Hi all,
I have this question regarding rolling back and I thought it is handled by
Transaction Manager of the EJB 3.0 but it doesnot seem so.
The problem is I have method in a Stateless session bean that trying to remove
some rows in 1 table first and and then insert some rows in the other table. I
want to make sure if the insertion failed in the second step, all of those
removals would be rolled back. I use the EntityManager to do the delete and
insert. Here are the pseudocode of my method
void updateDB (){
|
| removeRows();
| addRows();
| }
| void removeRows(){
| //use EntityManager to remove
| }
|
| void addRows(){
| //use EntityManager to insert some rows
| }
|
Could anyone tell me how to make sure if the call to addRows failed, such as
insert a duplicate row, would cause the removeRows rolledback?
Thank you very much in advance,
LNgo
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