#include <itkObjectFactoryBase.h>

Inheritance diagram for itk::ObjectFactoryBase:

Collaboration diagram for itk::ObjectFactoryBase:

Detailed Description

Create instances of classes using an object factory.

ObjectFactoryBase is used to create itk objects. The base class ObjectFactoryBase contains a static method CreateInstance() that is used to create itk objects from the list of registerd ObjectFactoryBase sub-classes. The first time CreateInstance() is called, all dll's or shared libraries in the environment variable ITK_AUTOLOAD_PATH are loaded into the current process. The C function itkLoad is called on each dll. itkLoad should return an instance of the factory sub-class implemented in the shared library. ITK_AUTOLOAD_PATH is an environment variable containing a colon separated (semi-colon on win32) list of paths.

This can be use to overide the creation of any object in ITK.

Definition at line 58 of file itkObjectFactoryBase.h.

Classes
class	OverrideInformation

Public Types
typedef SmartPointer< const Self >	ConstPointer

enum	InsertionPositionType { INSERT_AT_FRONT, INSERT_AT_BACK, INSERT_AT_POSITION }

typedef SmartPointer< Self >	Pointer

typedef ObjectFactoryBase	Self

typedef Object	Superclass

Public Types inherited from itk::Object
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef Object	Self

typedef LightObject	Superclass

Public Types inherited from itk::LightObject
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef LightObject	Self

Public Member Functions
virtual void	Disable (const char *className)

virtual std::list< std::string >	GetClassOverrideDescriptions ()

virtual std::list< std::string >	GetClassOverrideNames ()

virtual std::list< std::string >	GetClassOverrideWithNames ()

virtual const char *	GetDescription (void) const =0

virtual bool	GetEnableFlag (const char className, const char subclassName)

virtual std::list< bool >	GetEnableFlags ()

virtual const char *	GetITKSourceVersion (void) const =0

const char *	GetLibraryPath ()

virtual const char *	GetNameOfClass () const

virtual void	SetEnableFlag (bool flag, const char className, const char subclassName)

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *)

unsigned long	AddObserver (const EventObject &event, Command *) const

virtual LightObject::Pointer	CreateAnother () const override

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	GetMTime () const

virtual const TimeStamp &	GetTimeStamp () const

bool	HasObserver (const EventObject &event) const

void	InvokeEvent (const EventObject &)

void	InvokeEvent (const EventObject &) const

virtual void	Modified () const

virtual void	Register () const override

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag)

void	SetDebug (bool debugFlag) const

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

virtual void	SetReferenceCount (int) override

virtual void	UnRegister () const noexceptoverride

virtual void	SetObjectName (std::string _arg)

virtual const std::string &	GetObjectName () const

Public Member Functions inherited from itk::LightObject
virtual void	Delete ()

virtual int	GetReferenceCount () const

	itkCloneMacro (Self)

void	Print (std::ostream &os, Indent indent=0) const

Static Public Member Functions
static std::list < LightObject::Pointer >	CreateAllInstance (const char *itkclassname)

static LightObject::Pointer	CreateInstance (const char *itkclassname)

static std::list < ObjectFactoryBase * >	GetRegisteredFactories ()

static void	RegisterFactoryInternal (ObjectFactoryBase *)

static void	ReHash ()

static void	UnRegisterAllFactories ()

static void	UnRegisterFactory (ObjectFactoryBase *)


static bool	RegisterFactory (ObjectFactoryBase *, InsertionPositionType where=INSERT_AT_BACK, vcl_size_t position=0)


static void	SetStrictVersionChecking (bool)

static void	StrictVersionCheckingOn ()

static void	StrictVersionCheckingOff ()

static bool	GetStrictVersionChecking ()

Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool flag)

Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Protected Member Functions
virtual std::list < LightObject::Pointer >	CreateAllObject (const char *itkclassname)

virtual LightObject::Pointer	CreateObject (const char *itkclassname)

	ObjectFactoryBase ()

virtual void	PrintSelf (std::ostream &os, Indent indent) const override

void	RegisterOverride (const char classOverride, const char overrideClassName, const char description, bool enableFlag, CreateObjectFunctionBase createFunction)

virtual	~ObjectFactoryBase ()

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

virtual void	SetTimeStamp (const TimeStamp &time)

virtual	~Object ()

Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const

	LightObject ()

virtual void	PrintHeader (std::ostream &os, Indent indent) const

virtual void	PrintTrailer (std::ostream &os, Indent indent) const

virtual	~LightObject ()

Private Member Functions
	ObjectFactoryBase (const Self &) ITK_DELETE_FUNCTION

void	operator= (const Self &) ITK_DELETE_FUNCTION

Static Private Member Functions
static void	DeleteNonInternalFactory (ObjectFactoryBase *)

static void	Initialize ()

static void	InitializeFactoryList ()

static void	LoadDynamicFactories ()

static void	LoadLibrariesInPath (const char *)

static void	RegisterInternal ()

Private Attributes
unsigned long	m_LibraryDate

void *	m_LibraryHandle

std::string	m_LibraryPath

OverRideMap *	m_OverrideMap

Static Private Attributes
static bool	m_StrictVersionChecking

Additional Inherited Members
Protected Attributes inherited from itk::LightObject
AtomicInt< int >	m_ReferenceCount

Member Typedef Documentation

typedef SmartPointer< const Self > itk::ObjectFactoryBase::ConstPointer

Definition at line 65 of file itkObjectFactoryBase.h.

typedef SmartPointer< Self > itk::ObjectFactoryBase::Pointer

Definition at line 64 of file itkObjectFactoryBase.h.

typedef ObjectFactoryBase itk::ObjectFactoryBase::Self

Standard class typedefs.

Definition at line 62 of file itkObjectFactoryBase.h.

typedef Object itk::ObjectFactoryBase::Superclass

Definition at line 63 of file itkObjectFactoryBase.h.

Member Enumeration Documentation

enum itk::ObjectFactoryBase::InsertionPositionType

Position at which the new factory will be registered in the internal factory container.

Enumerator
INSERT_AT_FRONT
INSERT_AT_BACK
INSERT_AT_POSITION

Definition at line 99 of file itkObjectFactoryBase.h.

Constructor & Destructor Documentation

itk::ObjectFactoryBase::ObjectFactoryBase ( )

protected

virtual itk::ObjectFactoryBase::~ObjectFactoryBase ( )

protectedvirtual

itk::ObjectFactoryBase::ObjectFactoryBase ( const Self & )

private

Member Function Documentation

static std::list< LightObject::Pointer > itk::ObjectFactoryBase::CreateAllInstance ( const char * itkclassname )

static

Create and return all possible instances of the named itk object. Each loaded ObjectFactoryBase will be asked in the order the factory was in the ITK_AUTOLOAD_PATH. All created objects will be returned in the list.

Examples:: SphinxExamples/src/IO/ImageBase/RegisterIOFactories/Code.cxx.

virtual std::list< LightObject::Pointer > itk::ObjectFactoryBase::CreateAllObject ( const char * itkclassname )

protectedvirtual

This method creates all the objects with the class overide of itkclass name, which are provide by this object

static LightObject::Pointer itk::ObjectFactoryBase::CreateInstance ( const char * itkclassname )

static

Create and return an instance of the named itk object. Each loaded ObjectFactoryBase will be asked in the order the factory was in the ITK_AUTOLOAD_PATH. After the first factory returns the object no other factories are asked.

Referenced by itk::ObjectFactory< T >::Create().

virtual LightObject::Pointer itk::ObjectFactoryBase::CreateObject ( const char * itkclassname )

protectedvirtual

This method is provided by sub-classes of ObjectFactoryBase. It should create the named itk object or return 0 if that object is not supported by the factory implementation.

static void itk::ObjectFactoryBase::DeleteNonInternalFactory ( ObjectFactoryBase * )

staticprivate

virtual void itk::ObjectFactoryBase::Disable ( const char * className )

virtual

Set all enable flags for the given class to 0. This will mean that the factory will stop producing class with the given name.

virtual std::list< std::string > itk::ObjectFactoryBase::GetClassOverrideDescriptions ( )

virtual

Return a list of descriptions for class overrides.

virtual std::list< std::string > itk::ObjectFactoryBase::GetClassOverrideNames ( )

virtual

Return a list of classes that this factory overrides.

virtual std::list< std::string > itk::ObjectFactoryBase::GetClassOverrideWithNames ( )

virtual

Return a list of the names of classes that override classes.

virtual const char* itk::ObjectFactoryBase::GetDescription ( void ) const

pure virtual

Return a descriptive string describing the factory.

virtual bool itk::ObjectFactoryBase::GetEnableFlag	(	const char *	className,
		const char *	subclassName
	)

virtual

Get the Enable flag for the specific override of className.

virtual std::list< bool > itk::ObjectFactoryBase::GetEnableFlags ( )

virtual

Return a list of enable flags.

virtual const char* itk::ObjectFactoryBase::GetITKSourceVersion ( void ) const

pure virtual

All sub-classes of ObjectFactoryBase should must return the version of ITK they were built with. This should be implemented with the macro ITK_SOURCE_VERSION and NOT a call to Version::GetITKSourceVersion. As the version needs to be compiled into the file as a string constant. This is critical to determine possible incompatible dynamic factory loads.

const char* itk::ObjectFactoryBase::GetLibraryPath ( )

This returns the path to a dynamically loaded factory.

virtual const char* itk::ObjectFactoryBase::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::Object.

static std::list< ObjectFactoryBase * > itk::ObjectFactoryBase::GetRegisteredFactories ( )

static

Return the list of all registered factories. This is NOT a copy, do not remove items from this list!

Examples:: Examples/IO/IOFactoryRegistration.cxx, and Examples/IO/IOPlugin.cxx.

static bool itk::ObjectFactoryBase::GetStrictVersionChecking ( )

static

Require the ITK version of this application to exactly match the ITK version used to compile a dynamic library. When this is set to true, if the versions do not match, an exception will be thrown. When this is false, and the versions do not match, only a warning message is printed out in the console, and the factory is still registered.

static void itk::ObjectFactoryBase::Initialize ( )

staticprivate

Initialize the static members of ObjectFactoryBase. RegisterInternal() and InitializeFactoryList() are called here.

static void itk::ObjectFactoryBase::InitializeFactoryList ( )

staticprivate

Initialize the static list of Factories.

static void itk::ObjectFactoryBase::LoadDynamicFactories ( )

staticprivate

Load dynamic factories from the ITK_AUTOLOAD_PATH

static void itk::ObjectFactoryBase::LoadLibrariesInPath ( const char * )

staticprivate

Load all dynamic libraries in the given path

void itk::ObjectFactoryBase::operator= ( const Self & )

private

virtual void itk::ObjectFactoryBase::PrintSelf	(	std::ostream &	os,
		Indent	indent
	)		const

overrideprotectedvirtual

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from itk::Object.

static bool itk::ObjectFactoryBase::RegisterFactory	(	ObjectFactoryBase *	,
		InsertionPositionType	where = `INSERT_AT_BACK`,
		vcl_size_t	position = `0`
	)

static

Register a factory so it can be used to create itk objects.

When INSERT_AT_POSITION is selected, a third argument must be provided
with the actual integer number of the intended position. The position
number must be in the range [0, numberOfRegisteredFactories-1].

Usage should be any of the following:

itk::ObjectFactoryBase::RegisterFactory( newFactory1 ); // at back
itk::ObjectFactoryBase::RegisterFactory( newFactory2, INSERT_AT_FRONT );
itk::ObjectFactoryBase::RegisterFactory( newFactory3, INSERT_AT_BACK );
itk::ObjectFactoryBase::RegisterFactory( newFactory4, INSERT_AT_POSITION, 5 );

If the position value is out of range, an exception will be
thrown.
Returns true if the factory was successfully registered.
Returns false if factory is already loaded.

static void itk::ObjectFactoryBase::RegisterFactoryInternal ( ObjectFactoryBase * )

static

Register a factory so it can be used to create itk objects. This method is intended to be called only for built-in default factories, not for loadable factories.

Factories that are registered with this method will be regisistered after ReHash.

static void itk::ObjectFactoryBase::RegisterInternal ( )

staticprivate

Register default factories which are not loaded at run time.

void itk::ObjectFactoryBase::RegisterOverride	(	const char *	classOverride,
		const char *	overrideClassName,
		const char *	description,
		bool	enableFlag,
		CreateObjectFunctionBase *	createFunction
	)

protected

Register object creation information with the factory.

Referenced by itk::SpatialObjectFactoryBase::RegisterSpatialObject().

static void itk::ObjectFactoryBase::ReHash ( )

static

Re-check the ITK_AUTOLOAD_PATH for new factory libraries. This calls UnRegisterAll before re-loading.

Examples:: Examples/IO/IOPlugin.cxx.

virtual void itk::ObjectFactoryBase::SetEnableFlag	(	bool	flag,
		const char *	className,
		const char *	subclassName
	)

virtual

Set the Enable flag for the specific override of className.

static void itk::ObjectFactoryBase::SetStrictVersionChecking ( bool )

static

Require the ITK version of this application to exactly match the ITK version used to compile a dynamic library. When this is set to true, if the versions do not match, an exception will be thrown. When this is false, and the versions do not match, only a warning message is printed out in the console, and the factory is still registered.

static void itk::ObjectFactoryBase::StrictVersionCheckingOff ( )

static

Require the ITK version of this application to exactly match the ITK version used to compile a dynamic library. When this is set to true, if the versions do not match, an exception will be thrown. When this is false, and the versions do not match, only a warning message is printed out in the console, and the factory is still registered.

static void itk::ObjectFactoryBase::StrictVersionCheckingOn ( )

static

Require the ITK version of this application to exactly match the ITK version used to compile a dynamic library. When this is set to true, if the versions do not match, an exception will be thrown. When this is false, and the versions do not match, only a warning message is printed out in the console, and the factory is still registered.

static void itk::ObjectFactoryBase::UnRegisterAllFactories ( )

static

Unregister all factories.

static void itk::ObjectFactoryBase::UnRegisterFactory ( ObjectFactoryBase * )

static

Remove a factory from the list of registered factories.

Member Data Documentation

unsigned long itk::ObjectFactoryBase::m_LibraryDate

private

Definition at line 250 of file itkObjectFactoryBase.h.

void* itk::ObjectFactoryBase::m_LibraryHandle

private

Member variables for a factory set by the base class at load or register time

Definition at line 249 of file itkObjectFactoryBase.h.

std::string itk::ObjectFactoryBase::m_LibraryPath

private

Definition at line 251 of file itkObjectFactoryBase.h.

OverRideMap* itk::ObjectFactoryBase::m_OverrideMap

private

Definition at line 224 of file itkObjectFactoryBase.h.

bool itk::ObjectFactoryBase::m_StrictVersionChecking

staticprivate

Definition at line 253 of file itkObjectFactoryBase.h.

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

itkObjectFactoryBase.h

Detailed Description

Classes

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation