Nuria::Dependency< T > Class Template Reference

Smart pointer class for dependency injection. More...

#include <dependencymanager.hpp>

Public Member Functions
	Dependency (const QByteArray &objectName=QByteArray())
T *	get () const
	operator bool () const
bool	operator!= (const Dependency< T > &other) const
T *	operator-> () const
bool	operator== (const Dependency< T > &other) const

Detailed Description

template<typename T>
class Nuria::Dependency< T >

Smart pointer class for dependency injection.

Smart pointer which lazy-loads a referenced dependency from DependencyManager.

Usage

For objects with the default name, it's sufficient to use the default constructor:

Dependency< MyType > myType;

If you're using a different object name, you can pass it:

Dependency< MyType > myType (QByteArrayLiteral("someType"));

To access the instance, use operator-> as you'd any other pointer:

Dependency< MyType > myType;
myType->doSomething ();

See also

DependencyManager

Comparison operators

Dependency offers operators for equality (==) and inequality (!=). Both operators only compare the object name.

A operator for implicit conversion to bool is offered for compatibility with raw pointers. This operator fetches the instance (If not already done) and returns true, if the instance is not nullptr.

Constructor & Destructor Documentation

template<typename T>

Nuria::Dependency< T >::Dependency ( const QByteArray &  objectName = QByteArray () )

inline

Constructor. Takes an optional argument objectName. If not set, the name of the type of T is used.

Member Function Documentation

template<typename T>

T* Nuria::Dependency< T >::get ( ) const

inline

Returns the referenced instance. On first invocation, it will be fetched from the DependencyManager.

template<typename T>

Nuria::Dependency< T >::operator bool ( ) const

inline

Raw-pointer compatibility bool operator.

template<typename T>

bool Nuria::Dependency< T >::operator!= ( const Dependency< T > &  other ) const

inline

Inequality operator.

template<typename T>

T* Nuria::Dependency< T >::operator-> ( ) const

inline

Convenience accessor. See get().

template<typename T>

bool Nuria::Dependency< T >::operator== ( const Dependency< T > &  other ) const

inline

Equality operator.

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

• dependencymanager.hpp