WorkflowAssignment ass = new WorkflowAssignment();
ass.setAccepted(acceptedStatus);
WfActivity activity = wfa.activity();
WfResource assignee = wfa.assignee();
WfProcess process = activity.container();
WfProcessMgr manager = process.manager();
ass.setActivityId(activity.key());
ass.setActivityName(activity.name());
ass.setAssigneeId(assignee.resource_key());
ass.setAssigneeName(assignee.resource_name());
ass.setDescription(activity.description());