Dune::Singleton< T > Class Template Reference

An adapter to turn a class into a singleton. More...

#include <dune/common/singleton.hh>

List of all members.

Static Public Member Functions
static T &	instance ()
	Get the instance of the singleton.
Protected Member Functions
	Singleton ()
	Singleton (const Singleton &)
	Private copy constructor.
Singleton &	operator= (const Singleton &)
	Private assignment operator.

---

Detailed Description

template<class T>
class Dune::Singleton< T >

An adapter to turn a class into a singleton.

The class represented by the template parameter T must have a parameterless constructor.

Class T can be publicly derived from Singleton<T>:

 #include<dune/common/singleton.hh>
 class Foo : public Dune::Singleton<Foo>
 {
 public:
   Foo()
   {
     bytes = new char[1000];
   }
   
   ~Foo()
   {
     delete[] bytes;
   }
 private:
   char* bytes;
 };

Or one can construct a Singleton of an existing class. Say Foo1 is a class with parameterless constructor then

 typedef Dune::Singleton<Foo1> FooSingleton;
 Foo1 instance& = FooSingleton::instance();

Creates a singleton of that class and accesses its instance.

---

Constructor & Destructor Documentation

template<class T >

Dune::Singleton< T >::Singleton

(

)

[inline, protected]

template<class T >

Dune::Singleton< T >::Singleton

(

const Singleton< T > &

)

[inline, protected]

Private copy constructor.

---

Member Function Documentation

template<class T >

static T& Dune::Singleton< T >::instance

(

)

[inline, static]

Get the instance of the singleton.

Returns:

The instance of the singleton.

template<class T >

Singleton& Dune::Singleton< T >::operator=

(

const Singleton< T > &

)

[inline, protected]

Private assignment operator.

---

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

• singleton.hh