Base class for field-storage classes in the framework: Device, GlobalDevice and DomainStore. More...

#include <DataStore.h>

Inheritance diagram for fesa::DataStore:

Public Member Functions
	DataStore ()
	Constructor.

virtual	~DataStore ()
	destructor

virtual const std::string &	getName () const
	Get the name of the data store.

boost::optional< int64_t >	getId () const

FaultSeverity::FaultSeverity	getStatus (const MultiplexingContext context, std::vector< const char > &faultDescriptions) const
	Get the status of the data store. More...

const std::vector < AbstractField * > &	getFieldCollection () const
	Retrieve the collection of fields. More...

const std::vector < AbstractField * > &	getPersistentFieldsCollection () const
	Method to retrieve the setting field collection of that data store. More...

AbstractField *	getField (const std::string &name) const
	Retrieves a pointer to a concrete field. More...

std::size_t	getMemorySizeToAllocate (bool multiProcess) const
	Returns the size of the shared fields of this object.

void	mapMemory (char *p, bool multiProcess, bool initializeFields)
	Maps shared fields and attributes to memory. More...

void	registerFaultField (AbstractField *field)
	Register a fault field in the data store. More...

Protected Member Functions
void	initializeFieldDefaultValues (const boost::shared_ptr< DataStoreElement > &dataStoreElement)
	initializes all fields of this device with default-values from the instantiation-file More...

virtual void	initializeOtherFieldValues (const boost::shared_ptr< DataStoreElement > &dataStoreElement)

void	initializeFieldDimensions (const boost::shared_ptr< DataStoreElement > &dataStoreElement)
	initializes all fields of this data-store with the dimensions, defined in the instantiation-file More...

virtual void	initialize ()
	This method initialize the datastore.

virtual void	restoreFromElement (PersistanceDataStoreElement &element)
	this method restores the data store with the element passed as a parameter More...

virtual void	registerField (AbstractField *field)
	Registers a new field in the current field collection. More...

void	registerRelatedField (AbstractField mainField, AbstractField relatedField)
	Registers a related field of a field. Initializing the dimensions of the field will initialize the dimensions of its related field with the same value. This is a unidirectional relation. A related field cannot be the main field of another field. More...

virtual std::size_t	getSizeOfAdditionalFields () const
	Get the size related to non-Fesa-type fields. More...

virtual void	mapAdditionalFields (char *p)
	Map the non-Fesa-type fields. More...

Protected Attributes
std::vector< AbstractField * >	fields_
	field collection containing all fields of the data store

std::vector< AbstractField * >	persistentFields_
	setting collection containing all the persistent fields

std::map< AbstractField , AbstractField >	relatedFields_
	maps a field to its related field. Used for example by history fields, so that initializing dimensions of the main field also initializes dimensions of the related field. This is a unidirectional relation. Bidirectional relations are forbidden as they may produce infinite loops.

RWLock *	pRWLock_
	read-write lock used to lock data store during synchronization of setting fields

Detailed Description

Base class for field-storage classes in the framework: Device, GlobalDevice and DomainStore.

Member Function Documentation

AbstractField * fesa::DataStore::getField ( const std::string & name ) const

Retrieves a pointer to a concrete field.

Parameters

name	name of the field

Returns: a AbstractField pointer to the field searched, or NULL if the field doesn't exist.

const std::vector< AbstractField * > & fesa::DataStore::getFieldCollection ( ) const

inline

Retrieve the collection of fields.

Returns: The collection of all fields

boost::optional< int64_t > fesa::DataStore::getId ( ) const

Returns the unique identifier of this device, if available.

const std::vector< AbstractField * > & fesa::DataStore::getPersistentFieldsCollection ( ) const

inline

Method to retrieve the setting field collection of that data store.

Returns: a vector of AbstractFields containing all the setting fields

std::size_t fesa::DataStore::getSizeOfAdditionalFields ( ) const

protectedvirtual

Get the size related to non-Fesa-type fields.

Returns: The size related to specific non-Fesa-type fields

Reimplemented in fesa::AbstractDevice, and fesa::DomainStore.

FaultSeverity::FaultSeverity fesa::DataStore::getStatus	(	const MultiplexingContext *	context,
		std::vector< const char * > &	faultDescriptions
	)		const

Get the status of the data store.

Parameters

context	The multiplexing context
faultDescriptions	The descriptions of all the raised fault fields of the warning or error severity

Returns: The highest severity of all the raised fault fields

void fesa::DataStore::initializeFieldDefaultValues ( const boost::shared_ptr< DataStoreElement > & dataStoreElement )

protected

initializes all fields of this device with default-values from the instantiation-file

Parameters

dataStoreElement data-store-element from the instantiation-file

void fesa::DataStore::initializeFieldDimensions ( const boost::shared_ptr< DataStoreElement > & dataStoreElement )

protected

initializes all fields of this data-store with the dimensions, defined in the instantiation-file

Parameters

dataStoreElement data-store-element from the instantiation-file

void fesa::DataStore::initializeOtherFieldValues ( const boost::shared_ptr< DataStoreElement > & dataStoreElement )

protectedvirtual

Extension point called at the end of initializeFieldDefaultValues. Can be used by child classes to initialize fields which are not initialized by initializeFieldDefaultValues.

Reimplemented in fesa::AbstractDevice.

void fesa::DataStore::mapAdditionalFields ( char * p )

protectedvirtual

Map the non-Fesa-type fields.

Parameters

Pointer to the allocated memory

Reimplemented in fesa::AbstractDevice, and fesa::DomainStore.

void fesa::DataStore::mapMemory	(	char *	p,
		bool	multiProcess,
		bool	initializeFields
	)

Maps shared fields and attributes to memory.

Parameters

p	pointer to the memory allocated to be used by the data store
multiProcess	true if multiple processes will access the shared fields and attributes
initializeFields	indicates if the field object has to be initialized.

void fesa::DataStore::registerFaultField ( AbstractField * field )

Register a fault field in the data store.

Parameters

field The field to be registered in the data store

void fesa::DataStore::registerField ( AbstractField * field )

protectedvirtual

Registers a new field in the current field collection.

Parameters

field pointer to the AbstractField to be registered in the field collection

void fesa::DataStore::registerRelatedField	(	AbstractField *	mainField,
		AbstractField *	relatedField
	)

protected

Registers a related field of a field. Initializing the dimensions of the field will initialize the dimensions of its related field with the same value. This is a unidirectional relation. A related field cannot be the main field of another field.

Exceptions

FesaException if relatedField is already registered as a main field

void fesa::DataStore::restoreFromElement ( PersistanceDataStoreElement & element )

protectedvirtual

this method restores the data store with the element passed as a parameter

Parameters

PersistanceDataStoreElement that contains the information

Reimplemented in fesa::AbstractDevice.

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

DataStore.h
DataStore.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation