Action::TaskFactory Class Reference

Task factory. More...

#include <actions.hpp>

Public Member Functions
void	cleanup ()
	Destructor.
Task::AutoPtr	create (TaskType type)
	Create a task. More...
void	registerTask (TaskType type, Task::AutoPtr task)
	Register a task prototype together with its type. More...

Static Public Member Functions
static TaskFactory &	instance ()
	Get access to the task factory. More...

Detailed Description

Task factory.

Creates an instance of the task of the requested type. The factory is implemented as a singleton, which can be accessed only through the static member function instance().

Member Function Documentation

Task::AutoPtr Action::TaskFactory::create

(

TaskType

type

)

Create a task.

Parameters

type	Identifies the type of task to create.

Returns

An auto pointer that owns a task of the requested type. If the task type is not supported, the pointer is 0.

Remarks

The caller of the function should check the content of the returned auto pointer and take appropriate action (e.g., throw an exception) if it is 0.

References Action::Task::clone().

TaskFactory & Action::TaskFactory::instance ( )

static

Get access to the task factory.

Clients access the task factory exclusively through this method.

void Action::TaskFactory::registerTask	(	TaskType	type,
		Task::AutoPtr	task
	)

Register a task prototype together with its type.

The task factory creates new tasks of a given type by cloning its associated prototype. Additional tasks can be registered. If called for a type which already exists in the list, the corresponding prototype is replaced.

Parameters

type	Task type.
task	Pointer to the prototype. Ownership is transfered to the task factory. That's what the auto pointer indicates.

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

• actions.hpp
• actions.cpp