Hi, thank you for your awnser.
I am using DAO pattern but, I have to open the transaction in some place. This place is the class which calls the DAO classes, inside the try - catch block. (The DAO layer has several facades).
JSF -> Bussiness layer -> DTO layer -> DAO layer.
The calls are made between DTO and DAO layer. Between facades.
If there is other way to do it (the try - catch block), could you put a piece of code?.
Thank you again.