/** {@inheritDoc} */
 public Map<BusinessTheme, AFTime> formatThemeBindings(Project proj) {
   Map<BusinessTheme, Collection<BacklogThemeBinding>> tmp =
       new HashMap<BusinessTheme, Collection<BacklogThemeBinding>>();
   if (proj.getIterations().size() > 0) {
     List<BacklogThemeBinding> bindings = projectDAO.getProjectThemeData(proj);
     // iteration themes
     for (BacklogThemeBinding bind : bindings) {
       if (tmp.get(bind.getBusinessTheme()) == null) {
         tmp.put(bind.getBusinessTheme(), new ArrayList<BacklogThemeBinding>());
       }
       tmp.get(bind.getBusinessTheme()).add(bind);
     }
   }
   // project themes
   if (proj.getBusinessThemeBindings() != null) {
     for (BacklogThemeBinding bind : proj.getBusinessThemeBindings()) {
       if (tmp.get(bind.getBusinessTheme()) == null) {
         tmp.put(bind.getBusinessTheme(), new ArrayList<BacklogThemeBinding>());
       }
       tmp.get(bind.getBusinessTheme()).add(bind);
     }
   }
   Map<BusinessTheme, AFTime> ret = new HashMap<BusinessTheme, AFTime>();
   // format
   for (BusinessTheme theme : tmp.keySet()) {
     AFTime sum = new AFTime(0);
     for (BacklogThemeBinding bin : tmp.get(theme)) {
       sum.add(bin.getBoundEffort());
     }
     ret.put(theme, sum);
   }
   return ret;
 }