How to manage transactions in pl/sql instead of java

Question

Hi,
I have created a pl/sql package with a number of procedures and functions. In one of the functions I'd like to manage the transaction, instead of the jdbc driver. The function is something like:
update <table> set <column>=<value>
update <table> set <column>=<value>
update <table> set <column>=<value> where status=2
updatecount = sql%rowcount
if (updatecount = 0) then
rollback;
return 0;
end
commit;
Now if the last update results in a sql%rowcount being 0 than I want to rollback the entire transaction otherwise a commit is issued.
When I execute this function through a java class which connect with a jdbc driver, it turns out that even though the last update has an updatecount of 0 the rollback is not performed. It looks like the jdbc driver takes over the transaction management. I've tried setting connection.setAutoCommit(false), but get same result. I've also checked the transaction isolation level, which is read committed.
What am I doing wrong and how can I defer the transaction management to the function in question.
Chaime

Answer 1

If you are using a connection pool, how are you guaranteeing that you are using the same connection throughout the same application? Look at the following:
1) You grab a connection from the pool
2) You call procedure A
3) You call procedure B and issue rollback in procedure
4) You call procedure C
5) You close your connection
Are you saying you made changes in procedure A and when you issued a hard rollback in procedure B, the changes in A were not rolled back?
I'm guessing the problem is that you are not issuing your statements using the same connection.