hybridse::vm::Window

#include <mem_catalog.h>

Summary

Public Types

	Name
WindowFrameType { kFrameRows, kFrameRowsRange, kFrameRowsMergeRowsRange}	enum

Public functions
Window()
~Window()
GetIterator() override	std::unique_ptr< RowIterator > Return the const iterator.
GetRawIterator()	RowIterator * Return the const iterator raw pointer.
BufferData(uint64_t key, const Row & row) =0	bool
PopBackData()	void
PopFrontData() =0	void
GetCount()	const uint64_t Returns the number of elements in this list.
At(uint64_t pos)	Row Return a the value of element by its position in the list.
GetHandlerTypeName() override	const std::string Return the name of handler and return "TableHandler" by default.
instance_not_in_window() const	const bool
set_instance_not_in_window(const bool flag)	void
exclude_current_time() const	const bool
set_exclude_current_time(const bool flag)	void

Protected attributes
exclude_current_time_	bool
instance_not_in_window_	bool

Inherited members

Inherited by hybridse::vm::HistoryWindow

Inherited from hybridse::vm::MemTimeTableHandler

Inherited Public functions
MemTimeTableHandler()
MemTimeTableHandler(const Schema * schema)
MemTimeTableHandler(const std::string & table_name, const std::string & db, const Schema * schema)
GetTypes() override	const Types & Return table column Types information.
~MemTimeTableHandler() override
GetSchema()	const Schema * Return table schema.
GetName()	const std::string & Return table name.
GetIndex()	const IndexHint & Return the index information.
GetDatabase()	const std::string & Return the name of database.
GetWindowIterator(const std::string & idx_name)	std::unique_ptr< WindowIterator >
AddRow(const uint64_t key, const Row & v)	void
AddFrontRow(const uint64_t key, const Row & v)	void
PopBackRow()	void
PopFrontRow()	void
GetFrontRow()	const std::pair< uint64_t, Row > &
GetBackRow()	const std::pair< uint64_t, Row > &
Sort(const bool is_asc)	void
Reverse()	void
SetOrderType(const OrderType order_type)	void
GetOrderType() const	const OrderType

Inherited protected attributes
table_name_	const std::string
db_	const std::string
schema_	const Schema *
types_	Types
index_hint_	IndexHint
table_	MemTimeTable
order_type_	OrderType

Inherited from hybridse::vm::TableHandler

Inherited Public functions
TableHandler()
~TableHandler()
GetTypes() =0	const Types & Return table column Types information.
GetIndex() =0	const IndexHint & Return the index information.
GetWindowIterator(const std::string & idx_name) =0	std::unique_ptr< WindowIterator >
GetHanlderType() override	const HandlerType
GetPartition(const std::string & index_name)	std::shared_ptr< PartitionHandler >
GetOrderType() const	const OrderType
GetTablet(const std::string & index_name, const std::string & pk)	std::shared_ptr< Tablet >
GetTablet(const std::string & index_name, const std::vector< std::string > & pks)	std::shared_ptr< Tablet >

Inherited from hybridse::vm::DataHandler

Inherited Public functions
DataHandler()
~DataHandler()
GetSchema() =0	const Schema * Return table schema.
GetName() =0	const std::string & Return table name.
GetDatabase() =0	const std::string & Return the name of database.
GetHanlderType() =0	const HandlerType Return the type of DataHandler.
GetStatus()	base::Status Return dataset status. Default is hybridse::common::kOk.

Inherited from hybridse::codec::ListV< Row >

Inherited Public functions
ListV()
~ListV()

Public Types

enum WindowFrameType

Enumerator	Value	Description
kFrameRows
kFrameRowsRange
kFrameRowsMergeRowsRange

Description:

Public Functions

function Window

inline Window()

Description:

function ~Window

inline virtual ~Window()

Description:

function GetIterator

inline virtual std::unique_ptr< RowIterator > GetIterator() override

Description:

Return the const iterator.

Reimplements: hybridse::vm::MemTimeTableHandler::GetIterator

function GetRawIterator

inline virtual RowIterator * GetRawIterator()

Description:

Return the const iterator raw pointer.

Reimplements: hybridse::vm::MemTimeTableHandler::GetRawIterator

function BufferData

virtual bool BufferData(
    uint64_t key,
    const Row & row
) =0

Description:

Reimplemented by: hybridse::vm::HistoryWindow::BufferData, hybridse::vm::CurrentHistoryWindow::BufferData

function PopBackData

inline virtual void PopBackData()

Description:

function PopFrontData

virtual void PopFrontData() =0

Description:

Reimplemented by: hybridse::vm::HistoryWindow::PopFrontData, hybridse::vm::CurrentHistoryWindow::PopFrontData

function GetCount

inline virtual const uint64_t GetCount()

Description:

Returns the number of elements in this list.

Reimplements: hybridse::vm::MemTimeTableHandler::GetCount

It count element by traverse the list

function At

inline virtual Row At(
    uint64_t pos
)

Description:

Return a the value of element by its position in the list.

Parameters:

• pos is element position in the list

Reimplements: hybridse::vm::MemTimeTableHandler::At

function GetHandlerTypeName

inline virtual const std::string GetHandlerTypeName() override

Description:

Return the name of handler and return "TableHandler" by default.

Reimplements: hybridse::vm::MemTimeTableHandler::GetHandlerTypeName

function instance_not_in_window

inline const bool instance_not_in_window() const

Description:

function set_instance_not_in_window

inline void set_instance_not_in_window(
    const bool flag
)

Description:

function exclude_current_time

inline const bool exclude_current_time() const

Description:

function set_exclude_current_time

inline void set_exclude_current_time(
    const bool flag
)

Description:

Protected Attributes

variable exclude_current_time_

bool exclude_current_time_;

Description:

variable instance_not_in_window_

bool instance_not_in_window_;

Description: