com.example.hello.impl

Interface HelloEvent

All Superinterfaces:

com.lightbend.lagom.javadsl.persistence.AggregateEvent<HelloEvent>, com.lightbend.lagom.serialization.Jsonable, java.io.Serializable

All Known Implementing Classes:

HelloEvent.GreetingMessageChanged

public interface HelloEvent
extends com.lightbend.lagom.serialization.Jsonable, com.lightbend.lagom.javadsl.persistence.AggregateEvent<HelloEvent>

This interface defines all the events that the HelloEntity supports.

By convention, the events should be inner classes of the interface, which makes it simple to get a complete picture of what events an entity has.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	HelloEvent.GreetingMessageChanged An event that represents a change in greeting message.

Field Summary

Fields

Modifier and Type	Field and Description
static com.lightbend.lagom.javadsl.persistence.AggregateEventShards<HelloEvent>	TAG Tags are used for getting and publishing streams of events.

Method Summary

Modifier and Type	Method and Description
default com.lightbend.lagom.javadsl.persistence.AggregateEventTagger<HelloEvent>	aggregateTag()

Field Detail

TAG

static final com.lightbend.lagom.javadsl.persistence.AggregateEventShards<HelloEvent> TAG

Tags are used for getting and publishing streams of events. Each event will have this tag, and in this case, we are partitioning the tags into 4 shards, which means we can have 4 concurrent processors/publishers of events.

Method Detail

aggregateTag

default com.lightbend.lagom.javadsl.persistence.AggregateEventTagger<HelloEvent> aggregateTag()

Specified by:

aggregateTag in interface com.lightbend.lagom.javadsl.persistence.AggregateEvent<HelloEvent>