[akka-user] [akka-persistence] readjournal query by multiple tags
Is there a feature (planned?) to support querying the read journal by
multiple tags. Typically projections in an event sourced application only
update from a very small subset of the events. Say I have a UserProjection
that creates/updates a UserReadModel from a UserRegistered event and all
other User* events don't affect that read model. In this case it would be
useful to have a queryByTags(Seq("UserRegistered"), ) method on the
read journal which would make (re)building that projection much more
efficient.
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[akka-user] Unit test akka persistence against the inmem journal
How can I get a handle to the inmem journal from my tests. I'm trying to
write a simple test wrapper that looks something like this:
given("an order") {
Seq(OrderCreated(orderId=1234), ItemAdded(productId=123, quantity=5))
}
when("removing an item") {
RemoveItemCommand(orderId=1234, productId=123, quantity=3)
}
then("the item should be removed") {
Seq(ItemRemoved(orderId-1234, productId=123, quantity=3))
}
So the given function would have to insert some events into the in-memory
journal and the then function would have to assert on the in-memory journal
that the sequence of expected events is added to the journal.
--
>> Read the docs: http://akka.io/docs/
>> Check the FAQ:
>> http://doc.akka.io/docs/akka/current/additional/faq.html
>> Search the archives: https://groups.google.com/group/akka-user
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