akka.persistence.journal

Interface EventAdapter

All Superinterfaces:

ReadEventAdapter, WriteEventAdapter

All Known Implementing Classes:

EventAdapters.CombinedReadEventAdapter, IdentityEventAdapter$, NoopReadEventAdapter, NoopWriteEventAdapter

public interface EventAdapter
extends WriteEventAdapter, ReadEventAdapter

An EventAdapter is both a WriteEventAdapter and a ReadEventAdapter. Facility to convert from and to specialised data models, as may be required by specialized persistence Journals.

Typical use cases include (but are not limited to):

• adding metadata, a.k.a. "tagging" - by wrapping objects into tagged counterparts
• manually converting to the Journals storage format, such as JSON, BSON or any specialised binary format
• adapting incoming events in any way before persisting them by the journal

Method Summary

Methods inherited from interface akka.persistence.journal.WriteEventAdapter

manifest, toJournal

Methods inherited from interface akka.persistence.journal.ReadEventAdapter

fromJournal