Edit entity object and use the Create() method for generating ID's

Question

Hello,
I have and InserPage.jsp and defined the datasoucre correctly.
<jbo:InputText datasource="ds" dataitem="Clientid" /> gives me
the unique ClientID from the FIRST client-record in my table ,
although this page is for inserting a NEW Client, with a new
ClientID.
So, on the Clients Entity i made a create() method and put the
following code in it:
public Number getClientid() {
return (Number)getAttributeInternal(CLIENTID);
public void create(AttributeList attributeList) {
SequenceImpl seq = new SequenceImpl
("Clientid",getDBTransaction());
Integer i=(Integer)seq.getData();
setClientid(new Number(i.intValue()));
super.create(attributeList);
the getData() Returns a sequence value, but what sequence value?
Do i have to create a sequence on the ClientID column in my
Oracle Table in the DB too?
The problem is, the first ClientID # is 819 and the current last
one seems to be 2899, so how do i achieve that when opening the
insert.jsp the new ClientID shows up (ie. 2900)?
How can i achieve this?
thx

Answer 1

OK, managed to track down the HowTo on triggers? I created the
trigger.
create sequence client_seq
start with 8900
increment by 1
nomaxvalue
nocycle;
I changed the create() method for the entity object to:
public void create(AttributeList attributeList) {
SequenceImpl seq = new SequenceImpl
("Clientid",getDBTransaction());
SequenceImpl s = new SequenceImpl("client_seq",
getDBTransaction());
Integer next = (Integer)s.getData();
setClientid(new Number(next.intValue()));
and running the tester for the module works fine. ;-)
But...
The Insert.jsp page has to insert/show this sequenced value!
After i defined the datasource and let us say:
<jbo:InputText datasource="ds" dataitem="Clientid" />
...the number 819 shows up, which is the FIRST record, so i do
not get the new ClientID with the correct number.
Any help is always nice. ;-)