trait SlickHandler[Envelope] extends HandlerLifecycle
Implement this interface for the Envelope handler in SlickProjection.
It can be stateful, with variables and mutable data structures.
It is invoked by the Projection machinery one envelope at a time and visibility
guarantees between the invocations are handled automatically, i.e. no volatile or
other concurrency primitives are needed for managing the state.
Supported error handling strategies for when processing an Envelope fails can be
defined in configuration or using the withRecoveryStrategy method of a Projection
implementation.
- Annotations
- @ApiMayChange()
- Source
- SlickProjection.scala
- Alphabetic
- By Inheritance
- SlickHandler
- HandlerLifecycle
- AnyRef
- Any
- Hide All
- Show All
- Public
- Protected
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native()
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef → Any
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- def hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native()
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native()
- def start(): Future[Done]
Invoked when the projection is starting, before first envelope is processed.
Invoked when the projection is starting, before first envelope is processed. Can be overridden to implement initialization. It is also called when the
Projectionis restarted after a failure.- Definition Classes
- HandlerLifecycle
- def stop(): Future[Done]
Invoked when the projection has been stopped.
Invoked when the projection has been stopped. Can be overridden to implement resource cleanup. It is also called when the
Projectionis restarted after a failure.- Definition Classes
- HandlerLifecycle
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
- Definition Classes
- AnyRef → Any
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()