Features nice to have

[bdamian]

eager initialization

A single task is used only in context of a single subpartition. A suggestion is to provide all arguments during task creation – methodWorkerTaskFactory::createTask(...) instead of during later init call.

[bdamian]

topic's configuration parameters

In multiple projects we have some configuration parameters specific to a topic. It would be very convenient to get those parameters when a task is instantiated.

[bdamian]

contexts

Related to eager initialization.
Provide an immutable context to a task during construction. A context consists of multiple information and decreases possible memory footprint of a task, because many objects like WorkerSubpartition may be reused and shared during application life.