Apache Pekko 2.0.0-M3+222-b197663b-SNAPSHOT - org.apache.pekko.persistence.journal.WriteEventAdapter Apache Pekko2.0.0-M3+222-b197663b-SNAPSHOT < Back  Packages  package root Definition Classesroot  package org Definition Classesroot  package apache Definition Classesorg  package pekko Definition Classesapache  package persistence Definition Classespekko  package journal Definition Classespersistence  package inmem Definition Classesjournal  package japi Definition Classesjournal  package leveldb Definition Classesjournal AsyncRecovery AsyncReplayTimeoutException AsyncWriteJournal EmptyEventSeq EventAdapter EventAdapters EventSeq EventsSeq IdentityEventAdapter JournalPerfSpec JournalSpec PersistencePluginProxy PersistencePluginProxyExtension PersistencePluginProxyExtensionImpl ReadEventAdapter SingleEventSeq Tagged WriteEventAdapter t org.apache.pekko.persistence.journalWriteEventAdapter trait WriteEventAdapter extends AnyRef Facility to convert 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 splitting up large events into sequences of smaller onesSourceEventAdapter.scala Linear Supertypes AnyRef, Any Known Subclasses EventAdapter, IdentityEventAdapter Type Hierarchy  Ordering Alphabetic By Inheritance Inherited WriteEventAdapter AnyRef Any Implicitly by any2stringadd by StringFormat by Ensuring by ArrowAssoc Hide All Show All Visibility Public Protected Abstract Value Members  abstract def manifest(event: Any): String Return the manifest (type hint) that will be provided in the fromJournal method. Return the manifest (type hint) that will be provided in the fromJournal method. Use "" if manifest is not needed.  abstract def toJournal(event: Any): Any Convert domain event to journal event type. Convert domain event to journal event type. Some journal may require a specific type to be returned to them, for example if a primary key has to be associated with each event then a journal may require adapters to return com.example.myjournal.EventWithPrimaryKey(event, key). The toJournal adaptation must be an 1-to-1 transformation. It is not allowed to drop incoming events during the toJournal adaptation. event the application-side domain event to be adapted to the journal modelreturns the adapted event object, possibly the same object if no adaptation was performed Concrete Value Members  final def !=(arg0: Any): Boolean Definition ClassesAnyRef → Any  final def ##: Int Definition ClassesAnyRef → Any  def +(other: String): String ImplicitThis member is added by an implicit conversion from WriteEventAdapter toany2stringadd[WriteEventAdapter] performed by method any2stringadd in scala.Predef.Definition Classesany2stringadd  def ->[B](y: B): (WriteEventAdapter, B) ImplicitThis member is added by an implicit conversion from WriteEventAdapter toArrowAssoc[WriteEventAdapter] performed by method ArrowAssoc in scala.Predef.Definition ClassesArrowAssocAnnotations@inline()  final def ==(arg0: Any): Boolean Definition ClassesAnyRef → Any  final def asInstanceOf[T0]: T0 Definition ClassesAny  def clone(): AnyRef Attributesprotected[lang] Definition ClassesAnyRefAnnotations@throws(classOf[java.lang.CloneNotSupportedException]) @IntrinsicCandidate() @native()  def ensuring(cond: (WriteEventAdapter) => Boolean, msg: => Any): WriteEventAdapter ImplicitThis member is added by an implicit conversion from WriteEventAdapter toEnsuring[WriteEventAdapter] performed by method Ensuring in scala.Predef.Definition ClassesEnsuring  def ensuring(cond: (WriteEventAdapter) => Boolean): WriteEventAdapter ImplicitThis member is added by an implicit conversion from WriteEventAdapter toEnsuring[WriteEventAdapter] performed by method Ensuring in scala.Predef.Definition ClassesEnsuring  def ensuring(cond: Boolean, msg: => Any): WriteEventAdapter ImplicitThis member is added by an implicit conversion from WriteEventAdapter toEnsuring[WriteEventAdapter] performed by method Ensuring in scala.Predef.Definition ClassesEnsuring  def ensuring(cond: Boolean): WriteEventAdapter ImplicitThis member is added by an implicit conversion from WriteEventAdapter toEnsuring[WriteEventAdapter] performed by method Ensuring in scala.Predef.Definition ClassesEnsuring  final def eq(arg0: AnyRef): Boolean Definition ClassesAnyRef  def equals(arg0: AnyRef): Boolean Definition ClassesAnyRef → Any  final def getClass(): Class[_ <: AnyRef] Definition ClassesAnyRef → AnyAnnotations@IntrinsicCandidate() @native()  def hashCode(): Int Definition ClassesAnyRef → AnyAnnotations@IntrinsicCandidate() @native()  final def isInstanceOf[T0]: Boolean Definition ClassesAny  final def ne(arg0: AnyRef): Boolean Definition ClassesAnyRef  final def notify(): Unit Definition ClassesAnyRefAnnotations@IntrinsicCandidate() @native()  final def notifyAll(): Unit Definition ClassesAnyRefAnnotations@IntrinsicCandidate() @native()  final def synchronized[T0](arg0: => T0): T0 Definition ClassesAnyRef  def toString(): String Definition ClassesAnyRef → Any  final def wait(arg0: Long, arg1: Int): Unit Definition ClassesAnyRefAnnotations@throws(classOf[java.lang.InterruptedException])  final def wait(arg0: Long): Unit Definition ClassesAnyRefAnnotations@throws(classOf[java.lang.InterruptedException]) @native()  final def wait(): Unit Definition ClassesAnyRefAnnotations@throws(classOf[java.lang.InterruptedException]) Deprecated Value Members  def finalize(): Unit Attributesprotected[lang] Definition ClassesAnyRefAnnotations@throws(classOf[java.lang.Throwable]) @Deprecated Deprecated (Since version 9)  def formatted(fmtstr: String): String ImplicitThis member is added by an implicit conversion from WriteEventAdapter toStringFormat[WriteEventAdapter] performed by method StringFormat in scala.Predef.Definition ClassesStringFormatAnnotations@deprecated @inline() Deprecated (Since version 2.12.16) Use formatString.format(value) instead of value.formatted(formatString), or use the f"" string interpolator. In Java 15 and later, formatted resolves to the new method in String which has reversed parameters.  def →[B](y: B): (WriteEventAdapter, B) ImplicitThis member is added by an implicit conversion from WriteEventAdapter toArrowAssoc[WriteEventAdapter] performed by method ArrowAssoc in scala.Predef.Definition ClassesArrowAssocAnnotations@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. Inherited from AnyRef Inherited from Any Inherited by implicit conversion any2stringadd fromWriteEventAdapter to any2stringadd[WriteEventAdapter] Inherited by implicit conversion StringFormat fromWriteEventAdapter to StringFormat[WriteEventAdapter] Inherited by implicit conversion Ensuring fromWriteEventAdapter to Ensuring[WriteEventAdapter] Inherited by implicit conversion ArrowAssoc fromWriteEventAdapter to ArrowAssoc[WriteEventAdapter] Ungrouped