oxy::api::metadata::select_fn Struct Reference

Function object to select OIDs from the container metadata database based on an expression. More...

#include <metadata.hpp>

Public Types
using	coro_t = boost::coroutines2::coroutine<oid_t>

Public Member Functions
auto	operator() (context_t const &ctx) const -> coro_t::pull_type
auto	operator() (context_t const &ctx, std::string const &expr) const -> coro_t::pull_type

Detailed Description

Function object to select OIDs from the container metadata database based on an expression.

This function object provides two operator() overloads: one that takes a context and returns a pull coroutine for iterating over all OIDs, and another that takes a context and an expression string for iterating over OIDs that match the specified expression. It is designed to be used in a coroutine-based context for efficient selection of OIDs from the container metadata database.

Member Function Documentation

operator()() [1/2]

auto oxy::api::metadata::select_fn::operator()

(

context_t const &

ctx

)

const -> coro_t::pull_type

Parameters

ctx	- The context for container metadata record operations.

Returns

A coroutine pull type that yields OIDs from the container metadata database.

operator()() [2/2]

auto oxy::api::metadata::select_fn::operator()	(	context_t const &	ctx,
		std::string const &	expr ) const -> coro_t::pull_type

Parameters

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

Returns

A coroutine pull type that yields OIDs from the container metadata database that match the specified expression.