Pls help me any one, ADF Faces EO,VO creation in mutiple table..

Question

problem here:
table1
field1 (pk)
field2 NAME
table2
field1 (pk)
field2 (fk for table1)
field3 NAME
table3
field1 (pk)
field2 (fk for table2)
field3 NAME
Here each table having separate panel tabbed, i want to show table1 of
field2 in third panel tabbed(screen). How i can create EO,VO to show
with success.
When i'm showing the table1 of field2, is not require to do a DML operations.
like this my third screen's adf table
field2(table1) field2(table3) field3(table3)
(showing for
user identify)
Urgent Requirement pls help me.
In case of any query please free to mail @ [email protected]
Thanks & Regards,
Rengaraj
Edited by: user11129216 on May 4, 2009 7:21 AM

Answer 1

Like Frank, I'm not 100% sure I'm understanding your requirement, but here are some observations.
Your three tables look like master/detail/detail, let's say it was Regions->Countries->Locations
So, you would build a RegionsView VO to show the Regions information.
You would build a CountriesView VO to show the Countries information.
You would build a LocationsView VO to show the Locations information.
Then you would create a view link between RegionsView and CountriesView to coordinate that master/detail relationship.
Then you would create a view link between CountriesView and LocationsView to coordinate that master/detail relationship.
All of the above will be created automatically for you if you have foreign keys defined in the database when you use the Create Business Components from Tables wizard. (including the underlying entity objects for your database tables, associations that reflect your foreign key relationships).
If you want LocationsView to show information from its parent, you can include the Country EO as an entity usage in the LocationsView and include the attributes from country that you want to appear in that (join) query. You can repeat to also add the Region EO as an entity usage to join all three.
Then, you would drop RegionsView from the data control palette onto tab1, CountriesView onto tab2, and LocationsView onto tab 3.