How can I set a value in a field before create when a New button is clicked

Hi,
I am using
JDeveloper 10.1.3.1.0.3984 and
JHeadstart 10.1.3.1 release 10.1.3.1.26
I have one group and there is a detail group under that group.
From main group to detail group there are 3 field relating those groups.
field1
field2
fieldSEQ (auto-generated by database trigger)
These 3 fields are PK.
In the detail group, there is a New button. So, when the New button is clicked, it tries to create the record with those 3 fields value as those are coming from main group. As a result it's giving the duplicate error as that record already exists in the table.
But I don't want to create the record with that SEQ as that will be created in the trigger.
How can I set the SEQ temporarily any no. (-1) before create when the New button is clicked?
Can anybody help?
Thanks
Syed Jabbar
University of Windsor
Windsor, ON, Canada

Hello Syad,
What I would suggest is setting the sequence number at the creation of the entity object (so in the create() method) by using the database sequence. This way it will always be unique.
So something like:
protected void create(AttributeList AttributeList) {
super.create(AttributeList);
SequenceImpl sequence =
new SequenceImpl("KCP_SEQ", getDBTransaction());
setFieldSeq( sequence.getSequenceNumber());
If this still does not solve it: please go to the ADF Forum since this problem is an ADF problem, not a JHeadstart problem.
Regards,
Evert-Jan de Bruin
JHeadstart Team.

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