private void decomposePushDownFilter() {
    pushDownFilters.clear();
    for (RecordFilter filter : filters) {
      if (!fields.contains(filter.getField())) {
        pushDownFilters.add(filter);
      }
    }
    filters.removeAll(pushDownFilters);
  }
The data and business logic for the top screen.
hbase-hbtop/src/main/java/org/apache/hadoop/hbase/hbtop/screen/top/TopScreenModel.java