public void UpdateMetadata(string flowNodeInstanceId, string key, string value)
{
var evt = new MetadataUpdatedEvent(Guid.NewGuid().ToString(), AggregateId, Version + 1, flowNodeInstanceId, key, value, DateTime.UtcNow);
Handle(evt);
DomainEvents.Add(evt);
}
private void Handle(MetadataUpdatedEvent evt)
{
var instance = GetInstance(evt.FlowNodeInstanceId);
instance.Metadata.Add(evt.Key, evt.Value);
}