Trait

akka.persistence.journal

WriteEventAdapter

Related Doc: package journal

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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):

Source
EventAdapter.scala
Linear Supertypes
AnyRef, Any
Known Subclasses
EventAdapter, IdentityEventAdapter
Type Hierarchy
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Inherited
  1. WriteEventAdapter
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def manifest(event: Any): String

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    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.

  2. abstract def toJournal(event: Any): Any

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    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 model

    returns

    the adapted event object, possibly the same object if no adaptation was performed

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any

  3. def +(other: String): String

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    Implicit information
    This member is added by an implicit conversion from WriteEventAdapter to any2stringadd[WriteEventAdapter] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

  4. def ->[B](y: B): (WriteEventAdapter, B)

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    Implicit information
    This member is added by an implicit conversion from WriteEventAdapter to ArrowAssoc[WriteEventAdapter] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

  5. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  6. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  7. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  8. def ensuring(cond: (WriteEventAdapter) ⇒ Boolean, msg: ⇒ Any): WriteEventAdapter

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    Implicit information
    This member is added by an implicit conversion from WriteEventAdapter to Ensuring[WriteEventAdapter] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  9. def ensuring(cond: (WriteEventAdapter) ⇒ Boolean): WriteEventAdapter

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    Implicit information
    This member is added by an implicit conversion from WriteEventAdapter to Ensuring[WriteEventAdapter] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  10. def ensuring(cond: Boolean, msg: ⇒ Any): WriteEventAdapter

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    Implicit information
    This member is added by an implicit conversion from WriteEventAdapter to Ensuring[WriteEventAdapter] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  11. def ensuring(cond: Boolean): WriteEventAdapter

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    Implicit information
    This member is added by an implicit conversion from WriteEventAdapter to Ensuring[WriteEventAdapter] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  12. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  13. def equals(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  14. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  15. def formatted(fmtstr: String): String

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    Implicit information
    This member is added by an implicit conversion from WriteEventAdapter to StringFormat[WriteEventAdapter] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

  16. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any

  17. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  18. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

  19. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  20. final def notify(): Unit

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    Definition Classes
    AnyRef

  21. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

  22. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef

  23. def toString(): String

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    Definition Classes
    AnyRef → Any

  24. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  25. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  26. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  27. def →[B](y: B): (WriteEventAdapter, B)

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    Implicit information
    This member is added by an implicit conversion from WriteEventAdapter to ArrowAssoc[WriteEventAdapter] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from WriteEventAdapter to any2stringadd[WriteEventAdapter]

Inherited by implicit conversion StringFormat from WriteEventAdapter to StringFormat[WriteEventAdapter]

Inherited by implicit conversion Ensuring from WriteEventAdapter to Ensuring[WriteEventAdapter]

Inherited by implicit conversion ArrowAssoc from WriteEventAdapter to ArrowAssoc[WriteEventAdapter]

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