Aggregate (eventsourced-aggregates 0.9.15 API)

Type Parameters:

ID - the aggregate id (or stream-id) type

All Known Subinterfaces:

StatefulAggregate<ID,EVENT_TYPE,AGGREGATE_TYPE>

All Known Implementing Classes:

AggregateRoot, AggregateRoot, AggregateRootWithState, FlexAggregate
```
public interface Aggregate<ID,AGGREGATE_TYPE extends Aggregate<ID,AGGREGATE_TYPE>>
```
Common interface that all concrete (classical) Aggregate's must implement. Most concrete implementations choose to extend the AggregateRoot class.

See Also:

AggregateRoot

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`ID`	`aggregateId()`	The id of the aggregate (aka.
`dk.cloudcreate.essentials.components.eventsourced.eventstore.postgresql.types.EventOrder`	`eventOrderOfLastRehydratedEvent()`	Get the eventOrder of the last event during aggregate hydration (using the `rehydrate(AggregateEventStream)` method)
`boolean`	`hasBeenRehydrated()`	Has the aggregate been initialized using previously recorded/persisted events (aka.
`AGGREGATE_TYPE`	`rehydrate(dk.cloudcreate.essentials.components.eventsourced.eventstore.postgresql.eventstream.AggregateEventStream<ID> persistedEvents)`	Effectively performs a leftFold over all the previously persisted events related to this aggregate instance

- Method Detail
  - aggregateId
```
ID aggregateId()
```
    The id of the aggregate (aka. the stream-id)
  - hasBeenRehydrated
```
boolean hasBeenRehydrated()
```
    Has the aggregate been initialized using previously recorded/persisted events (aka. historic events) using the rehydrate(AggregateEventStream) method
  - rehydrate
```
AGGREGATE_TYPE rehydrate(dk.cloudcreate.essentials.components.eventsourced.eventstore.postgresql.eventstream.AggregateEventStream<ID> persistedEvents)
```
    Effectively performs a leftFold over all the previously persisted events related to this aggregate instance
    
    Parameters:
    
    persistedEvents - the previous persisted events related to this aggregate instance, aka. the aggregates history
    
    Returns:
    
    the same aggregate instance (self)
  - eventOrderOfLastRehydratedEvent
```
dk.cloudcreate.essentials.components.eventsourced.eventstore.postgresql.types.EventOrder eventOrderOfLastRehydratedEvent()
```
    Get the eventOrder of the last event during aggregate hydration (using the rehydrate(AggregateEventStream) method)
    
    Returns:
    
    the event order of the last applied Event or EventOrder.NO_EVENTS_PREVIOUSLY_PERSISTED in case no events has ever been applied to the aggregate