class PruningGraph {

    public void add(ColumnCombinationBitset columnCombination) {
        int initialKeyLength = 1;
        for (int i = 0; i < columnCombination.getNSubsetColumnCombinations(initialKeyLength).size(); i++) {
            this.addToKey(columnCombination.getNSubsetColumnCombinations(initialKeyLength).get(i), columnCombination, initialKeyLength);
        }
    }

    public  PruningGraph(int numberOfColumns, int overflowTreshold, boolean positiveFeature);

}