Kafka streams use cases for add global store

Question

When defining a topology in kafka streams, a global state store can be added. It will need a source topic as well as a ProcessorSupplier. The processor receive

Answer 1

At present there doesn't seem to be a way to listen to changes on a KGlobalTable.

You can achieve a similar result with a global store and custom processor.

I stumbled across this here How to be notified about updates to state store of GlobalKTable?

I'm not arguing that this is a good use case, but as a workaround it can be helpful.