zypp::base::ProvideNumericId< _Derived, _NumericIdType > Struct Template Reference

Base class for objects providing a numeric Id. More...

#include <ProvideNumericId.h>

List of all members.

Public Member Functions
_NumericIdType	numericId () const
Protected Member Functions
	ProvideNumericId ()
	Default ctor.
	ProvideNumericId (const ProvideNumericId &)
	Copy ctor.
ProvideNumericId &	operator= (const ProvideNumericId &)
	Assign.
	~ProvideNumericId ()
	Dtor.
	ProvideNumericId (const void *const )
	No-Id ctor (0).
Static Private Member Functions
static _NumericIdType	nextId ()
	Provide the next Id to use.
Private Attributes
const _NumericIdType	_numericId

---

Detailed Description

template<class _Derived, class _NumericIdType>
struct zypp::base::ProvideNumericId< _Derived, _NumericIdType >

Base class for objects providing a numeric Id.

The ctor creates a NumericId from some static counter.

The only assertion is that 0 is not used as an Id, unless the derived class explicitly requests this by using ProvideNumericId( const void *const ).

Why should you want to use 0 as an Id? E.g if your class provides some (singleton) No-object. Might be desirable to make the No-object have No-Id.

 struct Foo : public base::ProvideNumericId<Foo,unsigned>
 {};
 Foo foo;
 foo.numericId(); // returns foo's NumericId.

Definition at line 45 of file ProvideNumericId.h.

---

Constructor & Destructor Documentation

template<class _Derived, class _NumericIdType> zypp::base::ProvideNumericId< _Derived, _NumericIdType >::ProvideNumericId (   )  [inline, protected]

Default ctor. Definition at line 54 of file ProvideNumericId.h.

template<class _Derived, class _NumericIdType> zypp::base::ProvideNumericId< _Derived, _NumericIdType >::ProvideNumericId (  const ProvideNumericId< _Derived, _NumericIdType > &   )  [inline, protected]

Copy ctor. Definition at line 58 of file ProvideNumericId.h.

template<class _Derived, class _NumericIdType> zypp::base::ProvideNumericId< _Derived, _NumericIdType >::~ProvideNumericId (   )  [inline, protected]

Dtor. Definition at line 65 of file ProvideNumericId.h.

template<class _Derived, class _NumericIdType> zypp::base::ProvideNumericId< _Derived, _NumericIdType >::ProvideNumericId (  const void *  const  )  [inline, protected]

No-Id ctor (0). Explicitly request Id 0. Use it with care! Definition at line 71 of file ProvideNumericId.h.

---

Member Function Documentation

template<class _Derived, class _NumericIdType> _NumericIdType zypp::base::ProvideNumericId< _Derived, _NumericIdType >::numericId (   )  const [inline]

Returns: The objects numeric Id. Definition at line 49 of file ProvideNumericId.h.

template<class _Derived, class _NumericIdType> ProvideNumericId& zypp::base::ProvideNumericId< _Derived, _NumericIdType >::operator= (  const ProvideNumericId< _Derived, _NumericIdType > &   )  [inline, protected]

Assign. Definition at line 62 of file ProvideNumericId.h.

template<class _Derived, class _NumericIdType> static _NumericIdType zypp::base::ProvideNumericId< _Derived, _NumericIdType >::nextId (   )  [inline, static, private]

Provide the next Id to use. Definition at line 76 of file ProvideNumericId.h.

---

Member Data Documentation

template<class _Derived, class _NumericIdType> const _NumericIdType zypp::base::ProvideNumericId< _Derived, _NumericIdType >::_numericId [private]

Definition at line 83 of file ProvideNumericId.h. Referenced by zypp::base::ProvideNumericId< TraceCAD< _Tp >, unsigned long >::numericId().

---

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

• zypp/base/ProvideNumericId.h

---