/// <summary>
/// Aply a change based on an event.
/// </summary>
/// <param name="e">The event to apply.</param>
/// <param name="isNew">Indication whether this is a new event (true) that needs to be added to the
/// list of uncommitted changes or not (false).</param>
private void ApplyChange(DomainEvent e, bool isNew)
{
// handle the event
HandleEvent(e);
// add event to list of uncommitted events
if (isNew)
{
_changes.Add(e as DomainEvent);
}
}
/// <summary>
/// Constructor taking parameters for initialisation.
/// </summary>
/// <param name="id">The unique Id of the aggregate.</param>
/// <param name="eventData">The event data.</param>
/// <param name="version">The current version of the aggregate for concurrency control.</param>
public EventDescriptor(Guid id, DomainEvent eventData, int version)
{
EventData = eventData;
Version = version;
Id = id;
}
/// <summary>
/// Call the appropriate handle method on the derived Aggregate class based on the event type.
/// </summary>
/// <param name="e">The event to handle.</param>
private void HandleEvent(DomainEvent e)
{
var handleMethod = this.GetType().GetMethod("Handle", new Type[] { e.GetType() });
handleMethod.Invoke(this, new object[] { e });
}
/// <summary>
/// Aply a change based on an event.
/// </summary>
/// <param name="e">The event to apply.</param>
protected void ApplyChange(DomainEvent e)
{
ApplyChange(e, true);
}