Represents a manager for big resources. Also provides the class factory for the Flyweight_Class instances that are associated with a particular big resource. More...

#include <Flyweight_Classes.h>

Collaboration diagram for BigResourceManager:

Static Public Member Functions
static int	AddResource (std::vector< std::string > rawResource)
	Add a new big resource and return the ID of the resource.

static Flyweight_Class::unique_ptr_t	CreateFlyweight (int bigResourceId, Flyweight_Context context)
	Create a new instance of the Flyweight_Class associated with the given big resource and a context, in this case an X,Y position.

Private Types
using	BigResourceList = std::vector< std::unique_ptr< BigResource > >

Static Private Member Functions
static int	GetNextResourceId ()
	Retrieve the next resource ID that can be used.

static BigResource *	FindResource (int resourceId)
	Retrieve the BigResource corresponding to the specified ID.

Static Private Attributes
static BigResourceList	_resources
	A list of all big resources managed by this class.

static int	_nextResourceId = 1
	The next ID to assign a raw resource for management.

Detailed Description

Represents a manager for big resources. Also provides the class factory for the Flyweight_Class instances that are associated with a particular big resource.

Note: The raw resource is provided by the caller and an ID is then associated with it. The ID is returned to the caller who then passes that ID to the Flyweight_Class factory along with a context.

In the exercise, only one big resource is ever created so this class is likely overkill for an example but it fully shows the architectural context in which a flyweight class is utilized.

Definition at line 281 of file Flyweight_Classes.h.

Member Typedef Documentation

◆ BigResourceList

using BigResourceList = std::vector<std::unique_ptr<BigResource> >

private

Definition at line 284 of file Flyweight_Classes.h.

Member Function Documentation

◆ AddResource()

int AddResource ( std::vector< std::string > rawResource )

static

Add a new big resource and return the ID of the resource.

Parameters

rawResource The resource to add.

Returns: Returns the ID of the new big resource added to the manager.

Definition at line 185 of file Flyweight_Classes.cpp.

References BigResourceManager::_resources, and BigResourceManager::GetNextResourceId().

◆ CreateFlyweight()

Flyweight_Class::unique_ptr_t CreateFlyweight	(	int	bigResourceId,
		Flyweight_Context	context
	)

static

Create a new instance of the Flyweight_Class associated with the given big resource and a context, in this case an X,Y position.

Parameters

bigResourceId	ID of the big resource to associate with.
context	A Flyweight_Context instance containing the context for the desired Flyweight_Class instance.