morph::table::RowOrder Class Reference

A sort chain resolved to key columns: the comparator of a sort. More...

#include <sort.hpp>

Classes
struct	Key
	One resolved key. More...

Public Member Functions
	RowOrder ()=default
	Source order.
	RowOrder (std::vector< Key > keys)
	An order over resolved keys, most significant first.
bool	operator() (std::uint32_t left, std::uint32_t right) const
	Whether row a orders before row b. Ties break by source row, so this is a strict total order and every sort is stable.
bool	empty () const noexcept
	Whether this is source order.

Detailed Description

A sort chain resolved to key columns: the comparator of a sort.

Holds pointers to key columns it does not own; whoever builds it keeps the columns alive for as long as it is used.

Definition at line 483 of file sort.hpp.

Constructor & Destructor Documentation

RowOrder()

morph::table::RowOrder::RowOrder ( std::vector< Key > keys )

inlineexplicit

An order over resolved keys, most significant first.

Parameters

keys

The keys.

Definition at line 498 of file sort.hpp.

Member Function Documentation

operator()()

bool morph::table::RowOrder::operator() ( std::uint32_t left, std::uint32_t right ) const

inlinenodiscard

Whether row a orders before row b. Ties break by source row, so this is a strict total order and every sort is stable.

Parameters

left	One row.
right	Another row.

Returns

true when left comes first.

Definition at line 505 of file sort.hpp.

empty()

bool morph::table::RowOrder::empty ( ) const

inlinenodiscardnoexcept

Whether this is source order.

Returns

true when no key is set.

Definition at line 516 of file sort.hpp.

---

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

• morph/table/sort.hpp