Batch insertion in cassandra using hector api 0.7

INSERTING MULTIPLE COLUMNS WITH MUTATOR
The Mutator class also allows the insertion of multiple columns at one time (even for multiple keys). The following example inserts three columns: first, last and middle under the same key:
mutator.addInsertion("jsmith", "Standard1",
HFactory.createStringColumn("first", "John"))
.addInsertion("jsmith", "Standard1", HFactory.createStringColumn("last", "Smith"))
.addInsertion("jsmith", "Standard1", HFactory.createStringColumn("middle", "Q"));
mutator.execute();