Interface variable of abstract type VarType managing callbacks for reading and writing. More...

#include <If_Variable.h>

Inheritance diagram for If_Variable< VarType >:

Public Member Functions
virtual	~If_Variable ()
	Destructor.

virtual VarType	get () const
	Get value of interface variable.

virtual void	set (VarType value)
	Set value of interface variable.

Public Member Functions inherited from If_Element
	If_Element (const char *ifName)
	constructor

virtual	~If_Element ()
	destructor

const char *	ifName ()
	get interface name

Public Member Functions inherited from If_ListElement
	If_ListElement ()
	constructor

virtual	~If_ListElement ()
	destructor

Protected Member Functions
	If_Variable (const char ifName, If_GetIf< VarType > getCb, If_SetIf< VarType > *setCb=NULL)
	Constructor taking callback methods as arguments. More...

int	invoke (Tcl_Interp interp, int objc, Tcl_Obj CONST objv[])
	Process command invokation.

virtual int	getTclObj (Tcl_Interp *)=0
	Get the value of the interface variable and create a Tcl object containing it. More...

virtual int	setTclObj (Tcl_Interp , Tcl_Obj CONST objPtr)=0
	Convert Tcl object to internal type and set the value of the interface variable. More...

Protected Attributes
If_GetIf< VarType > *	_getCb
	callback for reading

If_SetIf< VarType > *	_setCb
	callback for writing

Detailed Description

template<class VarType>
class If_Variable< VarType >

Interface variable of abstract type VarType managing callbacks for reading and writing.

A derived class should pass dynamically created callback objects to the constructor. In order to invoke the callbacks, the methods get and set should be called from within the implementations for getTclObj and setTclObj, respectively (as defined by If_VariableCmd). The destructor of this base class will delete the callback objects.