This represents an expression with the $not operator, which wraps a comparison expression and negates it. More...

Public Member Functions
constexpr	not_expr (const Expr &expr)
	Creates a $not expression that negates the given comparison expression. More...

std::string &	append_name (std::string &s) const
	Appends the name of the contained field to a string.

void	append_to_bson (bsoncxx::builder::core &builder, bool wrap=false, bool omit_name=false) const
	Appends this expression to a BSON core builder, as a key-value pair of the form "key: {$not: {$cmp: val}}". More...

	operator bsoncxx::document::view_or_value () const
	Converts the expression to a BSON filter for a query. More...

Detailed Description

This represents an expression with the $not operator, which wraps a comparison expression and negates it.

Constructor & Destructor Documentation

template<typename Expr >

constexpr mangrove::not_expr< Expr >::not_expr ( const Expr & expr )

inline

Creates a $not expression that negates the given comparison expression.

Parameters

expr	A comparison expression

template<typename Expr >

void mangrove::not_expr< Expr >::append_to_bson	(	bsoncxx::builder::core &	builder,
		bool	wrap = `false`,
		bool	omit_name = `false`
	)		const

inline

Appends this expression to a BSON core builder, as a key-value pair of the form "key: {$not: {$cmp: val}}".

Parameters

builder	a BSON core builder
wrap	Whether to wrap the BSON inside a document.
omit_name	Whether to skip the name of the field. This is used primarily in $elemMatch queries with scalar arrays, so one can have a query like {array: {

not: {$gt: 5}}}}

template<typename Expr >

mangrove::not_expr< Expr >::operator bsoncxx::document::view_or_value ( ) const

inline

Converts the expression to a BSON filter for a query.

The resulting BSON is of the form "{key: {$cmp: val}}".

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