My Cassandra ColumnFamily uses the Murmur3Partitioner, and has a composite partition key. With this partitioner I was trying to create a Token, however it seems this token factory only allows Long values. Is it possible to generate these hashes for something like "token(partition_column1, partition_column2)"?
It's supposed to work. In fact, if your partition key is composite, you should be unable to create a token for only a single column. Are you sure that you've defined the composite key properly?
cqlsh:testks> create table t1(k1 int, k2 text, v text, primary key((k1, k2)));
cqlsh:testks> insert into t1(k1, k2, v) values (1, 'key', 'value');
cqlsh:testks> select * from t1;
k1 | k2 | v
----+-----+-------
1 | key | value
(1 rows)
cqlsh:testks> select token(k1) from t1;
Bad Request: Invalid number of arguments in call to function token: 2 required but 1 provided
cqlsh:testks> select token(k2) from t1;
Bad Request: Invalid number of arguments in call to function token: 2 required but 1 provided
cqlsh:testks> select token(k1, k2) from t1;
token(k1, k2)
---------------------
8064425790465501062
(1 rows)