IXTCAccess Class Reference

Provides an interface to access Extension Channels. More...

#include <object.h>

Inheritance diagram for IXTCAccess:

Public Member Functions
virtual Interface_ID	GetID ()
	This method returns the IXTCAccess interface ID. More...
virtual LifetimeType	LifetimeControl ()
	This method allows inquiries into the actual lifetime policy of a client and provide a server-controlled delete notify callback. More...
virtual void	AddXTCObject (XTCObject *pObj, int priority=0, int branchID=-1)=0
	This method adds an extension object into the pipeline. More...
virtual int	NumXTCObjects ()=0
	This method returns the number of extension objects. More...
virtual XTCObject *	GetXTCObject (int index)=0
	This method returns the I-th extension object. More...
virtual void	RemoveXTCObject (int index)=0
	This method allows you to remove the I-th extension object. More...
virtual void	SetXTCObjectPriority (int index, int priority)=0
	This method allows you to set the priority for the I-th extension object. More...
virtual int	GetXTCObjectPriority (int index)=0
	This method returns the priority for the I-th extension object. More...
virtual void	SetXTCObjectBranchID (int index, int branchID)=0
	This method allows you to set the branch identifier for the I-th extension object. More...
virtual int	GetXTCObjectBranchID (int index)=0
	This method returns the branch identifier for the I-th extension object. More...
virtual void	MergeAdditionalChannels (Object *from, int branchID)=0
	This method has to be called whenever the CompoundObject updates a branch (calling Eval on it). More...
virtual void	BranchDeleted (int branchID, bool reorderChannels)=0
	This method has to be called on the CompoundObject, so it can delete the XTCObjects for the specific branch. More...
virtual void	CopyAdditionalChannels (Object *from, bool deleteOld=true, bool bShallowCopy=false)=0
	This method copies all extension objects from the "from" objects into the current object. More...
virtual void	DeleteAllAdditionalChannels ()=0
	This method allows you to delete all additional channels. More...
Public Member Functions inherited from BaseInterface
virtual UtilExport	~BaseInterface ()
	Destructor. More...
UtilExport BaseInterface *	GetInterface (Interface_ID id)
virtual bool	RegisterNotifyCallback (InterfaceNotifyCallback *incb)
virtual void	UnRegisterNotifyCallback (InterfaceNotifyCallback *incb)
virtual BaseInterface *	AcquireInterface ()
virtual void	ReleaseInterface ()
virtual void	DeleteInterface ()
virtual BaseInterface *	CloneInterface (void *remapDir=NULL)
Public Member Functions inherited from InterfaceServer
virtual UtilExport	~InterfaceServer ()
	Destructor. More...
template<class InterfaceType >
InterfaceType *	GetTypedInterface ()

Additional Inherited Members
Public Types inherited from BaseInterface
enum	LifetimeType { noRelease , immediateRelease , wantsRelease , serverControlled }
Static Public Member Functions inherited from MaxHeapOperators
static UtilExport void *	operator new (size_t size)
	Standard new operator used to allocate objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e)
	Standard new operator used to allocate objects if there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate objects that takes the type of memory, filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new (size_t size, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate arrays of objects. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void *	operator new[] (size_t size, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...
static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...
static UtilExport void	operator delete (void *ptr)
	Standard delete operator used to deallocate an object If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an object If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an object that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete (void *ptr, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, int block_type, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, const char *filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...
static UtilExport void	operator delete[] (void *ptr, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...
static UtilExport void *	operator new (size_t size, void *placement_ptr)
	Placement new operator. More...
static UtilExport void	operator delete (void *ptr, void *placement_ptr)
	Placement delete operator. More...
static UtilExport void *	aligned_malloc (size_t size, size_t alignment)
	Allocates memory on a specified alignment boundary. More...
static UtilExport void *	aligned_realloc (void *ptr, size_t size, size_t alignment)
	Reallocates memory on a specified alignment boundary. More...
static UtilExport void	aligned_free (void *ptr)
	Frees a block of memory that was allocated with aligned_malloc/aligned_realloc. More...

Detailed Description

Provides an interface to access Extension Channels.

See also

Class Object, Class XTCObject

Member Function Documentation

GetID()

virtual Interface_ID GetID ( )

inlinevirtual

This method returns the IXTCAccess interface ID.

Reimplemented from BaseInterface.

{ return IXTCACCESS_INTERFACE_ID; }

LifetimeControl()

virtual LifetimeType LifetimeControl ( )

inlinevirtual

This method allows inquiries into the actual lifetime policy of a client and provide a server-controlled delete notify callback.

Returns

One of the following LifetimeTypes:

• noRelease Do not call release, use interface as long as you like.
• immediateRelease The interface is only good for one calls. The release is implied so a call to release is not required.
• wantsRelease The clients are controlling the lifetime, so the interface needs a Release() when the client has finished. This is the default.
• serverControlled The server controls the lifetime and will use the InterfaceNotifyCallback to inform the code when it is gone.

Reimplemented from BaseInterface.

{ return noRelease; }

AddXTCObject()

virtual void AddXTCObject ( XTCObject *  pObj, int  priority = 0, int  branchID = -1  )

pure virtual

This method adds an extension object into the pipeline.

Parameters

pObj	The extension object you wish to add.
priority	The priority to set.
branchID	The branch identifier to set.

NumXTCObjects()

virtual int NumXTCObjects ( )

pure virtual

This method returns the number of extension objects.

GetXTCObject()

virtual XTCObject* GetXTCObject ( int  index )

pure virtual

This method returns the I-th extension object.

Parameters

index

The index of the extension object to return.

RemoveXTCObject()

virtual void RemoveXTCObject ( int  index )

pure virtual

This method allows you to remove the I-th extension object.

Parameters

index

The index of the extension object you wish to remove.

SetXTCObjectPriority()

virtual void SetXTCObjectPriority ( int  index, int  priority  )

pure virtual

This method allows you to set the priority for the I-th extension object.

Parameters

index	The index of the extension object for which to set the priority.
priority	The priority to set.

GetXTCObjectPriority()

virtual int GetXTCObjectPriority ( int  index )

pure virtual

This method returns the priority for the I-th extension object.

Parameters

index

The index of the extension object.

SetXTCObjectBranchID()

virtual void SetXTCObjectBranchID ( int  index, int  branchID  )

pure virtual

This method allows you to set the branch identifier for the I-th extension object.

Parameters

index	The index of the extension object.
branchID	The branch identifier to set.

GetXTCObjectBranchID()

virtual int GetXTCObjectBranchID ( int  index )

pure virtual

This method returns the branch identifier for the I-th extension object.

Parameters

index

The index of the extension object.

MergeAdditionalChannels()

virtual void MergeAdditionalChannels ( Object *  from, int  branchID  )

pure virtual

This method has to be called whenever the CompoundObject updates a branch (calling Eval on it).

Object *from is the object returned from Eval (os.obj); branchID is an int, that specifies that branch. The extension channel will get a callback to RemoveXTCObjectOnMergeBranches() and MergeXTCObject(). By default it returns true to RemoveXTCObjectOnMergeBranches(), which means, that the existing XTCObjects with that branchID will be deleted. The method MergeXTCObject() simply copies the XTCObjects from the incoming branch into the compound object.

Parameters

from	The object from which to merge additional channels
branchID	The branch identifier.

BranchDeleted()

virtual void BranchDeleted ( int  branchID, bool  reorderChannels  )

pure virtual

This method has to be called on the CompoundObject, so it can delete the XTCObjects for the specific branch.

The XTCObject will have again the final decision if the XTCObject gets really deleted or not in a callback to RemoveXTCObjectOnBranchDeleted(), which will return true, if the XTCObject should be removed.

Parameters

branchID	The branch identifier.
reorderChannels	TRUE to reorder the channels, otherwise FALSE.

CopyAdditionalChannels()

virtual void CopyAdditionalChannels ( Object *  from, bool  deleteOld = true, bool  bShallowCopy = false  )

pure virtual

This method copies all extension objects from the "from" objects into the current object.

In case deleteOld is false, the objects will be appended. In case it is true, the old XTCObjects will be deleted.

Parameters

from	The object to copy from.
deleteOld	TRUE to delete the old channel, FALSE to append the channels.
bShallowCopy	TRUE to create a shallow copy, FALSE to create a deep copy.

DeleteAllAdditionalChannels()

virtual void DeleteAllAdditionalChannels ( )

pure virtual

This method allows you to delete all additional channels.