org.axonframework.eventstore.mongo

Class MongoEventStore

java.lang.Object

org.axonframework.eventstore.mongo.MongoEventStore

All Implemented Interfaces:

EventStore, EventStoreManagement, SnapshotEventStore

public class MongoEventStore
extends Object
implements SnapshotEventStore, EventStoreManagement

Implementation of the EventStore based on a MongoDB instance or replica set. Sharding and pairing are not explicitly supported.

This event store implementation needs a serializer as well as a MongoTemplate to interact with the mongo database.

Warning: This implementation is still in progress and may be subject to alterations. The implementation works, but has not been optimized to fully leverage MongoDB's features, yet.

Since:

0.7

Author:

Jettro Coenradie

Constructor Summary

Constructors

Constructor and Description
MongoEventStore(MongoTemplate mongo) Constructor that uses the default Serializer.
MongoEventStore(Serializer<? super DomainEvent> eventSerializer, MongoTemplate mongo) Constructor that accepts a Serializer, the MongoTemplate and a string containing the testContext.

Method Summary

Methods

Modifier and Type	Method and Description
void	appendEvents(String type, DomainEventStream events)
void	appendSnapshotEvent(String type, DomainEvent snapshotEvent)
void	ensureIndexes() Make sure an index is created on the collection that stores domain events.
DomainEventStream	readEvents(String type, AggregateIdentifier identifier)
void	visitEvents(EventVisitor visitor)

Methods inherited from class java.lang.Object

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

Constructor Detail

MongoEventStore

public MongoEventStore(Serializer<? super DomainEvent> eventSerializer,
               MongoTemplate mongo)

Constructor that accepts a Serializer, the MongoTemplate and a string containing the testContext. The TestContext can be Null. Provide true in case of the test context.

Parameters:

eventSerializer - Your own Serializer

mongo - Mongo instance to obtain the database and the collections.

MongoEventStore

public MongoEventStore(MongoTemplate mongo)

Constructor that uses the default Serializer.

Parameters:

mongo - MongoTemplate instance to obtain the database and the collections.

Method Detail

ensureIndexes

@PostConstruct
public void ensureIndexes()

Make sure an index is created on the collection that stores domain events.

appendEvents

public void appendEvents(String type,
                DomainEventStream events)

Specified by:

appendEvents in interface EventStore

readEvents

public DomainEventStream readEvents(String type,
                           AggregateIdentifier identifier)

Specified by:

readEvents in interface EventStore

appendSnapshotEvent

public void appendSnapshotEvent(String type,
                       DomainEvent snapshotEvent)

Specified by:

appendSnapshotEvent in interface SnapshotEventStore

visitEvents

public void visitEvents(EventVisitor visitor)

Specified by:

visitEvents in interface EventStoreManagement