Package com.opencqrs.framework.command

Interface StateRebuildingHandler.FromObjectAndMetaDataAndSubject<I,E>

Type Parameters:

I - the instance type

E - the event type to be sourced

All Superinterfaces:

StateRebuildingHandler<I,E>

Enclosing interface:

StateRebuildingHandler<I,E>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static non-sealed interface StateRebuildingHandler.FromObjectAndMetaDataAndSubject<I,E>
extends StateRebuildingHandler<I,E>

FunctionalInterface to be implemented, if the Java event, its meta-data, and subject is needed to reconstruct the instance state.

Nested Class Summary

Nested classes/interfaces inherited from interface com.opencqrs.framework.command.StateRebuildingHandler

StateRebuildingHandler.FromObject<I,E>, StateRebuildingHandler.FromObjectAndMetaData<I,E>, StateRebuildingHandler.FromObjectAndMetaDataAndSubject<I,E>, StateRebuildingHandler.FromObjectAndMetaDataAndSubjectAndRawEvent<I,E>, StateRebuildingHandler.FromObjectAndRawEvent<I,E>

Method Summary

Modifier and Type	Method	Description
I	on(I instance, E event, Map<String,?> metaData, String subject)	Applies the given event, its meta-data, and subject to the given instance (state).

Method Details

on

I on(I instance,
 E event,
 Map<String,?> metaData,
 String subject)

Applies the given event, its meta-data, and subject to the given instance (state).

Parameters:

instance - the instance to apply the event to, may be null

event - the event to apply

metaData - the event meta-data, may be empty

subject - the subject the event was published to

Returns:

an instance with the event, meta-data, and subject applied, ideally an immutable copy of the original instance