ACE_Command_Callback3
Defines a class template that allows us to invoke a gof command style callback to an object without knowing anything about the object except its type.
Usage
#include <ace/Functor_T.h>
template<class RECEIVER, class ACTION>
class ACE_Command_Callback : public ACE_Command_Base
{
public:
ACE_Command_Callback (RECEIVER &recvr, ACTION action);
virtual ~ACE_Command_Callback (void);
virtual int execute (void *arg = 0);
private:
RECEIVER &receiver_;
ACTION action_;
};
Overview
Templatized classes for implementing function objects that are used in various places in ACE. There are currently two major categories of function objects in ACE: GOF Command Pattern objects, and STL-style functors for comparison of container elements. The command objects are invoked via an execute method, while the STL-style functors are invoked via an operator() method.
Public members
ACE_Command_Callback (RECEIVER &recvr, ACTION action);
Constructor: sets the receiver_ of the Command to recvr, and the action_ of the Command to action.
virtual ~ACE_Command_Callback (void);
Virtual destructor.
virtual int execute (void *arg = 0);
Invokes the method action_ from the object receiver_.
Private members
RECEIVER &receiver_;
Object where the method resides.
ACTION action_;
Method that is going to be invoked.
Library
ace