NoEventUpcaster

java.lang.Object

com.opencqrs.framework.upcaster.NoEventUpcaster

All Implemented Interfaces:: EventUpcaster

public class NoEventUpcaster extends Object implements EventUpcaster

EventUpcaster implementation that drops an Event if the Event.type() matches the configured type.

Nested Class Summary

Nested classes/interfaces inherited from interface com.opencqrs.framework.upcaster.EventUpcaster
EventUpcaster.Result
Constructor Summary

Constructors

Constructor

Description

NoEventUpcaster(String type)
Method Summary

Modifier and Type

Method

Description

boolean

canUpcast(Event event)

Determines if this upcaster is relevant for upcasting the given Event.

Stream<EventUpcaster.Result>

upcast(Event event)

Upcasts the given event to a stream of EventUpcaster.Results.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- NoEventUpcaster
  
  public NoEventUpcaster(String type)
Method Details
- canUpcast
  
  public boolean canUpcast(Event event)
  
  Description copied from interface: EventUpcaster
  
  Determines if this upcaster is relevant for upcasting the given Event. This method must be called prior to EventUpcaster.upcast(Event).
  
  Specified by:
  
  canUpcast in interface EventUpcaster
  
  Parameters:
  
  event - the event that may need to be upcasted
  
  Returns:
  
  true if this can upcast the event, false otherwise
- upcast
  
  public Stream<EventUpcaster.Result> upcast(Event event)
  
  Description copied from interface: EventUpcaster
  Upcasts the given event to a stream of EventUpcaster.Results. This allows implementations to:
  
  effectively drop an event by returning an empty stream
  upcast an event to one new event by returning a single element stream
  effectively split up an event by returning a multi element stream
  Specified by:
  
  upcast in interface EventUpcaster
  
  Parameters:
  
  event - the event to be upcasted
  
  Returns:
  
  a stream of EventUpcaster.Results carrying the upcasted Event.type() and Event.data()