return execute(_storeQuery, ex, params);
if (operation == OP_DELETE)
return delete(_storeQuery, ex, params);
if (operation == OP_UPDATE)
return update(_storeQuery, ex, params);
throw new UnsupportedException();
} catch (OpenJPAException ke) {
throw ke;
} catch (Exception e) {
throw new UserException(e);
} finally {