Action::TaskFactory Class Reference

Task factory. More...

#include <actions.hpp>

List of all members.

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

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

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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().

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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