feat: set default priority

[geirsagberg]

Brief, plain english overview of your changes here

This PR makes it possible to set a default priority for all built-in task types.

This makes it possible to e.g. define recurring tasks that only will run when the queue is otherwise empty.

Fixes

Reminders

• Added/ran automated tests
• Update README and/or examples
• Ran mvn spotless:apply

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cc @kagkarlsson

[kagkarlsson]

Looks good 👍, just a couple of small comments.

(Also, this will not work when the client is using a TaskDescriptor to schedule new executions, i.e. without a reference to the Task, but I suppose the most important fix here is for recurring tasks)

[geirsagberg]

Looks good 👍, just a couple of small comments.

(Also, this will not work when the client is using a TaskDescriptor to schedule new executions, i.e. without a reference to the Task, but I suppose the most important fix here is for recurring tasks)

You can set the priority on either the TaskInstance.Builder, or on the instance itself, so should cover most use cases I believe