mi::base::Interface_implement_2< I1, I2 > Class Template Reference

Mixin class template for deriving interface implementations from two interfaces. More...

Inherits I1, and I2.

Public Member Functions
	Interface_implement_2 (Uint32 initial=1)
	Constructor. More...
	Interface_implement_2 (const Interface_implement_2< I1, I2 > &other)
	Copy constructor. More...
Interface_implement_2< I1, I2 > &	operator= (const Interface_implement_2< I1, I2 > &other)
	Assignment operator. More...
virtual Uint32	retain () const
	Increments the reference count. More...
virtual Uint32	release () const
	Decrements the reference count. More...
virtual const IInterface *	get_interface (const Uuid &interface_id) const
	Acquires a const interface. More...
virtual IInterface *	get_interface (const Uuid &interface_id)
	Acquires a mutable interface. More...
Uuid	get_iid () const
	Returns the interface ID of the most derived interface. More...

Detailed Description

template<class I1, class I2>
class mi::base::Interface_implement_2< I1, I2 >

Mixin class template for deriving interface implementations from two interfaces.

mi::base::Interface_implement_2 is a mixin class template that allows you to derive interface class implementations easily. It provides you with the full implementation of reference counting and the mi::base::IInterface::get_interface(const Uuid&) method. It requires that you used interfaces derived from the corresponding mixin class template mi::base::Interface_declare.

mi::base::Interface_implement is derived from the interface I1 and I2. In case of ambiguities, interface I1 is preferred.

Template Parameters

I1	First interface class that this class implements.
I2	Second interface class that this class implements.

Include File:

#include <mi/base/interface_implement.h>

Constructor & Destructor Documentation

template<class I1, class I2>

mi::base::Interface_implement_2< I1, I2 >::Interface_implement_2 ( Uint32  initial = 1)

inline

Constructor.

Parameters

initial

The initial reference count (defaults to 1).

template<class I1, class I2>

mi::base::Interface_implement_2< I1, I2 >::Interface_implement_2 ( const Interface_implement_2< I1, I2 > &  other)

inline

Copy constructor.

Initializes the reference count to 1.

Member Function Documentation

template<class I1, class I2>

Uuid mi::base::Interface_implement_2< I1, I2 >::get_iid ( ) const

inline

Returns the interface ID of the most derived interface.

template<class I1, class I2>

virtual const IInterface* mi::base::Interface_implement_2< I1, I2 >::get_interface ( const Uuid &  interface_id) const

inlinevirtual

Acquires a const interface.

If this interface is derived from or is the interface with the passed interface_id, then return a non-NULL const mi::base::IInterface* that can be casted via static_cast to an interface pointer of the interface type corresponding to the passed interface_id. Otherwise return NULL.

In the case of a non-NULL return value, the caller receives ownership of the new interface pointer, whose reference count has been retained once. The caller must release the returned interface pointer at the end to prevent a memory leak.

template<class I1, class I2>

virtual IInterface* mi::base::Interface_implement_2< I1, I2 >::get_interface ( const Uuid &  interface_id)

inlinevirtual

Acquires a mutable interface.

If this interface is derived from or is the interface with the passed interface_id, then return a non-NULL mi::base::IInterface* that can be casted via static_cast to an interface pointer of the interface type corresponding to the passed interface_id. Otherwise return NULL.

In the case of a non-NULL return value, the caller receives ownership of the new interface pointer, whose reference count has been retained once. The caller must release the returned interface pointer at the end to prevent a memory leak.

template<class I1, class I2>

Interface_implement_2<I1,I2>& mi::base::Interface_implement_2< I1, I2 >::operator= ( const Interface_implement_2< I1, I2 > &  other)

inline

Assignment operator.

The reference count of *this and other remain unchanged.

template<class I1, class I2>

virtual Uint32 mi::base::Interface_implement_2< I1, I2 >::release ( ) const

inlinevirtual

Decrements the reference count.

Decrements the reference count of the object referenced through this interface and returns the new reference count. If the reference count dropped to zero, the object will be deleted. The operation is thread-safe.

template<class I1, class I2>

virtual Uint32 mi::base::Interface_implement_2< I1, I2 >::retain ( ) const

inlinevirtual

Increments the reference count.

Increments the reference count of the object referenced through this interface and returns the new reference count. The operation is thread-safe.