NoMap< OutputType > Class Template Reference

Identity map (aka, NoMap). More...

#include "keyvalue/key/map/NoMap.h"

List of all members.

Public Types
typedef OutputType	OutputType_
Public Member Functions
OutputType	map (const value::Variant &variant) const
	Performs the mapping.
Private Types
typedef boost::is_same < OutputType, bool >::type	IsBool_
typedef boost::is_same < OutputType, double >::type	IsDouble_
typedef boost::is_same < OutputType, ptime >::type	IsPtime_
typedef boost::is_same < OutputType, string >::type	IsString_
typedef boost::is_same < OutputType, unsigned int > ::type	IsUInt_
Private Member Functions
virtual string	getName () const =0
	Gets Key's name.
	BOOST_STATIC_ASSERT (IsBool_::value||IsDouble_::value||IsString_::value||IsPtime_::value||IsUInt_::value)

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Detailed Description

template<typename OutputType>
class keyvalue::key::NoMap< OutputType >

Identity map (aka, NoMap).

The input value is mapped to itself. For example, the value associated to key "Price" is supposed to be a double which must be passed on, without any kind of mapping or, in other terms, mapped by the identity function.

Remark: Only instance for Output equal to bool, double, ptime, string or unsigned int are provided.

Parameters:

OutputType

: (template parameter) Output type.

Return values:

OutputType_

: Same as OutputType.

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Member Function Documentation

OutputType map

(

const value::Variant &

variant

)

const

Performs the mapping.

This method retrieves the content of value::Variant and, by considering enabled lexical convertions, converts it to Output. (See LexicalToolKit documentation.)

Parameters:

variant

: A value::Variant containing the input to be mapped.

Returns:

The mapping result.

virtual string getName

(

)

const [private, pure virtual]

Gets Key's name.

Returns:

The Key's name.

Implemented in Traits< ElementType, StdVector, NoMap >, Traits< double, StdSingle, NoMap >, and Traits< ElementType, StdSingle, NoMap >.