MetaInfo Class Reference

A Type-Name-Value tuple class. More...

#include <OpenMS/METADATA/MetaInfo.h>

Public Member Functions
	MetaInfo ()
	Constructor. More...
	MetaInfo (const MetaInfo &rhs)
	Copy constructor. More...
	~MetaInfo ()
	Destructor. More...
MetaInfo &	operator= (const MetaInfo &rhs)
	Assignment operator. More...
bool	operator== (const MetaInfo &rhs) const
	Equality operator. More...
bool	operator!= (const MetaInfo &rhs) const
	Equality operator. More...
const DataValue &	getValue (const String &name) const
	Returns the value corresponding to a string (or DataValue::EMPTY if not found) More...
const DataValue &	getValue (UInt index) const
	Returns the value corresponding to an index (or DataValue::EMPTY if not found) More...
bool	exists (const String &name) const
	Returns whether an entry with the given name exists. More...
bool	exists (UInt index) const
	Returns whether an entry with the given index exists. More...
void	setValue (const String &name, const DataValue &value)
	Sets the DataValue corresponding to a name. More...
void	setValue (UInt index, const DataValue &value)
	Sets the DataValue corresponding to an index. More...
void	removeValue (const String &name)
	Removes the DataValue corresponding to name if it exists. More...
void	removeValue (UInt index)
	Removes the DataValue corresponding to index if it exists. More...
void	getKeys (std::vector< String > &keys) const
	Fills the given vector with a list of all keys for which a value is set. More...
void	getKeys (std::vector< UInt > &keys) const
	Fills the given vector with a list of all keys for which a value is set. More...
bool	empty () const
	Returns if the MetaInfo is empty. More...
void	clear ()
	Removes all meta values. More...

Static Public Member Functions
static MetaInfoRegistry &	registry ()
	Returns a reference to the MetaInfoRegistry. More...

Private Attributes
std::map< UInt, DataValue >	index_to_value_
	The actual mapping of indexes to values. More...

Static Private Attributes
static MetaInfoRegistry	registry_
	Static MetaInfoRegistry. More...

Detailed Description

A Type-Name-Value tuple class.

MetaInfo maps an index (an integer corresponding to a string) to DataValue objects. The mapping of strings to the index is performed by the MetaInfoRegistry, which can be accessed by the method registry().

There are two versions of nearly all members. One which operates with a string name and another one which operates on an index. The index version is always faster, as it does not need to look up the index corresponding to the string in the MetaInfoRegistry.

If you wish to add a MetaInfo member to a class, consider deriving that class from MetaInfoInterface, instead of simply adding MetaInfo as member. MetaInfoInterface implements a full interface to a MetaInfo member and is more memory efficient if no meta info gets added.

Constructor & Destructor Documentation

MetaInfo() [1/2]

MetaInfo

(

)

Constructor.

MetaInfo() [2/2]

MetaInfo

(

const MetaInfo &

rhs

)

Copy constructor.

~MetaInfo()

~MetaInfo

(

)

Destructor.

Member Function Documentation

clear()

void clear

(

)

Removes all meta values.

empty()

bool empty

(

)

const

Returns if the MetaInfo is empty.

exists() [1/2]

bool exists

(

const String &

name

)

const

Returns whether an entry with the given name exists.

exists() [2/2]

bool exists

(

UInt

index

)

const

Returns whether an entry with the given index exists.

getKeys() [1/2]

void getKeys

(

std::vector< String > &

keys

)

const

Fills the given vector with a list of all keys for which a value is set.

getKeys() [2/2]

void getKeys

(

std::vector< UInt > &

keys

)

const

Fills the given vector with a list of all keys for which a value is set.

getValue() [1/2]

const DataValue& getValue

(

const String &

name

)

const

Returns the value corresponding to a string (or DataValue::EMPTY if not found)

getValue() [2/2]

const DataValue& getValue

(

UInt

index

)

const

Returns the value corresponding to an index (or DataValue::EMPTY if not found)

operator!=()

bool operator!=

(

const MetaInfo &

rhs

)

const

Equality operator.

operator=()

MetaInfo& operator=

(

const MetaInfo &

rhs

)

Assignment operator.

operator==()

bool operator==

(

const MetaInfo &

rhs

)

const

Equality operator.

registry()

static MetaInfoRegistry& registry ( )

static

Returns a reference to the MetaInfoRegistry.

removeValue() [1/2]

void removeValue

(

const String &

name

)

Removes the DataValue corresponding to name if it exists.

removeValue() [2/2]

void removeValue

(

UInt

index

)

Removes the DataValue corresponding to index if it exists.

setValue() [1/2]

void setValue	(	const String &	name,
		const DataValue &	value
	)

Sets the DataValue corresponding to a name.

setValue() [2/2]

void setValue	(	UInt	index,
		const DataValue &	value
	)

Sets the DataValue corresponding to an index.

Member Data Documentation

index_to_value_

std::map<UInt, DataValue> index_to_value_

private

The actual mapping of indexes to values.

registry_

MetaInfoRegistry registry_

staticprivate

Static MetaInfoRegistry.