drn::storage::ExchangeRatesStorage Struct Reference

Manages the storage and retrieval of exchange rate data. More...

#include <ExchangeRatesStorage.hpp>

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Public Member Functions
	ExchangeRatesStorage ()=default
	ExchangeRatesStorage (const ExchangeRatesStorage &)=delete
	ExchangeRatesStorage (ExchangeRatesStorage &&)=default
virtual	~ExchangeRatesStorage ()=default
virtual bool	exists () const noexcept=0
	When implemented, determines if the exchange rates cache exists.
virtual conversion::ConversionMap	load () const =0
	When implemented, loads the cached exchange rates.
ExchangeRatesStorage &	operator= (const ExchangeRatesStorage &)=delete
ExchangeRatesStorage &	operator= (ExchangeRatesStorage &&)=default
virtual void	remove () const =0
	When implemented, removes the cached exchange rates.
virtual void	store (const conversion::ConversionMap &cm) const =0
	When implemented, creates or overwrites the exchange rates cache.

Detailed Description

Manages the storage and retrieval of exchange rate data.

It is designed to facilitate the handling of exchange rate information. Usage of this class requires an appropriate storage back-end (e.g., database or in-memory storage).

Constructor & Destructor Documentation

ExchangeRatesStorage() [1/3]

drn::storage::ExchangeRatesStorage::ExchangeRatesStorage ( )

default

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ExchangeRatesStorage() [2/3]

drn::storage::ExchangeRatesStorage::ExchangeRatesStorage ( const ExchangeRatesStorage & )

delete

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ExchangeRatesStorage() [3/3]

drn::storage::ExchangeRatesStorage::ExchangeRatesStorage ( ExchangeRatesStorage && )

default

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~ExchangeRatesStorage()

virtual drn::storage::ExchangeRatesStorage::~ExchangeRatesStorage ( )

virtualdefault

Member Function Documentation

exists()

virtual bool drn::storage::ExchangeRatesStorage::exists ( ) const

nodiscardpure virtualnoexcept

When implemented, determines if the exchange rates cache exists.

Returns

True when the cache exists, false else-wise.

Implemented in drn::file_storage::ExchangeRatesFile.

load()

virtual conversion::ConversionMap drn::storage::ExchangeRatesStorage::load ( ) const

nodiscardpure virtual

When implemented, loads the cached exchange rates.

Exceptions

StorageError

When the exchange rates cache is not valid.

Returns

The loaded exchange rates.

Implemented in drn::file_storage::ExchangeRatesFile.

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operator=() [1/2]

ExchangeRatesStorage & drn::storage::ExchangeRatesStorage::operator= ( const ExchangeRatesStorage & )

delete

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operator=() [2/2]

ExchangeRatesStorage & drn::storage::ExchangeRatesStorage::operator= ( ExchangeRatesStorage && )

default

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remove()

virtual void drn::storage::ExchangeRatesStorage::remove ( ) const

pure virtual

When implemented, removes the cached exchange rates.

Implemented in drn::file_storage::ExchangeRatesFile.

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store()

virtual void drn::storage::ExchangeRatesStorage::store ( const conversion::ConversionMap & cm ) const

pure virtual

When implemented, creates or overwrites the exchange rates cache.

Exceptions

StorageError

When the exchange rates cache cannot be saved.

Parameters

[in]

cm

The exchange rates whose contents are to be cached.

Implemented in drn::file_storage::ExchangeRatesFile.

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