Abstract interface for a service or tool implementing a read access to files. More...

Inheritance diagram for IFileAccess:

Collaboration diagram for IFileAccess:

Public Member Functions
	DeclareInterfaceID (IFileAccess, 2, 0)
	InterfaceID.

virtual	~IFileAccess ()

virtual std::auto_ptr < std::istream >	open (const std::string &url)=0
	Find the URL and returns an auto_ptr to an input stream interface of an object that can be used to read from the file the URL is pointing to.

virtual const std::vector < std::string > &	protocols () const =0
	Protocols supported by the instance.

Public Member Functions inherited from IInterface
virtual void *	i_cast (const InterfaceID &) const =0
	main cast function

virtual std::vector< std::string >	getInterfaceNames () const =0
	Returns a vector of strings containing the names of all the implemented interfaces.

virtual unsigned long	addRef ()=0
	Increment the reference count of Interface instance.

virtual unsigned long	release ()=0
	Release Interface instance.

virtual unsigned long	refCount () const =0
	Current reference count.

virtual StatusCode	queryInterface (const InterfaceID &ti, void **pp)=0
	Set the void** to the pointer to the requested interface of the instance.

virtual	~IInterface ()
	Virtual destructor.

Additional Inherited Members
Public Types inherited from IInterface
enum	Status { SUCCESS = 1, NO_INTERFACE, VERSMISMATCH, LAST_ERROR }
	Return status. More...

typedef Gaudi::InterfaceId < IInterface, 0, 0 >	iid
	Interface ID.

typedef mpl::set1< iid >	ext_iids
	Extra interfaces.

Static Public Member Functions inherited from IInterface
static const InterfaceID &	interfaceID ()
	Return an instance of InterfaceID identifying the interface.

Detailed Description

Abstract interface for a service or tool implementing a read access to files.

Definition at line 19 of file IFileAccess.h.

Constructor & Destructor Documentation

IFileAccess::~IFileAccess ( )

virtual

Definition at line 11 of file VirtualDestructors.cpp.

{}

IFileAccess::DeclareInterfaceID	(	IFileAccess	,
		2	,
		0
	)

virtual std::auto_ptr<std::istream> IFileAccess::open ( const std::string & url )

pure virtual

Find the URL and returns an auto_ptr to an input stream interface of an object that can be used to read from the file the URL is pointing to.

Returns an empty pointer if the URL cannot be resolved.

Implemented in VFSSvc, and FileReadTool.

virtual const std::vector<std::string>& IFileAccess::protocols ( ) const

pure virtual

Protocols supported by the instance.

Implemented in VFSSvc, and FileReadTool.

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

/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v24r2/GaudiKernel/GaudiKernel/IFileAccess.h
/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v24r2/GaudiKernel/src/Lib/VirtualDestructors.cpp