trait ReadEventAdapter extends AnyRef
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):
- extracting events from "envelopes"
- manually converting to the Journals storage format, such as JSON, BSON or any specialised binary format
- adapting incoming events from a "data model" to the "domain model"
- Source
- EventAdapter.scala
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Abstract Value Members
- abstract def fromJournal(event: Any, manifest: String): EventSeq
Convert a event from its journal model to the applications domain model.
Convert a event from its journal model to the applications domain model.
One event may be adapter into multiple (or none) events which should be delivered to the akka.persistence.PersistentActor. Use the specialised akka.persistence.journal.EventSeq#single method to emit exactly one event, or akka.persistence.journal.EventSeq#empty in case the adapter is not handling this event. Multiple EventAdapter instances are applied in order as defined in configuration and their emitted event seqs are concatenated and delivered in order to the PersistentActor.
- event
event to be adapted before delivering to the PersistentActor
- manifest
optionally provided manifest (type hint) in case the Adapter has stored one for this event,
""if none- returns
sequence containing the adapted events (possibly zero) which will be delivered to the PersistentActor
Concrete Value Members
- final def !=(arg0: Any): Boolean
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- def +(other: String): String
- Implicit
- This member is added by an implicit conversion from ReadEventAdapter toany2stringadd[ReadEventAdapter] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
- def ->[B](y: B): (ReadEventAdapter, B)
- Implicit
- This member is added by an implicit conversion from ReadEventAdapter toArrowAssoc[ReadEventAdapter] performed by method ArrowAssoc in scala.Predef.
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- @throws(classOf[java.lang.CloneNotSupportedException]) @HotSpotIntrinsicCandidate() @native()
- def ensuring(cond: (ReadEventAdapter) => Boolean, msg: => Any): ReadEventAdapter
- Implicit
- This member is added by an implicit conversion from ReadEventAdapter toEnsuring[ReadEventAdapter] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (ReadEventAdapter) => Boolean): ReadEventAdapter
- Implicit
- This member is added by an implicit conversion from ReadEventAdapter toEnsuring[ReadEventAdapter] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: => Any): ReadEventAdapter
- Implicit
- This member is added by an implicit conversion from ReadEventAdapter toEnsuring[ReadEventAdapter] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): ReadEventAdapter
- Implicit
- This member is added by an implicit conversion from ReadEventAdapter toEnsuring[ReadEventAdapter] performed by method Ensuring in scala.Predef.
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- Ensuring
- final def eq(arg0: AnyRef): Boolean
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- Deprecated
(Since version 9)
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from ReadEventAdapter toStringFormat[ReadEventAdapter] performed by method StringFormat in scala.Predef.
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- StringFormat
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- @deprecated @inline()
- Deprecated
(Since version 2.12.16) Use
formatString.format(value)instead ofvalue.formatted(formatString), or use thef""string interpolator. In Java 15 and later,formattedresolves to the new method in String which has reversed parameters.
- def →[B](y: B): (ReadEventAdapter, B)
- Implicit
- This member is added by an implicit conversion from ReadEventAdapter toArrowAssoc[ReadEventAdapter] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
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- @deprecated
- Deprecated
(Since version 2.13.0) Use
->instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.