Workers

On start-up they are given system resources and told which of these, if any, are left from a previous worker in the same application, and which are new.

For example, a worker netlet may store data on a local file system. If it dies and is restarted the data may still be there from the last time and it can carry on. But it may be starting with a completely fresh system and therefore need to get the latest dataset from elsewhere before it starts work.

Beatrix provides a Worker class which has to have plugins added before it becomes useful.