org.axonframework.extensions.mongo.eventsourcing.eventstore

Class MongoEventStorageEngine.Builder

java.lang.Object

org.axonframework.eventsourcing.eventstore.AbstractEventStorageEngine.Builder

org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

org.axonframework.extensions.mongo.eventsourcing.eventstore.MongoEventStorageEngine.Builder

Enclosing class:

MongoEventStorageEngine

public static class MongoEventStorageEngine.Builder
extends org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

Builder class to instantiate a MongoEventStorageEngine.

The following configurable fields have defaults:

• The snapshot Serializer defaults to XStreamSerializer.
• The EventUpcaster defaults to an NoOpEventUpcaster.
• The PersistenceExceptionResolver is defaulted to MongoEventStorageEngine.isDuplicateKeyException(Exception)
• The event Serializer defaults to a XStreamSerializer.
• The snapshotFilter defaults to a Predicate which returns true regardless.
• The batchSize defaults to an integer of size 100.
• The StorageStrategy defaults to a DocumentPerEventStorageStrategy.

The MongoTemplate is a hard requirement and as such should be provided.

Field Summary

Fields inherited from class org.axonframework.eventsourcing.eventstore.AbstractEventStorageEngine.Builder

upcasterChain

Method Summary

Modifier and Type	Method and Description
MongoEventStorageEngine.Builder	batchSize(int batchSize)
MongoEventStorageEngine	build() Initializes a MongoEventStorageEngine as specified through this Builder.
MongoEventStorageEngine.Builder	eventSerializer(org.axonframework.serialization.Serializer eventSerializer)
MongoEventStorageEngine.Builder	mongoTemplate(MongoTemplate template) Sets the MongoTemplate used to obtain the database and the collections.
MongoEventStorageEngine.Builder	persistenceExceptionResolver(org.axonframework.common.jdbc.PersistenceExceptionResolver persistenceExceptionResolver)
MongoEventStorageEngine.Builder	snapshotFilter(Predicate<? super org.axonframework.eventhandling.DomainEventData<?>> snapshotFilter) Deprecated. in favor of snapshotFilter(SnapshotFilter)
MongoEventStorageEngine.Builder	snapshotFilter(org.axonframework.eventsourcing.snapshotting.SnapshotFilter snapshotFilter)
MongoEventStorageEngine.Builder	snapshotSerializer(org.axonframework.serialization.Serializer snapshotSerializer)
MongoEventStorageEngine.Builder	storageStrategy(StorageStrategy storageStrategy) Sets the StorageStrategy specifying how to store and retrieve events and snapshots from the collections.
MongoEventStorageEngine.Builder	upcasterChain(org.axonframework.serialization.upcasting.event.EventUpcaster upcasterChain)
protected void	validate() Validates whether the fields contained in this Builder are set accordingly.

Methods inherited from class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

finalAggregateBatchPredicate

Methods inherited from class java.lang.Object

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

Method Detail

snapshotSerializer

public MongoEventStorageEngine.Builder snapshotSerializer(org.axonframework.serialization.Serializer snapshotSerializer)

Overrides:

snapshotSerializer in class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

upcasterChain

public MongoEventStorageEngine.Builder upcasterChain(org.axonframework.serialization.upcasting.event.EventUpcaster upcasterChain)

Overrides:

upcasterChain in class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

persistenceExceptionResolver

public MongoEventStorageEngine.Builder persistenceExceptionResolver(org.axonframework.common.jdbc.PersistenceExceptionResolver persistenceExceptionResolver)

Overrides:

persistenceExceptionResolver in class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

eventSerializer

public MongoEventStorageEngine.Builder eventSerializer(org.axonframework.serialization.Serializer eventSerializer)

Overrides:

eventSerializer in class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

snapshotFilter

@Deprecated
public MongoEventStorageEngine.Builder snapshotFilter(Predicate<? super org.axonframework.eventhandling.DomainEventData<?>> snapshotFilter)

Deprecated. in favor of snapshotFilter(SnapshotFilter)

Overrides:

snapshotFilter in class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

snapshotFilter

public MongoEventStorageEngine.Builder snapshotFilter(org.axonframework.eventsourcing.snapshotting.SnapshotFilter snapshotFilter)

Overrides:

snapshotFilter in class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

batchSize

public MongoEventStorageEngine.Builder batchSize(int batchSize)

Overrides:

batchSize in class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

mongoTemplate

public MongoEventStorageEngine.Builder mongoTemplate(MongoTemplate template)

Sets the MongoTemplate used to obtain the database and the collections.

Parameters:

template - the MongoTemplate used to obtain the database and the collections

Returns:

the current Builder instance, for fluent interfacing

storageStrategy

public MongoEventStorageEngine.Builder storageStrategy(StorageStrategy storageStrategy)

Sets the StorageStrategy specifying how to store and retrieve events and snapshots from the collections. Defaults to a DocumentPerEventStorageStrategy, causing every event and snapshot to be stored in a separate Mongo Document.

Parameters:

storageStrategy - the StorageStrategy specifying how to store and retrieve events and snapshots from the collections

Returns:

the current Builder instance, for fluent interfacing

build

public MongoEventStorageEngine build()

Initializes a MongoEventStorageEngine as specified through this Builder.

Returns:

a MongoEventStorageEngine as specified through this Builder

validate

protected void validate()
                 throws org.axonframework.common.AxonConfigurationException

Validates whether the fields contained in this Builder are set accordingly.

Overrides:

validate in class org.axonframework.eventsourcing.eventstore.BatchingEventStorageEngine.Builder

Throws:

org.axonframework.common.AxonConfigurationException - if one field is asserted to be incorrect according to the Builder's specifications