Arp::Base::Core::event< Args > Class Template Reference

Use this class to register and invoke several delegates (function pointer in OOP design). More...

#include <event.hxx>

Public Member Functions
	event (void)
	Constructs a event instance. More...
event &	operator+= (delegate_type &&rhs)
	Adds a delegate to this event. More...
event &	operator+= (const delegate_type &rhs)
	Adds a delegate to this event. More...
event &	operator-= (const delegate_type &rhs)
	Removes a delegate from this event. More...
void	operator() (Args... args) const
	Fires this event instance. More...
bool	is_empty (void) const
	Checks if this event has any delegates to be invoked. More...

Detailed Description

template<class ... Args>
class Arp::Base::Core::event< Args >

Use this class to register and invoke several delegates (function pointer in OOP design).

The type of this generic event class depends only on the signature of the delegates to be invoked, but not on the type of the objects on which the member function pointers of the delegates are invoked.

This class is leaned on the event mechanism of .NET.

See also

delegate

A delegate is a function pointer (callback) in OOP design, which only depends on the signature of the (member) function pointer but not on the type of the object on which the member function pointer is invoked.

Constructor & Destructor Documentation

event()

template<class ... Args>

Arp::Base::Core::event< Args >::event ( void  )

inlinedefault

Constructs a event instance.

Template Parameters

Args	The argument types of this event.

Member Function Documentation

is_empty()

template<class ... Args>

bool Arp::Base::Core::event< Args >::is_empty ( void  ) const

inline

Checks if this event has any delegates to be invoked.

Returns

true if this event has any delegates to be invoked, otherwise false.

Template Parameters

Args	The argument types of this event.

operator()()

template<class ... Args>

void Arp::Base::Core::event< Args >::operator() ( Args...  args ) const

inline

Fires this event instance.

Parameters

args	The arguments passed to the invoked delegates.

All added delegates are invoked in reversed insertion order by passing the arguments accordingly. The invocation in reversed order ensures backward compatibility.

Template Parameters

Args	The argument types of this event.

operator+=() [1/2]

template<class ... Args>

event< Args... > & Arp::Base::Core::event< Args >::operator+= ( const delegate_type &  rhs )

inline

Adds a delegate to this event.

Parameters

rhs	The delegate to add to this event.

Returns

This instance as reference.

Template Parameters

Args	The argument types of this event.

operator+=() [2/2]

template<class ... Args>

event< Args... > & Arp::Base::Core::event< Args >::operator+= ( delegate_type &&  rhs )

inline

Adds a delegate to this event.

Parameters

rhs	The delegate to add to this event.

Returns

This instance as reference.

Template Parameters

Args	The argument types of this event.

operator-=()

template<class ... Args>

event< Args... > & Arp::Base::Core::event< Args >::operator-= ( const delegate_type &  rhs )

inline

Removes a delegate from this event.

Parameters

rhs	The delegate to remove from this event.

Returns

This instance as reference.

Template Parameters

Args	The argument types of this event.

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

• Arp/Base/Core/event.hxx
• Arp/Base/Core/Detail/event.ipp