morph::table::RowsSource< Row > Class Template Reference

A DataSource over typed rows: one column per key glaze writes, its kind inferred from the value's type. More...

#include <query.hpp>

Inheritance diagram for morph::table::RowsSource< Row >:

Public Member Functions
	RowsSource (std::shared_ptr< std::vector< Row > const > rows, RowKey< Row > key, std::map< std::string, ColumnKind, std::less<> > const &kinds={}, std::map< std::string, std::string, std::less<> > const &comparators={})
	Builds the source.
std::span< ColumnInfo const >	columns () const override
	The columns.
std::shared_ptr< RowSnapshot const >	snapshot () const override
	The current rows; a pointer copy.
void	subscribe (ChangeListener &listener) override
	Registers listener.
void	unsubscribe (ChangeListener &listener) override
	Removes listener; safe from inside a notification.
void	setRows (std::shared_ptr< std::vector< Row > const > rows)
	Replaces the rows and notifies Reset.

Detailed Description

template<typename Row>
class morph::table::RowsSource< Row >

A DataSource over typed rows: one column per key glaze writes, its kind inferred from the value's type.

bool is Bool; other integers Integer (an unsigned value above INT64_MAX is an invalid cell); floating point Number; Rational Decimal; a Quantity Quantity; DateTime and Timestamp DateTime; a type glaze writes as one of its members (Ranged, Choice, Tagged) that member's kind; everything else Text (an enum by its glaze name). A std::optional member's empty state, or anything glaze writes as null, is an empty cell. A row with a glz::meta has the columns its meta names. setRows replaces the rows and notifies Reset.

Template Parameters

Row	A glaze-reflectable aggregate.

Definition at line 575 of file query.hpp.

Constructor & Destructor Documentation

RowsSource()

template<typename Row>

morph::table::RowsSource< Row >::RowsSource ( std::shared_ptr< std::vector< Row > const > rows, RowKey< Row > key, std::map< std::string, ColumnKind, std::less<> > const & kinds = {}, std::map< std::string, std::string, std::less<> > const & comparators = {} )

inline

Builds the source.

Parameters

rows	The rows.
key	The key projection.
kinds	Column kinds that replace the inferred ones, by column id (for example Date for an int64 of epoch days).
comparators	Comparator names by column id, from Services::comparators; a column named here is Custom.

Definition at line 584 of file query.hpp.

Member Function Documentation

columns()

template<typename Row>

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

inlinenodiscardoverridevirtual

The columns.

Returns

One per reflected member.

Implements morph::table::DataSource.

Definition at line 604 of file query.hpp.

snapshot()

template<typename Row>

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

inlinenodiscardoverridevirtual

The current rows; a pointer copy.

Returns

The snapshot.

Implements morph::table::DataSource.

Definition at line 608 of file query.hpp.

subscribe()

template<typename Row>

void morph::table::RowsSource< Row >::subscribe ( ChangeListener & listener )

inlineoverridevirtual

Registers listener.

Parameters

listener

The listener.

Implements morph::table::DataSource.

Definition at line 612 of file query.hpp.

unsubscribe()

template<typename Row>

void morph::table::RowsSource< Row >::unsubscribe ( ChangeListener & listener )

inlineoverridevirtual

Removes listener; safe from inside a notification.

Parameters

listener

The listener.

Implements morph::table::DataSource.

Definition at line 616 of file query.hpp.

setRows()

template<typename Row>

void morph::table::RowsSource< Row >::setRows ( std::shared_ptr< std::vector< Row > const > rows )

inline

Replaces the rows and notifies Reset.

Parameters

rows	The new rows.

Definition at line 620 of file query.hpp.

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

• morph/table/query.hpp