/// <summary>
/// Raises the given domain event
/// </summary>
/// <typeparam name="T">Domain event type</typeparam>
/// <param name="domainEvent">Domain event</param>
public void Raise <T>(T domainEvent) where T : IDomainEvent
{
//Get all the handlers that handle events of type T
IHandles <T>[] allHandlers = (IHandles <T>[])_resolver.GetService(typeof(IHandles <T>[]));
if (allHandlers != null && allHandlers.Length > 0)
{
IHandles <T>[] handlersToEnqueue = null;
IHandles <T>[] handlersToFire = allHandlers;
if (_dbState.HasPendingChanges())
{
//if there is a transaction in progress, events are enqueued to be executed later
handlersToEnqueue = allHandlers.Where(h => h.Deferred).ToArray();
if (handlersToEnqueue.Length > 0)
{
lock (_pendingHandlers)
foreach (var handler in handlersToEnqueue)
{
_pendingHandlers.Enqueue(() => handler.Handle(domainEvent));
}
handlersToFire = allHandlers.Except(handlersToEnqueue).ToArray();
}
}
foreach (var handler in handlersToFire)
{
handler.Handle(domainEvent);
}
}
}
private void FlushOrClear()
{
if (!_dbState.HasPendingChanges())
{
Flush();
}
else
{
Clear();
}
}