/// <summary>
/// Create the projection from the attribute linked to the function parameter
/// </summary>
/// <param name="attribute">
/// The attribute describing which projection to run
/// </param>
public Projection(ProjectionAttribute attribute,
IEventStreamSettings settings = null,
INotificationDispatcher dispatcher = null,
IProjectionSnapshotReader snapshotReader = null,
IProjectionSnapshotWriter snapshotWriter = null)
{
_domainName = attribute.DomainName;
_entityTypeName = attribute.EntityTypeName;
_instanceKey = attribute.InstanceKey;
_projectionTypeName = attribute.ProjectionTypeName;
if (null == settings)
{
_settings = new EventStreamSettings();
}
else
{
_settings = settings;
}
_connectionStringName = _settings.GetConnectionStringName(attribute);
if (null == _projectionProcessor)
{
_projectionProcessor = _settings.CreateProjectionProcessorForEventStream(attribute);
}
if (null == dispatcher)
{
// Create a new dispatcher
_notificationDispatcher = NotificationDispatcherFactory.NotificationDispatcher;
}
else
{
_notificationDispatcher = dispatcher;
}
if (null != snapshotReader)
{
_snapshotReader = snapshotReader;
}
if (null != snapshotWriter)
{
_snapshortWriter = snapshotWriter;
}
}
public ProjectionJob(
IEventStoreClient client,
IDependencyInitializer initializer,
IProjectionOptionsFactory optionsFactory,
IProjectionProcessor <TProjection> processor)
{
this.jobDependencies = initializer;
this.processor = processor;
var options = optionsFactory.GetOptions <TProjection>();
subscription = client.SubscribeToStreams(
ConsumerGroup.GetAsAutoScalingInstance(options.Name),
SubscriptionStartOptions.FromBegining,
OnProcessEventsAsync);
}
