ObservableValue< T > Class Template Reference

observable and assignable proxy to concrete value More...

#include <ql/utilities/observablevalue.hpp>

Public Member Functions
	ObservableValue (T &&)
	ObservableValue (const T &)
	ObservableValue (const ObservableValue< T > &)

controlled assignment
ObservableValue< T > &	operator= (T &&)
ObservableValue< T > &	operator= (const T &)
ObservableValue< T > &	operator= (const ObservableValue< T > &)
	operator T () const
	implicit conversion
	operator ext::shared_ptr< Observable > () const
const T &	value () const
	explicit inspector

Detailed Description

template<class T>
class QuantLib::ObservableValue< T >

observable and assignable proxy to concrete value

Observers can be registered with instances of this class so that they are notified when a different value is assigned to such instances. Client code can copy the contained value or pass it to functions via implicit conversion.

Note

it is not possible to call non-const method on the returned value. This is by design, as this possibility would necessarily bypass the notification code; client code should modify the value via re-assignment instead.