Dune::Singleton< T > Class Template Reference

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

#include <dune/common/singleton.hh>

Public Member Functions
	Singleton (const Singleton &)=delete
void	operator= (const Singleton &)=delete

Static Public Member Functions
static DUNE_EXPORT T &	instance ()
	Get the instance of the singleton.

Protected Member Functions
	Singleton ()=default

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

Singleton() [1/2]

template<class T >

Dune::Singleton< T >::Singleton ( )

protecteddefault

Singleton() [2/2]

template<class T >

Dune::Singleton< T >::Singleton ( const Singleton< T > &  )

delete

Member Function Documentation

instance()

template<class T >

static DUNE_EXPORT T & Dune::Singleton< T >::instance ( )

inlinestatic

Get the instance of the singleton.

Returns

The instance of the singleton.

operator=()

template<class T >

void Dune::Singleton< T >::operator= ( const Singleton< T > &  )

delete

---

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

• singleton.hh