Developing Web dynpro FPM application

Question

Hi All
I need to implement "Exit" functionality in my component similar to the standard ESS components which uses IFPM interface.
1) I created a view
2) Added a button
3) On click of button i called a method say "<b>cancel</b>" of Component Cntroller
4) Added xssutils and xssfpm in used DCs
5) I have declared a variable <b>fpm</b> of type <b>IFPM</b>
6) The "cancel: method contains
fpm.navigate(wdThis.wdGetFcNavigationInterface().getNavigationTargetExitApplication());
When i deployed this application, it gives me
NullPointerException
at com.sap.pcuigp.xssutils.navi.FcNavigation.getNavigationTargetExitApplication
Please let me know where do i have to initialize the variable fpm ?
Does it get initialize on its own by the framework ?
Please help in solving the problem
Thanks in advance
Regards
Sonal Mangla

Answer 1

Hi ,
have you declared the variable fpm inside
//@begin others
//@end
at the end of controller class..
<a href="http://help.sap.com/saphelp_erp2005vp/helpdata/en/43/42b70c8eba2a21e10000000a422035/frameset.htm">FPM variable declaration</a>
Are you running this application as an FPM app ?
<a href="http://help.sap.com/saphelp_erp2005vp/helpdata/en/43/3b6dd0af501bcce10000000a1553f7/frameset.htm">Making a WD application a self service app</a>
And go to used components and FcNavigation in the list ,
make the lifecycle manual..
and define component usage..
<a href="http://help.sap.com/saphelp_erp2005vp/helpdata/en/43/42b7eb8eba2a21e10000000a422035/frameset.htm">Sample for component usage definition</a>
Regards
Bharathwaj
Message was edited by:
        Bharathwaj