Problem in HtmlPanelGroup when using in the form of array

Question

hi
i am working in a jsf project using hibernate and mysql.My problem is in using HtmlPanelGroup.
here HtmlPanelGroup is used as array like
HtmlPanelGroup[] sample;
and faces-config's scope is request.when i process the application,the value of HtmlPanelGroup array is null throwing NullPointerException.but when i change the faces-config scope to session,i got the expected result.Eventhough i got the results in session scope,i need the results using only request scope which is my determined constraint.
In the request scope, the getter method of sample is called,but when i do some data storage,the setter method of sample is not called.i think that is why the data of HtmlPanelGroup have not been got and this threw NullPointerException.is there any solution to call the setter method of HtmlPanelGroup array in request scope and to avoid the NullPointerException?
Thanks
rgds
oasisdeserts

Answer 1

Hi Baluc,
I have been invoking this line throurgh commandButton's action attribute as follow.
<td><h:panelGroup binding="#{partnerDetail.partnerInfo[0]}" />
<h:commandButton type="submit" action="#{partnerDetail.addPartner}" value="Save" />
The Backend method is
Public class Partner{
public String addPartner(){
               try{
PartnerAdditionalPerson     personAdditionalPerson      = new PartnerAdditionalPerson();
String partnerContactPersonName                    = ((HtmlInputText) this.partnerInfo.getChildren().get(1)).getValue().toString();
               String partnerContactPersonEmail                    = ((HtmlInputText) this.partnerInfo[i]
                                                  .getChildren().get(2)).getValue().toString();
                         personAdditionalPerson.setPartner(part);
                         personAdditionalPerson.setPartnerContactPersonName(partnerContactPersonName);
                         personAdditionalPerson.setPartnerContactPersonEmail(partnerContactPersonEmail);
                         session.save(personAdditionalPerson);
               }catch(Exception e){
return "SUCCESS";
what shall i do to save the partnerInfo htmlpanelgroup in data base using request scope?
rgds
oasisdeserts