ADF Table with CheckBox - Select/deselect issue

Question

I have seen couple of threads and blogs for ADF table with check box . but none of them exactly matching with my requirement . My Database table does not have any field for check box .
Here is my DB Table
tableA_
A_Id
A_Name
tableB*
B_Id
Requirements :*
1. Display the above tables data with Checkbox . ( if A_Id = B_Id then the checkbox will be checked , else unchecked ) .
2. Select / deselect the check box and save the data . Saving the data , will update only tableB . i,e when a new check box is selected then A_Id value will be inserted to tableB . Similarly , deselecting a checked in data will remove the entry from tableB.
Development :
1. Created a VO where tableB has marked as updateable .
2. Created a transient Boolean variable for checkBox . and modified the getter method of checkbox for returning true/false based on the below condition in the ViewRowImpl Class .
if ( A_Id = B_Id )
return true;
else false ;
3. I have not modified the setter method .
Using the above concept i can view the data with selected checkbox . but the problem is to save the data . because , when I select a checkbox the above coding in the getter method will return false .
Therefore , though i am selecting the checkbox but value of the checkbox has been set as false .
While saving the Data , I am iterating through the VOIterator and observed that a newly selected checkbox value is false . and realized its because of the getter method condition .
Can you please suggest how can I overcome this issue or shall I need to take any other approach ?
Jdev version 11.1.1.5
Regards,
Amitava
Edited by: Amitava on Mar 17, 2012 3:48 PM

Answer 1

You need to go through the ADF page life cycle concepts. In simple words the boolean value in the model is not set while in valueChangeListener. Try adding valueChangeEvent.getComponent().processUpdates(FacesContext.getCurrentInstance()); on top in your listener method and see the effect.
Reference:
http://docs.oracle.com/cd/E15051_01/web.1111/b31974/adf_lifecycle.htm