Fix dataObject class declaration.
Fix dataObject class declaration.

Change-Id: I7324c918075c5d2896da111e29362d3248b1c814

ramineni/my_congress,openstack/congress,ramineni/my_congress,ekcs/congress,openstack/congress,ramineni/my_congress,ekcs/congress,ekcs/congress,ekcs/congress,ramineni/my_congress