Querying whole column family in Cassandra

Hector4.java

public static void main(String... args) throws Exception {
   Cluster cluster = HFactory.getOrCreateCluster("test-cluster", "localhost:9160");
   Keyspace keyspace = HFactory.createKeyspace("MyKeyspace", cluster);

   RangeSlicesQuery<String, String, String> q = HFactory
      .createRangeSlicesQuery(keyspace, StringSerializer.get(),
         StringSerializer.get(), StringSerializer.get());
   q.setColumnFamily("ColumnFamilyName");
   q.setRange(null, null, false, 2);

   QueryResult<OrderedRows<String, String, String>> execute = q.execute();
   OrderedRows<String, String, String> get = execute.get();
   Iterator<Row<String, String, String>> iterator = get.iterator();
   while (iterator.hasNext()) {
      Row<String, String, String> next = iterator.next();
      System.out.println("Key: " + next.getKey());
      ColumnSlice<String, String> columnSlice = next.getColumnSlice();
      for (HColumn<String, String> c : columnSlice.getColumns()) {
         System.out.println(c.getName() + " = " + c.getValue());
      }
   }
}