@Override public OperationResult<SchemaChangeResult> addColumnFamily(final ColumnFamilyDefinition def) throws ConnectionException { return executeSchemaChangeOperation( new AbstractKeyspaceOperationImpl<SchemaChangeResult>( tracerFactory.newTracer(CassandraOperationType.ADD_COLUMN_FAMILY), def.getKeyspace()) { @Override public SchemaChangeResult internalExecute(Client client, ConnectionContext context) throws Exception { return new SchemaChangeResponseImpl() .setSchemaId( client.system_add_column_family( ((ThriftColumnFamilyDefinitionImpl) def) .getThriftColumnFamilyDefinition())); } }); }