tlp::DataSet Class Reference

#include <DataSet.h>

Public Member Functions
	DataSet (const DataSet &set)
bool	empty () const
bool	exists (const std::string &str) const
template<typename T >
bool	get (const std::string &key, T &value) const
template<typename T >
bool	getAndFree (const std::string &key, T &value)
DataType *	getData (const std::string &str) const
template<typename T >
std::string	getTypeName () const
std::string	getTypeName (const std::string &str) const
tlp::Iterator< std::pair< std::string, DataType * > > *	getValues () const
DataSet &	operator= (const DataSet &set)
bool	readData (std::istream &is, const std::string &prop, const std::string &outputTypeName)
void	remove (const std::string &str)
template<typename T >
void	set (const std::string &key, const T &value)
void	setData (const std::string &str, const DataType *value)
unsigned int	size () const
std::string	toString () const
void	writeData (std::ostream &os, const std::string &prop, const DataType *dt) const

Static Public Member Functions
static bool	read (std::istream &is, DataSet &ds)
template<typename T >
static void	registerDataTypeSerializer (const DataTypeSerializer &serializer)
static DataTypeSerializer *	typenameToSerializer (const std::string &name)
static void	write (std::ostream &os, const DataSet &ds)

Detailed Description

A container that can store data from any type.

The DataSet aggregate data of various types into a single structure and map each value to a key (std::string) describing its name. DataSet is mainly used in plugins. When creating a plugin, one can add input parameters (using tlp::WithParameter methods) and retrieve them from the dataSet member variable once they have been set by the user.

Definition at line 189 of file DataSet.h.

Member Function Documentation

empty()

bool tlp::DataSet::empty

(

)

const

Indicates whether the set is empty of not.

exists()

bool tlp::DataSet::exists

(

const std::string &

str

)

const

Parameters

str	the name of the member to look for

Returns

true if str exists into the DataSet.

get()

template<typename T >

bool tlp::DataSet::get	(	const std::string &	key,
		T &	value
	)		const

Returns the stored value associated with the given key. The stored value is a copy of the original value that was set. If there is no value associated with the given key, the input value is left untouched.

Parameters

key	The key with which the data we want to retrieve is associated.
value	A variable which will be overwritten with the value to retrieve.

Returns

bool Whether there is a value associated with given key or not.

Definition at line 23 of file DataSet.cxx.

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getAndFree()

template<typename T >

bool tlp::DataSet::getAndFree	(	const std::string &	key,
		T &	value
	)

Returns the stored value, and deletes the stored copy. If no value is found, nothing is deleted.

Parameters

key	The key with which the data we want to retrieve is associated.
value	A variable which will be overwritten with the value to retrieve.

Returns

bool Whether there is a value associated with given key or not.

Definition at line 38 of file DataSet.cxx.

getData()

DataType* tlp::DataSet::getData

(

const std::string &

str

)

const

Parameters

str	The name of the element to retrieve

Returns

A untyped value for a given element name. nullptr if the element does not exist

getTypeName() [1/2]

template<typename T >

std::string tlp::DataSet::getTypeName ( ) const

inline

Returns the mangled name of a type.

Returns

std::string the mangled name (typeid(T).name())

Definition at line 250 of file DataSet.h.

getTypeName() [2/2]

std::string tlp::DataSet::getTypeName

(

const std::string &

str

)

const

Parameters

str	the name of the member to look for

Returns

the mangled name of the type if str exists into the DataSet. An empty string if not.

getValues()

tlp::Iterator<std::pair<std::string, DataType *> >* tlp::DataSet::getValues

(

)

const

Returns

An iterator over stored values as a std::pair name => untyped value

operator=()

DataSet& tlp::DataSet::operator=

(

const DataSet &

set

)

Performs a deep copy of a DataSet into another.

read()

static bool tlp::DataSet::read ( std::istream &  is, DataSet &  ds  )

static

Reads a stream and stores its contents into a DataSet.

readData()

bool tlp::DataSet::readData	(	std::istream &	is,
		const std::string &	prop,
		const std::string &	outputTypeName
	)

Read a value and stores it into the specified type.

registerDataTypeSerializer()

template<typename T >

static void tlp::DataSet::registerDataTypeSerializer ( const DataTypeSerializer &  serializer )

inlinestatic

Registers a serializer for a known type.

Serializers are used to write/read from std::ostream objects when saving DataSet instances.

Definition at line 260 of file DataSet.h.

remove()

void tlp::DataSet::remove

(

const std::string &

str

)

Removes an element from the DataSet.

Parameters

str	the name of the element to remove

set()

template<typename T >

void tlp::DataSet::set	(	const std::string &	key,
		const T &	value
	)

Stores a copy of the given param, associated with the key. The value must have a well-formed copy constructor.

Parameters

key	The key which can be used to retrieve the data.
value	The data to store.

Returns

void

Definition at line 55 of file DataSet.cxx.

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setData()

void tlp::DataSet::setData	(	const std::string &	str,
		const DataType *	value
	)

Set from an untyped value.

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size()

unsigned int tlp::DataSet::size

(

)

const

Returns the number of registered values.

toString()

std::string tlp::DataSet::toString

(

)

const

Returns

A std::string representation of a DataSet

typenameToSerializer()

static DataTypeSerializer* tlp::DataSet::typenameToSerializer ( const std::string &  name )

static

Returns

the data type serializer associated to the given typename. nullptr if no serializer is found

write()

static void tlp::DataSet::write ( std::ostream &  os, const DataSet &  ds  )

static

Serializes a DataSet into a stream.

writeData()

void tlp::DataSet::writeData	(	std::ostream &	os,
		const std::string &	prop,
		const DataType *	dt
	)		const

write an embedded value