I have been exploring Cassandra, thrift and hector recently. Very interesting technology. I am still looking for complete examples of code for thrift and hector that exercise and explain the API paramaters, I am also looking for direct API documentation. I found some at the locations below and on the hector site. If there is something more complete please let me know.
http://schabby.de/cassandra-getting-started/ http://wiki.apache.org/cassandra/ThriftExamples http://wiki.apache.org/cassandra/ClientOptions http://prettyprint.me/2010/02/14/running-cassandra-as-an-embedded-service/