a Proxy instance:
          return getBroker().createProxy(getItemProxyClass(), oid);
      }
docs: Reads primary key information from current RS row and generates a
  
  corresponding Identity, and returns a proxy from the Identity.
  
  @throws PersistenceBrokerException
  if there was an error creating the proxy class