/**
* Create a bloom filter that contains the subcolumns and the columns that make up this Column
* Family.
*
* @param columns columns of the ColumnFamily
* @return BloomFilter with the summarized information.
*/
private static BloomFilter createColumnBloomFilter(Collection<IColumn> columns) {
int columnCount = 0;
for (IColumn column : columns) {
columnCount += column.getObjectCount();
}
BloomFilter bf = BloomFilter.getFilter(columnCount, 4);
for (IColumn column : columns) {
bf.add(column.name());
/* If this is SuperColumn type Column Family we need to get the subColumns too. */
if (column instanceof SuperColumn) {
Collection<IColumn> subColumns = column.getSubColumns();
for (IColumn subColumn : subColumns) {
bf.add(subColumn.name());
}
}
}
return bf;
}
