trait Effect[T] extends AnyRef
An Effect is a description of what Kalix needs to do after the command is handled. You can think of it as a set of instructions you are passing to Kalix. Kalix will process the instructions on your behalf and ensure that any data that needs to be persisted will be persisted.
Each Kalix component defines its own effects, which are a set of predefined operations that match the capabilities of that component.
An EventSourcedEntity Effect can either:
- emit events and send a reply to the caller
- directly reply to the caller if the command is not requesting any state change
- rejected the command by returning an error
- instruct Kalix to delete the entity
- T
The type of the message that must be returned by this call.
- Source
- EventSourcedEntity.scala
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Abstract Value Members
- abstract def addSideEffects(sideEffects: Seq[SideEffect]): Effect[T]
Attach the given side effects to this reply.
Attach the given side effects to this reply.
- sideEffects
The effects to attach.
- returns
A new reply with the attached effects.
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- final def !=(arg0: Any): Boolean
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- def +(other: String): String
- def ->[B](y: B): (Effect[T], B)
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- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- def ensuring(cond: (Effect[T]) => Boolean, msg: => Any): Effect[T]
- def ensuring(cond: (Effect[T]) => Boolean): Effect[T]
- def ensuring(cond: Boolean, msg: => Any): Effect[T]
- def ensuring(cond: Boolean): Effect[T]
- final def eq(arg0: AnyRef): Boolean
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- def finalize(): Unit
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(Since version 9)
- def formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from Effect[T] toStringFormat[Effect[T]] 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): (Effect[T], B)
- Implicit
- This member is added by an implicit conversion from Effect[T] toArrowAssoc[Effect[T]] performed by method ArrowAssoc in scala.Predef.
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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.