oxy::api::metadata::count_fn Struct Reference

Function object to count the number of records in the container metadata database. More...

#include <metadata.hpp>

Public Member Functions
int64_t	operator() (context_t const &ctx) const
int64_t	operator() (context_t const &ctx, std::string const &expr) const

Detailed Description

Function object to count the number of records in the container metadata database.

This function object provides two operator() overloads: one that takes a context and returns the count of all records, and another that takes a context and an expression string for counting records that match the specified expression. It is designed to be used in a constexpr context for compile-time evaluation of record counting operations.

Member Function Documentation

operator()() [1/2]

int64_t oxy::api::metadata::count_fn::operator()

(

context_t const &

ctx

)

const

Parameters

ctx	- The context for container metadata record operations.

Returns

The count of all records in the container metadata database.

operator()() [2/2]

int64_t oxy::api::metadata::count_fn::operator()	(	context_t const &	ctx,
		std::string const &	expr ) const

Parameters

ctx	- The context for container metadata record operations.
expr	- The expression string to filter the count of records.

Returns

The count of records in the container metadata database that match the specified expression.