br.net.eventstore

Class EventStore

java.lang.Object

br.net.eventstore.EventStore

All Implemented Interfaces:

HasSubscribers

public class EventStore
extends java.lang.Object
implements HasSubscribers

The EventStore itself. To create EventStore instances, use the EventStoreBuilder

Method Summary

Modifier and Type	Method and Description
java.util.stream.Stream<java.lang.String>	getAggregations() Retrieves the aggregation list
java.util.stream.Stream<java.lang.String>	getAggregations(int offset, int limit) Retrieves a ranged aggregation list
EventStream	getEventStream(java.lang.String aggregation, java.lang.String streamId) Retrieve an event stream.
java.util.stream.Stream<java.lang.String>	getStreams(java.lang.String aggregation) Retrieves the stream list
java.util.stream.Stream<java.lang.String>	getStreams(java.lang.String aggregation, int offset, int limit) Retrieves a ranged stream list
Subscription	subscribe(java.lang.String aggregation, Subscriber subscriber) Add a new subscription to notifications channel associated with the given aggregation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getEventStream

public EventStream getEventStream(java.lang.String aggregation,
                                  java.lang.String streamId)

Retrieve an event stream.

Parameters:

aggregation - The parent aggregation for the event stream

streamId - The stream identifier. Can be any string

Returns:

The existing stream. If no stream exists for to the given id, a new one will be created when the first event is added to the stream.

subscribe

public Subscription subscribe(java.lang.String aggregation,
                              Subscriber subscriber)

Add a new subscription to notifications channel associated with the given aggregation. It is necessary to have a valid Publisher configured that supports subscriptions.

Specified by:

subscribe in interface HasSubscribers

Parameters:

aggregation - The aggregation for the stream events

subscriber - Declares the function to be called to handle new messages

Returns:

A subscription. Can be used to remove the subscription to the publisher channel.

getAggregations

public java.util.stream.Stream<java.lang.String> getAggregations()

Retrieves the aggregation list

Returns:

The aggregation list

getAggregations

public java.util.stream.Stream<java.lang.String> getAggregations(int offset,
                                                                 int limit)

Retrieves a ranged aggregation list

Parameters:

offset - The start position in the aggregation list

limit - The desired quantity aggregations

Returns:

The aggregation list

getStreams

public java.util.stream.Stream<java.lang.String> getStreams(java.lang.String aggregation)

Retrieves the stream list

Parameters:

aggregation - The aggregation

Returns:

The stream list

getStreams

public java.util.stream.Stream<java.lang.String> getStreams(java.lang.String aggregation,
                                                            int offset,
                                                            int limit)

Retrieves a ranged stream list

Parameters:

aggregation - The aggregation

offset - The start position in the stream list

limit - The desired quantity streams

Returns:

The stream list