morph::table::VectorSource Class Reference

A DataSource over rows held in memory, for tests, servers and sources that cannot share their own storage. More...

#include <data_source.hpp>

Inheritance diagram for morph::table::VectorSource:

Public Member Functions
	VectorSource (std::vector< ColumnInfo > columns)
	Constructs an empty source with columns.
std::span< ColumnInfo const >	columns () const override
	The table's columns.
std::shared_ptr< RowSnapshot const >	snapshot () const override
	The current rows; a pointer copy.
std::shared_ptr< TableSnapshot const > const &	tableSnapshot () const noexcept
	The current rows, typed.
void	subscribe (ChangeListener &listener) override
	Registers listener.
void	unsubscribe (ChangeListener &listener) override
	Removes listener; safe from inside a notification.
void	setRows (std::vector< RowId > ids, std::vector< std::vector< Cell > > rows, std::optional< std::vector< ColumnInfo > > columns=std::nullopt)
	Replaces every row (and optionally the columns), then notifies Reset.
void	updateRow (std::size_t row, std::vector< Cell > cells)
	Replaces one row's cells, then notifies Updated.
bool	patchRow (RowId const &key, std::vector< Cell > cells) override
	Replaces the cells of the row keyed id, then notifies Updated.
void	insertRow (std::size_t row, RowId key, std::vector< Cell > cells)
	Inserts a row before row, then notifies Inserted.
void	removeRow (std::size_t row)
	Removes row row, then notifies Removed.
std::optional< std::size_t >	indexOf (RowId const &key) const
	The index of the row keyed id.

Detailed Description

A DataSource over rows held in memory, for tests, servers and sources that cannot share their own storage.

Definition at line 811 of file data_source.hpp.

Constructor & Destructor Documentation

VectorSource()

morph::table::VectorSource::VectorSource ( std::vector< ColumnInfo > columns )

inlineexplicit

Constructs an empty source with columns.

Parameters

columns

The table's columns.

Definition at line 815 of file data_source.hpp.

Member Function Documentation

columns()

std::span< ColumnInfo const > morph::table::VectorSource::columns ( ) const

inlinenodiscardoverridevirtual

The table's columns.

Returns

The columns.

Implements morph::table::DataSource.

Definition at line 820 of file data_source.hpp.

snapshot()

std::shared_ptr< RowSnapshot const > morph::table::VectorSource::snapshot ( ) const

inlinenodiscardoverridevirtual

The current rows; a pointer copy.

Returns

The snapshot.

Implements morph::table::DataSource.

Definition at line 824 of file data_source.hpp.

tableSnapshot()

std::shared_ptr< TableSnapshot const > const & morph::table::VectorSource::tableSnapshot ( ) const

inlinenodiscardnoexcept

The current rows, typed.

Returns

The snapshot.

Definition at line 828 of file data_source.hpp.

subscribe()

void morph::table::VectorSource::subscribe ( ChangeListener & listener )

inlineoverridevirtual

Registers listener.

Parameters

listener

The listener.

Implements morph::table::DataSource.

Definition at line 832 of file data_source.hpp.

unsubscribe()

void morph::table::VectorSource::unsubscribe ( ChangeListener & listener )

inlineoverridevirtual

Removes listener; safe from inside a notification.

Parameters

listener

The listener.

Implements morph::table::DataSource.

Definition at line 836 of file data_source.hpp.

setRows()

void morph::table::VectorSource::setRows ( std::vector< RowId > ids, std::vector< std::vector< Cell > > rows, std::optional< std::vector< ColumnInfo > > columns = std::nullopt )

inline

Replaces every row (and optionally the columns), then notifies Reset.

Parameters

ids	The rows' keys.
rows	The rows' cells.
columns	New columns, or nothing to keep the current ones.

Definition at line 842 of file data_source.hpp.

updateRow()

void morph::table::VectorSource::updateRow ( std::size_t row, std::vector< Cell > cells )

inline

Replaces one row's cells, then notifies Updated.

Parameters

row	Row index.
cells	The new cells.

Definition at line 855 of file data_source.hpp.

patchRow()

bool morph::table::VectorSource::patchRow ( RowId const & key, std::vector< Cell > cells )

inlineoverridevirtual

Replaces the cells of the row keyed id, then notifies Updated.

Parameters

key	The row's key.
cells	The new cells.

Returns

false when no row has that key.

Implements morph::table::RowPatcher.

Definition at line 864 of file data_source.hpp.

insertRow()

void morph::table::VectorSource::insertRow ( std::size_t row, RowId key, std::vector< Cell > cells )

inline

Inserts a row before row, then notifies Inserted.

Parameters

row	Insert position.
key	The new row's key.
cells	The new row's cells.

Definition at line 877 of file data_source.hpp.

removeRow()

void morph::table::VectorSource::removeRow ( std::size_t row )

inline

Removes row row, then notifies Removed.

Parameters

row	Row index.

Definition at line 885 of file data_source.hpp.

indexOf()

std::optional< std::size_t > morph::table::VectorSource::indexOf ( RowId const & key ) const

inlinenodiscard

The index of the row keyed id.

Parameters

key

The key.

Returns

Its row index, or nothing.

Definition at line 894 of file data_source.hpp.

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The documentation for this class was generated from the following file:

• morph/table/data_source.hpp