Sample Application - Cassandra: The Definitive Guide - page 75

String superCFName = "PointOfInterest";
ColumnPath cp = new ColumnPath();
cp.column_family = superCFName;
cp.setSuper_column(CAMBRIA_NAME.getBytes());
cp.setSuper_columnIsSet(true);
innerMap.put(superCFName, columnsToAdd);
outerMap.put(keyName.getBytes(), innerMap);
client.batch_mutate(outerMap, CL);
LOG.debug("Done inserting Spring Training.");
}
private void insertPOIPhoenixZoo() throws Exception {
Map<byte[], Map<String, List<Mutation>>> outerMap =
new HashMap<byte[], Map<String, List<Mutation>>>();
List<Mutation> columnsToAdd = new ArrayList<Mutation>();
long ts = System.currentTimeMillis();
String keyName = "Phoenix Zoo";
Column descCol = new Column("desc".getBytes(UTF8),
"They have animals here.".getBytes("UTF-8"), new Clock(ts));
Column phoneCol = new Column("phone".getBytes(UTF8),
"480-555-9999".getBytes(UTF8), new Clock(ts));
List<Column> cols = new ArrayList<Column>();
cols.add(descCol);
cols.add(phoneCol);
Map<String, List<Mutation>> innerMap =
new HashMap<String, List<Mutation>>();
String cambriaName = "Cambria Suites Hayden";
Mutation columns = new Mutation();
ColumnOrSuperColumn descCosc = new ColumnOrSuperColumn();
SuperColumn sc = new SuperColumn();
sc.name = cambriaName.getBytes();
sc.columns = cols;
descCosc.super_column = sc;
columns.setColumn_or_supercolumn(descCosc);