class	method/attribute	parameters	keys for params	returns	description
AggregationResult	get(type)	type Type		Object	Returns the aggregation result
Container	create_index(params)	params Hash	column_name String index_type IndexType name String Default value: index_type=DEFAULT, name=nil		Creates a specified type of index on the specified Column
	drop_index(params)	params Hash	column_name String index_type IndexType name String Default value: index_type=DEFAULT, name=nil		Removes the specified type of index among indexes on the specified Column
	flush()				Writes the results of earlier updates to a non-volatile storage medium, such as SSD, so as to prevent the data loss even if all cluster nodes stop suddenly
	put(row)	row Array(Object)		true, false	Newly creates or update a Row
	query(query)	query String		Query	Creates a query to execute the specified TQL statement
	abort()				Rolls back the result of the current transaction and starts a new transaction in the manual commit mode
	commit()				Commits the result of the current transaction and start a new transaction in the manual commit mode
	set_auto_commit(enabled)	enabled true, false			Change the setting of the commit mode
	get(key)	key Object		Array(Object)	Returns the content of a Row corresponding to Row key
	remove(key)	key Object		true, false	Deletes a Row corresponding to Row key
	type				Integer attribute (Read only)
QueryAnalysisEntry	get()			Array	Returns one of information entries composing a query plan and the results of analyzing a query operation
GSException	get_error_stack_size()			Integer	Returns the stack size of last error information related to specified resource
	get_error_code(stack_index)	stack_index Integer		Integer	Returns the error code of last error related to specified resource
	get_message(stack_index)	stack_index Integer		String	Returns the message of last error related to specified resource
	what()			String	Returns the message include error code and error message
	get_location(stack_index)	stack_index Integer		String	Returns the error location of the internal module to the message of last error related to specified resource
Query	fetch(for_update=false)	for_update true, false		RowSet	Executes a specified query with the specified option and returns a set of Rows as an execution result
	get_row_set()			RowSet	Returns RowSet as the latest result
	set_fetch_options(params)	params Hash	limit int partial boolean Default value: limit=INTEGER_MAX, partial=false		Sets an fetch option for a result acquisition
RowSet	remove()				Deletes the Row at the current cursor position
	next()			AggregationResult or Array(Object)	Moves the cursor to the next element in a object set and returns the object at the moved position
	has_next()			true, false	Returns whether a Row set has at least one Row ahead of the current cursor position
	update(row)	row Array(Object)			Updates the values except a Row key of the Row at the cursor position, using the specified Row object
	type				Integer attribute (Read only)
	size				Integer attribute (Read only)
Store	put_container(info, modifiable = false)	info ContainerInfo modifiable true, false		Container	Newly creates or update a Container with the specified Container properties
	get_container(name)	name String		Container	Get a Container instance whose rows can be processed using a Row object
	drop_container(name)	name String			Delete a Container with the specified name
	get_container_info(name)	name String		ContainerInfo	Get information related to a Container with the specified name
StoreFactory	self.get_instance()			StoreFactory	Returns a default StoreFactory instance
	get_store(params)	params Hash	host String port Integer cluster_name String database String username String password String notification_member String norification_provider String	Store	Returns a Store with the specified properties Note: If this host is multicast address, host/port means notificationAddress/notificationPort for C Client.
	get_version()			String	Returns the current version of client
ContainerInfo	ContainerInfo(params)	params Hash	name String column_info_aray Array(Array(String, Type)) type ContainerType row_key boolean expiration ExpirationInfo Default value: type=COLLECTION, row_key=true, expiration=nil	ContainerInfo	Constructor
	name				String attribute
	column_info_list				Array(Array(String, Type)) attribute
	type				Integer attribute
	row_key				true, false attribute
	expiration				ExpirationInfo attribute
ExpirationInfo	ExpirationInfo(time, unit, division_count)	time Integer unit TimeUnit division_count Integer		ExpirationInfo	Constructor
	time				Integer attribute
	unit				Integer attribute
	division_count				Integer attribute
TimestampUtils	self.get_time_millis(timestamp)	timestamp Float		Integer	Caluculate int-type timestamp in millisecond from nanosecond get from Time object