checks if the username is stored in auth_ks . users_cf . concode_field_sep Logger logger concode_elem_sep String AUTH_KS concode_elem_sep SelectStatement selectUserStatement concode_elem_sep String USERS_CF concode_elem_sep String USERS_CF_SCHEMA concode_elem_sep String DEFAULT_SUPERUSER_NAME concode_elem_sep long SUPERUSER_SETUP_DELAY concode_field_sep ConsistencyLevel consistencyForUser concode_elem_sep void onCreateKeyspace concode_elem_sep void onUpdateColumnFamily concode_elem_sep boolean isSuperuser concode_elem_sep UntypedResultSet selectUser concode_elem_sep void onDropKeyspace concode_elem_sep void onDropColumnFamily concode_elem_sep void onUpdateKeyspace concode_elem_sep void setupDefaultSuperuser concode_elem_sep void setupAuthKeyspace concode_elem_sep void insertUser concode_elem_sep void setupUsersTable concode_elem_sep void deleteUser concode_elem_sep void setup concode_elem_sep String escape concode_elem_sep void onCreateColumnFamily
boolean function ( String arg0 ) { return ! selectUser ( arg0 ) . isEmpty ( ) ; }