TaskAdapter Class

template <typename Task> class Tasking::TaskAdapter

A class template for implementing custom task adapters. More...

Header: #include <solutions/tasking/tasktree.h>
Inherits: Tasking::TaskInterface

Protected Types

Protected Functions

TaskAdapter()
Task *task()
const Task *task() const

Detailed Description

The TaskAdapter class template is responsible for creating a task of the Task type, starting it, and reporting success or an error when the task is finished. It also associates the adapter with a given Task type.

Reimplement this class with the actual Task type to adapt the task's interface into the general TaskTree's interface for managing the Task instances.

Each subclass needs to provide a public default constructor, implement the start() method, and emit the done() signal when the task is finished. Use task() to access the associated Task instance.

To use your task adapter inside the task tree, create an alias to the Tasking::CustomTask template passing your task adapter as a template parameter:

// Defines actual worker
class Worker {...};

// Adapts Worker's interface to work with task tree
class WorkerTaskAdapter : public TaskAdapter<Worker> {...};

// Defines WorkerTask as a new task tree element
using WorkerTask = CustomTask<WorkerTaskAdapter>;

For more information on implementing the custom task adapters, refer to Task Adapters.

See also start(), done(), and task().

Member Type Documentation

[alias] TaskAdapter::Type

Type alias for the Task type.

Member Function Documentation

[protected] TaskAdapter::TaskAdapter()

Creates a task adapter for the given Task type. Internally, it creates an instance of Task, which is accessible via the task() method.

See also task().

[protected] Task *TaskAdapter::task()

Returns the pointer to the associated Task instance.

[protected] const Task *TaskAdapter::task() const

This is an overloaded function.

Returns the const pointer to the associated Task instance.

© 2023 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.