public Task <IReadOnlyList <IEvent> > FetchStreamAsync(Guid streamId, long version = 0, DateTime?timestamp = null, long fromVersion = 0, CancellationToken token = default)
{
var selector = _store.Events.EnsureAsGuidStorage(_session);
var statement = new EventStatement(selector)
{
StreamId = streamId, Version = version, Timestamp = timestamp, TenantId = _tenant.TenantId, FromVersion = fromVersion
};
IQueryHandler <IReadOnlyList <IEvent> > handler = new ListQueryHandler <IEvent>(statement, selector);
return(_session.ExecuteHandlerAsync(handler, token));
}
public async Task <IReadOnlyList <IEvent> > FetchStreamAsync(Guid streamId, long version = 0, DateTimeOffset?timestamp = null, long fromVersion = 0, CancellationToken token = default)
{
var selector = _store.Events.EnsureAsGuidStorage(_session);
await _tenant.Database.EnsureStorageExistsAsync(typeof(IEvent), token).ConfigureAwait(false);
var statement = new EventStatement(selector)
{
StreamId = streamId, Version = version, Timestamp = timestamp, TenantId = _tenant.TenantId, FromVersion = fromVersion
};
IQueryHandler <IReadOnlyList <IEvent> > handler = new ListQueryHandler <IEvent>(statement, selector);
return(await _session.ExecuteHandlerAsync(handler, token).ConfigureAwait(false));
}
public async Task Load(EventRange range, CancellationToken token)
{
if (_session == null)
{
reset();
}
_cancellation.CancelAfter(5.Seconds());
// There's an assumption here that this method is only called sequentially
// and never at the same time on the same instance
_statement.Range = range;
range.Events = await _session.ExecuteHandlerAsync(_handler, token);
}
public async Task Load(ShardName projectionShardName, EventRange range, CancellationToken token)
{
if (_session == null)
{
reset();
}
_cancellation.CancelAfter(5.Seconds());
// There's an assumption here that this method is only called sequentially
// and never at the same time on the same instance
_statement.Range = range;
try
{
range.Events = await _session.ExecuteHandlerAsync(_handler, token);
}
catch (Exception e)
{
throw new EventFetcherException(projectionShardName, e);
}
}
