The DeviceFactory is designed as a bridge pattern to allow sub-classing of the class interface (DeviceFactory) and the class implementation (this one) separately. This DeviceFactoryImp is the abstract-class that declares the interface to the underlying device-factory implementation (Shm, Heap). It instantiates all devices, global-device, domain-store and initializes everything. More...

#include <DeviceFactoryImp.h>

Inheritance diagram for fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >:

Public Member Functions
	DeviceFactoryImp (const std::string &className, const std::string &classVersion)
	Constructor. More...

virtual	~DeviceFactoryImp ()
	destructor

const std::vector< DevInstType * > &	getDeviceCollection () const
	Method retrieves all concrete devices which belong to device factory. More...

const std::vector < DomainStoreType * > &	getDomainStoreCollection () const
	Method retrieves all concrete domain stores which belong to device factory. More...

GlobalDeviceType *	getGlobalDevice () const
	Method retrieves global device which belongs to device factory. More...

DevInstType *	getDevice (const std::string &deviceName) const
	this method retrieves the device instance by its name More...

DomainStoreType *	getDomainStore (const std::string &domainStoreName) const
	this method retrieves the domain store instance by its name More...

void	initialize (boost::shared_ptr< ClassElement > &instantiationXMLElementClass)
	this method is responsible for the device data initialization: More...

Protected Member Functions
virtual bool	setUpMemory ()=0
	creates the shared-memory, maps and initializes all the fields More...

void	computeMemorySize ()
	computes the heap memory size relying on fields size and multiplexing depth in particular. More...

void	mapFields (char *p, bool initializeFields)
	maps the fields-value object into the heap-memory space More...

void	unmapFields ()
	unmaps the fields-value object into the heap-memory space

void	registerPersistenceFields ()
	registers persistent fields in persistency unit needed for persistency mechanism

Protected Attributes
std::vector< DevInstType * >	pDeviceCol_
	vector of devices that belong to device factory

std::map< std::string, DevInstType * >	deviceNameToDevice_

std::vector< DomainStoreType * >	pDomainStoreCol_
	vector of domain stores that belong to device factory

GlobalDeviceType *	pGlobalDevice_
	global device that belong to device factory

std::size_t	size_
	memory size of complete heap that is used

std::size_t	globalDeviceSize_
	size of memory for global device

std::size_t	domainStoreSize_
	size of memory for domain store

std::size_t	devicesSize_
	size of memory for devices

std::size_t	muxManagersSize_
	size of memory for multiplexing managers

std::string	className_
	name of class to which the device factory belongs

std::string	classVersion_
	version of the class to which the device factory belongs

Detailed Description

template<typename GlobalDeviceType, typename DomainStoreType, typename DevInstType>
class fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >

The DeviceFactory is designed as a bridge pattern to allow sub-classing of the class interface (DeviceFactory) and the class implementation (this one) separately. This DeviceFactoryImp is the abstract-class that declares the interface to the underlying device-factory implementation (Shm, Heap). It instantiates all devices, global-device, domain-store and initializes everything.

Parameters

GlobalDeviceType	is the type of the concrete GlobalDevice class
DomainStoreType	is the type of the concrete DomainStore class
DevInstType	is the type of the concrete Device class

Constructor & Destructor Documentation

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::DeviceFactoryImp	(	const std::string &	className,
		const std::string &	classVersion
	)

Constructor.

Parameters

className	name of the class to which the device factory belongs
classVersion	version of the class to which the device factory belongs

Member Function Documentation

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

void fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::computeMemorySize ( )

protected

computes the heap memory size relying on fields size and multiplexing depth in particular.

Exceptions

FesaException

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

DevInstType * fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::getDevice ( const std::string & deviceName ) const

this method retrieves the device instance by its name

Parameters

deviceName the name of the device

Returns: concrete device reference or NULL if the device is not found

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

const std::vector< DevInstType * > & fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::getDeviceCollection ( ) const

inline

Method retrieves all concrete devices which belong to device factory.

Returns: vector of devices

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

DomainStoreType * fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::getDomainStore ( const std::string & domainStoreName ) const

this method retrieves the domain store instance by its name

Parameters

domainStoreName the name of the device

Returns: concrete domain store reference or NULL if the domain store is not found

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

const std::vector< DomainStoreType * > & fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::getDomainStoreCollection ( ) const

inline

Method retrieves all concrete domain stores which belong to device factory.

Returns: vector of domain stores

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

GlobalDeviceType * fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::getGlobalDevice ( ) const

inline

Method retrieves global device which belongs to device factory.

Returns: global device

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

void fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::initialize ( boost::shared_ptr< ClassElement > & instantiationXMLElementClass )

this method is responsible for the device data initialization:

extracts data from the XML documents
instantiates the devices and set-up the deviceCollection
instantiates the domain data-store
initializes all the fields
Parameters

instantiationXMLElementClass Used to access the class-specific XML-data of the instantiation-file

Exceptions

FesaException

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

void fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::mapFields	(	char *	p,
		bool	initializeFields
	)

protected

maps the fields-value object into the heap-memory space

Exceptions

FesaException

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

virtual bool fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::setUpMemory ( )

protectedpure virtual

creates the shared-memory, maps and initializes all the fields

Returns: true: shared-memory has been created; false: shared-memory already exist, has been attached only

Implemented in fesa::MemoryMappedFileFactory< GlobalDeviceType, DomainStoreType, DevInstType >, and fesa::HeapFactory< GlobalDeviceType, DomainStoreType, DevInstType >.

Member Data Documentation

template<typename GlobalDeviceType , typename DomainStoreType , typename DevInstType >

std::map<std::string, DevInstType*> fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >::deviceNameToDevice_

protected

Maps device name to device pointer. Used to speed up device look-up.

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

DeviceFactoryImp.h

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

template<typename GlobalDeviceType, typename DomainStoreType, typename DevInstType> class fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<typename GlobalDeviceType, typename DomainStoreType, typename DevInstType>
class fesa::DeviceFactoryImp< GlobalDeviceType, DomainStoreType, DevInstType >