cassandra.scala

import cassandra._

val storage = Storage()
// => storage: cassandra.Storage = cassandra.Storage@cabe02e

storage("key")          // => ""
storage("key") = "aho"  // Unit
storage("key")          // => "aho"

storage("key:field")             // => ""
storage("key:field") = "aho2"    // Unit
storage("key:field")             // => "aho2"
storage("key", "field")          // => "aho2"
storage("key", "field") = "aho3" // Unit
storage("key", "field")          // => "aho3"
storage("key:field")             // => "aho3"

console.sh

% cassandra-cli --host localhost --port 9160
cassandra> get Keyspace1.Standard2['key']['field']
=> (column=field, value=aho3, timestamp=1273480994951)