Order of execution DML sentences

Hi,
I have put this text on a post in the JDeveloper forum, but maybe it is convenient to put it here, because I don't know if JHeadStart classes, can help in some way to solve the problem.
We are interested in the same subject. We came from a Oracle Forms environment, where the default and logical behavior is delete/update/insert.
In the ADF Model (using JHeadStart, at least), it seems that the execution order is a bit random (it is not the order I choose in the screen, for example), or maybe we have not understood, which is the order it applies.
So, the questions are:
1) There is an established order? Which is it?
2) As klee have been asking, there is any way to change the default order?
As ADF BC is promoted as an easy way to do Java applications for Form Developers, it seems strange that the execution order in forms hasn't been respected.
Carles Biosca
BBR Ingeniería de Servicios

Carles,
The DML sentences order is determined by the sequence in which ADF BC receives the changes, which is the following in case of multi-row changes:
1. updates
2. inserts
3. deletes
We have to stick to this sequence for the following reasons:
- The multi-row update is perforemed as part of the standard JSF lifecycle phase "Model Update"
- multi-row insert is JHeadstart-specific and performed after the Model Update phase
- multi-row delete is JHeadstart specific and performed after multi-row insert. The reason we do the deletes last is to handle the case where the transaction fails: to be able to redisplay the rows that the user attempted to delete, we must do a middle-tier "rollback to savepoint", and this save point is set after the multi-row insert, otherwise we cannot redisplay the new rows entered by the user.
Steven Davelaar,
JHeadstart Team.

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Order of execution DML sentences

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