public void setFilterIndex(SOCIndex socIndex) {
    mSOCIndex = socIndex;

    if (mFilter != null) {
      mFilter.setSocIndex(socIndex);
    }
  }
 @Override
 public Filter getFilter() {
   if (mFilter == null) {
     mFilter = new ScheduleFilter();
     mFilter.setSocIndex(mSOCIndex);
   }
   return mFilter;
 }