/// <summary>
/// Create a new <see cref="EventHandlerGroup{T}"/> that combines the <see cref="IEventHandler{T}"/> in this group with
/// input handlers.
/// </summary>
/// <param name="handlers">the handlers to combine.</param>
/// <returns>a new <see cref="EventHandlerGroup{T}"/> combining the existing and new handlers into a single dependency group.</returns>
public EventHandlerGroup <T> And(params IEventHandler <T>[] handlers)
{
var processors = from handler in handlers
select _eventProcessorRepository.GetEventProcessorFor(handler);
var combindedProcessors = _eventProcessors.Concat(processors).ToArray();
return(new EventHandlerGroup <T>(_disruptor, _eventProcessorRepository, combindedProcessors));
}
/// <summary>
/// Create a group of <see cref="IEventHandler{T}"/>s to be used as a dependency.
/// </summary>
/// <param name="handlers">the <see cref="IEventHandler{T}"/>s, previously set up with <see cref="HandleEventsWith(Disruptor.IEventHandler{T}[])"/>,
/// that will form the <see cref="ISequenceBarrier"/> for subsequent handlers or processors.
/// </param>
/// <returns>an <see cref="EventHandlerGroup{T}"/> that can be used to setup a <see cref="ISequenceBarrier"/> over the specified <see cref="IEventHandler{T}"/>s.</returns>
public EventHandlerGroup <T> After(params IEventHandler <T>[] handlers)
{
var selectedEventProcessors = new IEventProcessor[handlers.Length];
for (int i = 0; i < handlers.Length; i++)
{
selectedEventProcessors[i] = _eventProcessorRepository.GetEventProcessorFor(handlers[i]);
}
return(new EventHandlerGroup <T>(this, _eventProcessorRepository, selectedEventProcessors));
}