Implement Transaction on EJB

Question

Hi! I have a situation - i have more than 2 separate method that will insert and update to different tables in our database. The problem is, all the tables should be successfully commit or rollback. Is it possible to commit all the transaction in different method in 1 method call?How?Attached are sample of the code;
public String CreateInvoice (String today,String mrn,String visitid,String debtor,String invamount,String receiptno,String id, String companycode) //throws SQLException
String InvNo=null;
int IntInvNo;
PreparedStatement pstmtInsert=null;
try
InvNo = assignInvNo();
IntInvNo = Integer.parseInt(InvNo);
conn = establishConnection();
st = conn.createStatement();
conn.setAutoCommit(false);
String sqlInsert="INSERT INTO PA03INVOICE (PA03INVNO,PA03INVDATE,PA03MRN,PA03VISITID,PA03DEBTORCODE,PA03INVAMOUNT,PA03RECEIPTNODEPOSIT,PA03STATUS,PA03ID,PA03STATUSINVOICE,PA03COMPANYCODE,PA03IDPOST,PA03IDCONFIRM,PA03DATEPOST) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
pstmtInsert = conn.prepareStatement(sqlInsert);
pstmtInsert.setString(1, InvNo);
pstmtInsert.setString(2, today);
pstmtInsert.setString(3, mrn);
pstmtInsert.setString(4, visitid);
pstmtInsert.setString(5, debtor);
pstmtInsert.setString(6, invamount);
pstmtInsert.setString(7, receiptno);
pstmtInsert.setString(8, "E");
pstmtInsert.setString(9, id);
pstmtInsert.setString(10,"P");
pstmtInsert.setString(11, companycode);
pstmtInsert.setString(12, id);
pstmtInsert.setString(13, id);
pstmtInsert.setString(14, today);
int insertnum =pstmtInsert.executeUpdate();
// pstmtInsert.close();
conn.commit();
catch (SQLException e) {
if (e != null) {
System.out.println(e.getSQLState());
System.out.println(e.getMessage());
System.out.println(e.getErrorCode());
System.out.println("ini error dari--CreateInvoice (String today,String mrn,String visitid,String debtor,String invamount,String receiptno,String id)");
e.printStackTrace();
finally
try{
// rs.close();
st.close();
pstmtInsert.close();
conn.close();
catch(SQLException e2)
System.out.println(e2);
e2.printStackTrace();
return "Insert Done By Ejb - CreateInvoice";
public String updateItemBill (String visitid) //throws SQLException
String InvNo=null;
int IntInvNo;
PreparedStatement pstmtupdate=null;
try
InvNo = assignInvNo();
IntInvNo = Integer.parseInt(InvNo);
conn = establishConnection();
st = conn.createStatement();
conn.setAutoCommit(false);
String sqlUpdate = "UPDATE PA02ITEMBILL SET PA02INVNO=? WHERE PA02VISITID=?";
pstmtupdate = conn.prepareStatement(sqlUpdate);
pstmtupdate.setInt(1, IntInvNo);
int updatenum = pstmtupdate.executeUpdate();
conn.commit();
catch (SQLException e) {
if (e != null) {
System.out.println(e.getSQLState());
System.out.println(e.getMessage());
System.out.println(e.getErrorCode());
System.out.println("error from---updateItemBill (String visitid)");
e.printStackTrace();
finally
try{
pstmtupdate.close();
st.close();
conn.close();
catch(SQLException e2)
System.out.println(e2);
e2.printStackTrace();
return "Insert Done By Ejb";
}

Answer 1

Let me put your question in other words:
"I am facing the problem that a tire of my car sometimes gets flat. In which conditions is it possible? What if I use another road? Does it take longer to reach my destination if I take another road? Is there any chance that my tire gets flat when I turn left when I should turn right?"
Of course I don't tell you which car I drive, which tires I use and which roads I intend to use (I even let the destination unmentioned). Would you be able to answer my questions? Do you have any clue what I am talking about? No? Well, now you know how we feel about your question.
If you explain your problem to us pretend you are explaining it to someone who
- doesn't know your data structure
- doesn't know your source code
- doesn't know how your form is implemented
- doesn't know your forms / database versions
- doesn't know when your problem occurs
- doesn't know anything about your forms application at all
as this would be the case. Please take the time and explain your problem properly to us as by now the only correct answer would be: 42.
cheers