Arp::AppDomain Class Reference

This class represents a single application domain for each process and is implemented as singleton. More...

#include <AppDomain.hpp>

Inheritance diagram for Arp::AppDomain:

Public Member Functions
IApplication &	GetApplication (void)
	Gets the application instance of the current process. More...
template<class TSingleton >
void	AddSingleton (TSingleton *pSingleton)
	Adds a singleton instance to this AppDomain. More...
template<class TSingleton >
TSingleton &	GetSingleton (void)
	Gets the singleton instance of the specified type. More...
template<class TSingleton >
TSingleton *	GetSingletonPtr (void)
	Gets the singleton pointer of the specified type. More...
template<class TSingleton >
bool	RemoveSingleton (void)
	Removes the singleton pointer of the specified type from this AppDomain. More...

Static Public Member Functions
static bool	IsCreated (void)
	Determines if the appdomain was created yet. More...
static AppDomain &	GetCurrent (void)
	Gets the current AppDomain instance. More...
template<class TApp >
static TApp &	Create (void)
	Creates the current AppDomain and application instances. More...
template<class TApp >
static TApp &	Create (const String &appName)
	Creates the current AppDomain and application instances. More...
template<class TApp >
static void	Dispose (void)
	Disposes the current AppDomain and destructs the application. More...
static void	Assign (AppDomain &other)
	Assgins the current AppdDomain singleton from the as argument passed other. More...

Friends
class	Singleton< AppDomain >

Detailed Description

This class represents a single application domain for each process and is implemented as singleton.

The main purpose of this class is to extend the scope of simple singletons from just inside a library to the whole application. The singleton pattern just wraps a global variable in an OOP manner. Because dynamic shared libraries (DSL) always gets its own set of static variables, it is difficult to provide and use singletons from within generic static libraries which compile into each DSL and generate a copy of the singleton variables. As far as a DSL is a regular Acf library and loaded via Acf configuration, the AppDomainSingleton will work correclty and all AppDomainSingleton(s) are accessible through the whole process from any DSL.

The second purpose of this class is to provide the application instance.

Member Function Documentation

AddSingleton()

template<class TSingleton >

void Arp::AppDomain::AddSingleton ( TSingleton *  pSingleton )

inline

Adds a singleton instance to this AppDomain.

Parameters

pSingleton

The pointer to the singleton to add.

Template Parameters

TSingleton

The type of the singleton to add.

Assign()

void Arp::AppDomain::Assign ( AppDomain &  other )

inlinestatic

Assgins the current AppdDomain singleton from the as argument passed other.

Parameters

other

The other (main) AppDomain singleton to assign this isntance from.

This operation is called from within a DSL which was yet loaded and the AppDomain singleton (copy) is not initialized yet.

Create() [1/2]

template<class TApp >

TApp & Arp::AppDomain::Create ( const String &  appName )

inlinestatic

Creates the current AppDomain and application instances.

Template Parameters

TApp	The application type of the application to create

Parameters

appName

The name of the application instance to create

Returns

The created AppDomain instance as reference.

Create() [2/2]

template<class TApp >

TApp & Arp::AppDomain::Create ( void  )

inlinestatic

Creates the current AppDomain and application instances.

Template Parameters

TApp	The application type of the application to create

Returns

The created AppDomain instance as reference.

Dispose()

template<class TApp >

void Arp::AppDomain::Dispose ( void  )

inlinestatic

Disposes the current AppDomain and destructs the application.

Template Parameters

TApp	The application type of the application to create

GetApplication()

IApplication & Arp::AppDomain::GetApplication ( void  )

inline

Gets the application instance of the current process.

Returns

GThe application instance of the current process.

GetCurrent()

AppDomain & Arp::AppDomain::GetCurrent ( void  )

inlinestatic

Gets the current AppDomain instance.

Returns

The current AppDomain instance.

GetSingleton()

template<class TSingleton >

TSingleton & Arp::AppDomain::GetSingleton ( void  )

inline

Gets the singleton instance of the specified type.

Template Parameters

TSingleton

The type of the singleton to get.

Returns

The singleton reference of the specified type.

GetSingletonPtr()

template<class TSingleton >

TSingleton * Arp::AppDomain::GetSingletonPtr ( void  )

inline

Gets the singleton pointer of the specified type.

Template Parameters

TSingleton

The type of the singleton to get.

Returns

The singleton pointer of the specified type.

IsCreated()

bool Arp::AppDomain::IsCreated ( void  )

inlinestatic

Determines if the appdomain was created yet.

Returns

true if the appdomain was created yet, otherwise false.

RemoveSingleton()

template<class TSingleton >

bool Arp::AppDomain::RemoveSingleton ( void  )

inline

Removes the singleton pointer of the specified type from this AppDomain.

Template Parameters

TSingleton

The type of the singleton to remove.

Returns

true if the singleton exists and could be removed, otherwise false.

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

• Arp/System/Core/AppDomain.hpp