TLibAssoc Class Reference

#include <baliba.h>

class TLibAssoc : public TLibAssocBase

Inherits from

TLibAssoc
- TLibAssocBase

Public Member Functions
	TLibAssoc()
	TLibAssoc(const RLibrary &, T *)
T *	Ptr()
const T *	PtrC()
void	Set(const RLibrary &, T *)
void	Unload()
	operator T *()
	operator TCleanupItem()
	operator TLibAssoc *()
	operator const T *()
T *	operator->()
const T *	operator->()

Inherited Attributes
	TLibAssocBase::iPtr

Inherited Functions
	TLibAssocBase::DoUnload(TAny *)
	TLibAssocBase::IsNull()const
	TLibAssocBase::Set(const RLibrary &,TAny *)
	TLibAssocBase::TLibAssocBase()
	TLibAssocBase::TLibAssocBase(const RLibrary &,TAny *)

Detailed Description

Associates a dynamically loadable DLL and an instance of a class that, typically, will have been created using the ordinal 1 function of that DLL.

An object of this type is useful when cleanup behaviour requires that a class instance be deleted and the associated DLL be closed.

The DLL is expected to be already open when the TLibAssoc object is created.

Constructor & Destructor Documentation

TLibAssoc ( )

TLibAssoc

(

)

[inline]

Default constructor.

An association between a DLL and a class instance can be made after construction using the Set() function.

TLibAssoc ( const RLibrary &, T * )

TLibAssoc	(	const RLibrary &	aLib,
		T *	aClass
	)	[inline]

Constructs the object taking the specified DLL and an instance of the specified class.

Parameters
aLib	A reference to a DLL that has already been opened.
aClass	A pointer to an object to be associated with the DLL. Typically, this object will have been created using the ordinal 1 function from that DLL.

Member Function Documentation

Ptr ( )

T *

Ptr

(

)

[inline]

Gets a pointer to the class instance.

Return Value: A pointer to the class instance.

PtrC ( )

const T *

PtrC

(

)

const [inline]

Gets a pointer to the const class instance.

Return Value: A pointer to the const class instance.

Set ( const RLibrary &, T * )

void	Set	(	const RLibrary &	aLib,
			T *	aClass
		)	[inline]

Makes an association between the specified DLL and an instance of the specified class.

Parameters
aLib	A reference to a DLL that has already been opened.
aClass	A pointer to an object to be associated with the DLL. Typically, this object will have been created using the ordinal 1 function from that DLL.

Unload ( )

void

Unload

(

)

[inline]

Deletes the class instance and calls Close() on the associated DLL.

operator T * ( )

operator T *

(

)

[inline]

Conversion operator.

Invoked by the compiler when a TLibAssoc<T> type is passed to a function that is prototyped to take a T* type.

operator TCleanupItem ( )

operator TCleanupItem

(

)

[inline]

The TCleanupItem conversion operator.

Invoked by the compiler when a TLibAssoc<T> type is passed to a function that is prototyped to take a TCleanupItem type.

The most common usage is to put a cleanup item onto the cleanup stack using CleanupStack::PushL(). The cleanup operation is represented by the private static function Cleanup().

For example, if we declare

TLibAssoc<A> a;

then we can simply put a cleanup item onto the cleanup stack by calling

CleanupStack::PushL(a);

operator TLibAssoc * ( )

operator TLibAssoc *

(

)

operator const T * ( )

operator const T *

(

)

const [inline]

Const conversion operator.

Invoked by the compiler when a TLibAssoc<T> type is passed to a function that is prototyped to take a const T* type.

operator-> ( )

T *

operator->

(

)

[inline]

Dereferencing operator.

Return Value: A pointer to the class instance.

operator-> ( )

const T *

operator->

(

)

const [inline]

Const dereferencing operator.

Return Value: A pointer to the const class instance.