public void delete(String columnFamily, String key) {
Mutator<String> mutator = HFactory.createMutator(this._keyspace, StringSerializer.get());
mutator.delete(key, columnFamily, null, StringSerializer.get());
// mutator.addDeletion(key, columnFamily);
// mutator.execute();
}
public void removeColumn(String keyspace, String cf, String key, String column) {
Keyspace ks = getKeyspaceForName(keyspace);
Mutator<String> mutator = HFactory.createMutator(ks, s);
mutator.delete(key, cf, column, s);
}