// transaction
if(!autoCommit) {
try {
if(transConn==null) {
ORMDatasourceConnection dc=new ORMDatasourceConnection(pc,session);
if(isolation!=Connection.TRANSACTION_NONE)
dc.getConnection().setTransactionIsolation(isolation);
transConn=dc;
}
else if(!(transConn instanceof ORMDatasourceConnection)){
/*if(transConn.getDatasource().equals(session.getEngine().getDataSource())){
ORMDatasourceConnection dc=new ORMDatasourceConnection(pc,session);