In This Package:

IFactory Class Reference

The IFactory is the interface used to create contrete instances of Objectes. More...

#include <GaudiKernel/IFactory.h>

Inheritance diagram for IFactory:

[legend]Collaboration diagram for IFactory:[legend]List of all members.

Public Types
	SUCCESS = 1
	Normal successful completion.
	NO_INTERFACE
	Requested interface is not available.
	VERSMISMATCH
	Requested interface version is incompatible.
	LAST_ERROR
	Last error.
enum	Status { SUCCESS = 1, NO_INTERFACE, VERSMISMATCH, LAST_ERROR }
	Return status. More...
Public Member Functions
virtual IInterface *	instantiate (IInterface *parent) const =0
	Instantiate an instance of a Gaudi class.
virtual unsigned long	addRef () const =0
virtual unsigned long	release () const =0
virtual unsigned long	addRef ()=0
	Re-declaring these here avoids a compiler warning about hidden functions.
virtual unsigned long	release ()=0
	Release Interface instance.
virtual const std::string &	ident () const =0
virtual StatusCode	queryInterface (const InterfaceID &riid, void **ppvInterface)=0
	Query interfaces of Interface.
Static Public Member Functions
static const InterfaceID &	interfaceID ()
	Retrieve interface ID.

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Detailed Description

The IFactory is the interface used to create contrete instances of Objectes.

It can be used to create Services, Algorithms, Converters, ...

Author:

Pere Mato

Definition at line 21 of file IFactory.h.

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Member Enumeration Documentation

enum IInterface::Status [inherited]

Return status.

Enumerator:

SUCCESS	Normal successful completion.
NO_INTERFACE	Requested interface is not available.
VERSMISMATCH	Requested interface version is incompatible.
LAST_ERROR	Last error.

Reimplemented in IConversionSvc, IConverter, and IDataProviderSvc.

Definition at line 113 of file IInterface.h.

                {
    SUCCESS = 1,
    NO_INTERFACE,
    VERSMISMATCH,
    LAST_ERROR
  };

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Member Function Documentation

static const InterfaceID& IFactory::interfaceID

(

)

[inline, static]

Retrieve interface ID.

Reimplemented from IInterface.

Definition at line 24 of file IFactory.h.

{ return IID_IFactory; }

virtual IInterface* IFactory::instantiate

(

IInterface *

parent

)

const [pure virtual]

Instantiate an instance of a Gaudi class.

virtual unsigned long IFactory::addRef

(

)

const [pure virtual]

virtual unsigned long IFactory::release

(

)

const [pure virtual]

virtual unsigned long IFactory::addRef

(

)

[pure virtual]

Re-declaring these here avoids a compiler warning about hidden functions.

Refer to ARM Page 210. Increment the reference count of Interface instance

Implements IInterface.

virtual unsigned long IFactory::release

(

)

[pure virtual]

Release Interface instance.

Implements IInterface.

virtual const std::string& IFactory::ident

(

)

const [pure virtual]

virtual StatusCode IInterface::queryInterface	(	const InterfaceID &	riid,
		void **	ppvInterface
	)			[pure virtual, inherited]

Query interfaces of Interface.

Parameters:

	riid	ID of Interface to be retrieved
	ppvInterface	Pointer to Location for interface pointer

Implemented in Algorithm, AlgTool, Auditor, ConversionSvc, Converter, DataSvc, EventSelectorDataStream, MinimalEventLoopMgr, PropertyMgr, SelectStatement, and Service.

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

• /home/dayabay/installs/trunk_2011_04_11_opt/NuWa-trunk/gaudi/GaudiKernel/GaudiKernel/IFactory.h

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