CandleAlignment Struct Reference

Candle alignment attribute of CandleSymbol defines how candles are aligned with respect to time. More...

#include <CandleAlignment.hpp>

Inheritance diagram for CandleAlignment:

Public Member Functions
std::string	changeAttributeForSymbol (const StringLike &symbol) const override
	Returns candle event symbol string with this candle alignment set.
std::string	toString () const
	Returns string representation of this candle alignment.

Static Public Member Functions
static std::reference_wrapper< const CandleAlignment >	parse (const StringLike &s)
	Parses string representation of candle alignment into an object.
static std::reference_wrapper< const CandleAlignment >	getAttributeForSymbol (const StringLike &symbol)
	Returns candle alignment of the given candle symbol string.
static std::string	normalizeAttributeForSymbol (const StringLike &symbol)
	Returns candle symbol string with the normalized representation of the candle alignment attribute.

Static Public Attributes
static const CandleAlignment	MIDNIGHT {"m"}
	Align candles at midnight.
static const CandleAlignment	SESSION {"s"}
	Align candles on trading sessions.
static const CandleAlignment	DEFAULT = MIDNIGHT
	Default alignment is CandleAlignment::MIDNIGHT.
static const std::string	ATTRIBUTE_KEY {"a"}
	The attribute key that is used to store the value of CandleAlignment in a symbol string using methods of MarketEventSymbols class.

Detailed Description

Candle alignment attribute of CandleSymbol defines how candles are aligned with respect to time.

Implementation details

This attribute is encoded in a symbol string with MarketEventSymbols.getAttributeStringByKey, changeAttributeStringByKey, and removeAttributeStringByKey methods. The key to use with these methods is available via CandleAlignment::ATTRIBUTE_KEY constant. The value that this key shall be set to is equal to the corresponding CandleAlignment::toString()

Member Function Documentation

changeAttributeForSymbol()

std::string CandleAlignment::changeAttributeForSymbol ( const StringLike & symbol ) const

overridevirtual

Returns candle event symbol string with this candle alignment set.

Parameters

symbol

The original candle event symbol.

Returns

candle event symbol string with this candle alignment set.

Implements CandleSymbolAttribute.

References DEFAULT, and toString().

getAttributeForSymbol()

std::reference_wrapper< const CandleAlignment > CandleAlignment::getAttributeForSymbol ( const StringLike & symbol )

static

Returns candle alignment of the given candle symbol string.

The result is CandleAlignment::DEFAULT if the symbol does not have a candle alignment attribute.

Parameters

symbol

The candle symbol string.

Returns

candle alignment of the given candle symbol string.

References DEFAULT.

normalizeAttributeForSymbol()

std::string CandleAlignment::normalizeAttributeForSymbol ( const StringLike & symbol )

static

Returns candle symbol string with the normalized representation of the candle alignment attribute.

Parameters

symbol

The candle symbol string.

Returns

candle symbol string with the normalized representation of the candle alignment attribute.

References DEFAULT.

parse()

std::reference_wrapper< const CandleAlignment > CandleAlignment::parse ( const StringLike & s )

static

Parses string representation of candle alignment into an object.

Any string returned by CandleAlignment::toString() can be parsed and a case is ignored for parsing.

Parameters

s	The string representation of candle alignment.

Returns

The candle alignment (reference)

Exceptions

InvalidArgumentException

if the string representation is invalid.

toString()

std::string CandleAlignment::toString

(

)

const

Returns string representation of this candle alignment.

The string representation of candle alignment "m" for CandleAlignment::MIDNIGHT and "s" for CandleAlignment::SESSION.

Returns

string representation of this candle alignment.

Referenced by changeAttributeForSymbol().

Member Data Documentation

ATTRIBUTE_KEY

const std::string CandleAlignment::ATTRIBUTE_KEY {"a"}

static

The attribute key that is used to store the value of CandleAlignment in a symbol string using methods of MarketEventSymbols class.

The value of this constant is "a". The value that this key shall be set to is equal to the corresponding CandleAlignment::toString()