com.networknt.eventuate.common

Interface EventHandlerContext<T extends Event>

Type Parameters:

T - the type of the event

All Superinterfaces:

EventEnvelope<T>

public interface EventHandlerContext<T extends Event>
extends EventEnvelope<T>

Wraps the event that is passed to a command-side event handler

Method Summary

Modifier and Type	Method and Description
<A extends CommandProcessingAggregate<A,CT>,CT extends Command> CompletableFuture<EntityWithIdAndVersion<A>>	save(Class<A> entityClass, CT command, Optional<String> entityId) Creates an aggregate in response to an event
<A extends CommandProcessingAggregate<A,CT>,CT extends Command> CompletableFuture<EntityWithIdAndVersion<A>>	update(Class<A> entityClass, String entityId, CT command) Updates an aggregate in response to an event
<A extends CommandProcessingAggregate<A,CT>,CT extends Command> CompletableFuture<EntityWithIdAndVersion<A>>	updateWithProvidedCommand(Class<A> entityClass, String entityId, Function<A,Optional<CT>> commandProvider) Updates an aggregate in response to an event

Methods inherited from interface com.networknt.eventuate.common.EventEnvelope

getEntityId, getEvent, getEventContext, getEventId, getEventMetadata, getEventType, getOffset, getSwimlane

Method Detail

save

<A extends CommandProcessingAggregate<A,CT>,CT extends Command> CompletableFuture<EntityWithIdAndVersion<A>> save(Class<A> entityClass,
                                                                                                                  CT command,
                                                                                                                  Optional<String> entityId)

Creates an aggregate in response to an event

Type Parameters:

A - the aggregate class

CT - the command class

Parameters:

entityClass - the class of the aggregate to create, must be a subclass of CommandProcessingAggregate

command - the command to process

entityId - the optional id of the aggregate to create

Returns:

the newly created and persisted aggregate

update

<A extends CommandProcessingAggregate<A,CT>,CT extends Command> CompletableFuture<EntityWithIdAndVersion<A>> update(Class<A> entityClass,
                                                                                                                    String entityId,
                                                                                                                    CT command)

Updates an aggregate in response to an event

Type Parameters:

A - the aggregate class

CT - the command class

Parameters:

entityClass - the class of the aggregate to create, must be a subclass of CommandProcessingAggregate

command - the command to process

entityId - the optional id of the aggregate to create

Returns:

the updated and persisted aggregate

updateWithProvidedCommand

<A extends CommandProcessingAggregate<A,CT>,CT extends Command> CompletableFuture<EntityWithIdAndVersion<A>> updateWithProvidedCommand(Class<A> entityClass,
                                                                                                                                       String entityId,
                                                                                                                                       Function<A,Optional<CT>> commandProvider)

Updates an aggregate in response to an event

Type Parameters:

A - the aggregate class

CT - the command class

Parameters:

entityClass - the class of the aggregate to create, must be a subclass of CommandProcessingAggregate

commandProvider - provides the command to process

entityId - the optional id of the aggregate to create

Returns:

the updated and persisted aggregate