Arp::Plc::Commons::Meta::DataInfoProvider Class Reference

Provides information of component root variables More...

#include <DataInfoProvider.hpp>

Inheritance diagram for Arp::Plc::Commons::Meta::DataInfoProvider:

Public Types
using	Roots = std::map< String, DataInfo >
Public Types inherited from Arp::Plc::Commons::Meta::IDataInfoProvider
using	Ptr = std::shared_ptr< IDataInfoProvider >
	std::shared_ptr to IDataInfoProvider

Public Member Functions
	DataInfoProvider (const char *libraryNamespace, ProgramProviderBase *pProgramProvider=nullptr)
	Constructs an DataInfoProvider instance. More...
	DataInfoProvider (const DataInfoProvider &arg)=default
	Copy constructor.
	DataInfoProvider (DataInfoProvider &&arg)=default
	Move constructor
DataInfoProvider &	operator= (const DataInfoProvider &arg)=default
	Copy assignment operator.
DataInfoProvider &	operator= (DataInfoProvider &&arg)=default
	Move assignment operator
	~DataInfoProvider (void) override=default
	Destructs this instance and frees all resources.
const String &	GetLibraryNamespace () const
	Returns the library namespace
IDataInfoProvider &	GetBackgroundProvider (void)
	Returns an IDataInfoProvider for the background domain More...
void	Reset (void)
	Removes all variable information
void	AddRootInfo (const DataInfo &rootInfo)
	Adds information about a component root More...
void	RemoveRootInfo (const String &name)
	Removes the information about the specified variable More...
template<class T >
void	AddRoot (const char *name, const T &value)
	Deduces the required information of a root variable and add it More...
IEnumerator< constDataInfo & >::Ptr	GetRoots (void) override
	Returns an IEnumerator to enumerate all root variables of the component More...
DataInfo	GetRoot (const String &name) override
	Returns the requested root variable of the component More...
virtual IEnumerator< constDataInfo & >::Ptr	GetRoots (void)=0
	Returns an IEnumerator to enumerate all root variables of the component More...
virtual DataInfo	GetRoot (const String &name)=0
	Returns the requested root variable of the component More...

Friends
class	Arp::Plc::Commons::Meta::ChangeDataInfoProvider

Additional Inherited Members
Protected Member Functions inherited from Arp::Plc::Commons::Meta::IDataInfoProvider
	IDataInfoProvider (void)=default
	Constructs an IDataInfoProvider instance.
virtual	~IDataInfoProvider (void)=default
	Destructs this instance and frees all resources.

Detailed Description

Provides information of component root variables

Each component providing variables needs to provide information about the component's root variables with a IDataInfo provider. This class is typically used to by C++ components. The information about the variables is deduced by the AddRoot function.

Constructor & Destructor Documentation

DataInfoProvider()

Arp::Plc::Commons::Meta::DataInfoProvider::DataInfoProvider	(	const char *	libraryNamespace,
		ProgramProviderBase *	pProgramProvider = nullptr
	)

Constructs an DataInfoProvider instance.

Providing a ProgramProviderBase pointer is deprecated. keeping track of programs is done in ProgramComponentBase.

Member Function Documentation

AddRoot()

template<class T >

void Arp::Plc::Commons::Meta::DataInfoProvider::AddRoot ( const char *  name, const T &  value  )

inline

Deduces the required information of a root variable and add it

Parameters

name	Name of the variable
value	Reference of the variable to add

All required information except the name and the address is deduced at compile time. This function is used in almost all cases to add root variables.

AddRootInfo()

void Arp::Plc::Commons::Meta::DataInfoProvider::AddRootInfo

(

const DataInfo &

rootInfo

)

Adds information about a component root

Parameters

rootInfo

DataInfo object for the root variable

GetBackgroundProvider()

IDataInfoProvider & Arp::Plc::Commons::Meta::DataInfoProvider::GetBackgroundProvider

(

void

)

Returns an IDataInfoProvider for the background domain

The property IsBackgroundDomain is set to true on all objects returned by the background provider.

GetRoot()

DataInfo Arp::Plc::Commons::Meta::DataInfoProvider::GetRoot ( const String &  name )

overridevirtual

Returns the requested root variable of the component

Parameters

name	Name of the root variable

Returns

DataInfo object for the variable or an empty DataInfo if name is not found

Implements Arp::Plc::Commons::Meta::IDataInfoProvider.

GetRoots()

IEnumerator< constDataInfo & >::Ptr Arp::Plc::Commons::Meta::DataInfoProvider::GetRoots ( void  )

overridevirtual

Returns an IEnumerator to enumerate all root variables of the component

Implements Arp::Plc::Commons::Meta::IDataInfoProvider.

RemoveRootInfo()

void Arp::Plc::Commons::Meta::DataInfoProvider::RemoveRootInfo

(

const String &

name

)

Removes the information about the specified variable

Parameters

name	Name of the variable to be removed

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

• Arp/Plc/Commons/Meta/DataInfoProvider.hpp
• Arp/Plc/Commons/Meta/DataInfoProvider.cpp