#include <OnixS/Eurex/MarketData/StringRef.h>

Public Types
typedef const char *	ConstIterator

Public Member Functions
	StringRef ()

	StringRef (const char *chars, size_t size)

	StringRef (const StringRef &other)

	StringRef (const std::string &stdStr)

	StringRef (const char *cStr)

bool	empty () const

const char *	data () const

ConstIterator	begin () const

ConstIterator	end () const

size_t	size () const

void	reset ()

void	reset (const char *chars, size_t size)

const char &	operator[] (size_t index) const

const char &	at (size_t index) const

template<typename NumericType >
bool	toNumber (NumericType &number) const

void	toString (std::string &str) const

std::string	toString () const

bool	operator== (const StringRef &other) const

bool	operator!= (const StringRef &other) const

StringRef &	operator= (const StringRef &other)

void	swap (StringRef &other)

Detailed Description

Provides efficient way of accessing text-based FIX field values.

By default, OnixS::FIX::Message and OnixS::FIX::GroupInstance classes convert all values assigned to the fields into their text presentations and store textual data. This approach optimizes message reuse when same instance of message is used to update a few fields and is sent over FIX session multiple times. Also, when message comes from the network and is deserialized from its raw (tag=value) presentation, all field values in fact represent segments of text. To have access to textual values, StringRef class was added together with new access members (FieldSet::getStringRef()). If value is accessed using FieldSet::getStringRef() member, instance of StringRef class is returned. That instance holds reference to a read-only segment of text. An important aspect is that no memory is allocated and copied while accessing field values that way.

Definition at line 51 of file StringRef.h.

Member Typedef Documentation

typedef const char* ConstIterator

Immutable iterator over chars.

Definition at line 57 of file StringRef.h.

Constructor & Destructor Documentation

StringRef ( )

inline

Initializes blank instance.

Definition at line 60 of file StringRef.h.

StringRef	(	const char *	chars,
		size_t	size
	)

inline

Full initialization.

Definition at line 67 of file StringRef.h.

StringRef ( const StringRef & other )

inline

Initializes as clone of other instance. Data referenced by clone is not copied. Instead both instances will refer to same text segment.

Definition at line 78 of file StringRef.h.

StringRef ( const std::string & stdStr )

inlineexplicit

Initializes instance from string content.

Definition at line 86 of file StringRef.h.

StringRef ( const char * cStr )

inline

Initializes instance from zero-terminated string.

Definition at line 93 of file StringRef.h.

Member Function Documentation

const char& at ( size_t index ) const

inline

Definition at line 152 of file StringRef.h.

ConstIterator begin ( ) const

inline

STL-like begin().

Definition at line 112 of file StringRef.h.

const char* data ( ) const

inline

Read-only content.

Definition at line 106 of file StringRef.h.

bool empty ( ) const

inline

Indicates whether array of zero length.

Definition at line 100 of file StringRef.h.

ConstIterator end ( ) const

inline

STL-like end().

Definition at line 118 of file StringRef.h.

bool operator!= ( const StringRef & other ) const

inline

Compares with another instance.

Definition at line 201 of file StringRef.h.

StringRef& operator= ( const StringRef & other )

inline

Reinitializes from another instance.

Definition at line 213 of file StringRef.h.

bool operator== ( const StringRef & other ) const

inline

Compares with another instance.

Definition at line 189 of file StringRef.h.

const char& operator[] ( size_t index ) const

inline

Definition at line 146 of file StringRef.h.

void reset ( )

inline

Resets reference to nothing.

Definition at line 130 of file StringRef.h.

void reset	(	const char *	chars,
		size_t	size
	)

inline

Updates data being referenced.

Definition at line 137 of file StringRef.h.

size_t size ( ) const

inline

Number of chars.

Definition at line 124 of file StringRef.h.

void swap ( StringRef & other )

inline

Swaps content with other instance.

Definition at line 224 of file StringRef.h.

bool toNumber ( NumericType & number ) const

inline

Returns number if text is string representation of an integer.

Definition at line 167 of file StringRef.h.

void toString ( std::string & str ) const

inline

Definition at line 175 of file StringRef.h.

std::string toString ( ) const

inline

Definition at line 182 of file StringRef.h.

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

include/OnixS/Eurex/MarketData/StringRef.h

Public Types

Public Member Functions

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation