Hm, I used the current movement in this area to convert my IInterceptor int
an ILoadEventListener.
My IInterceptor was also injected a service, and even though it is advised
against in the docs, I inject my service ito the event listener as well (the
service and the interceptor/loadevent form a conceptual unit). Do you think
this is a bad practice, if so, how could I circumvent this?
public class DiscountLoadListener : IDomainLoadEventListener //
markerinterface
{
private readonly IDiscountProviderService service;
private readonly ILogger logger = new NullLogger();
public DiscountLoadListener(IDiscountProviderService service,
ILogger logger)
{
if (service == null) throw new ArgumentNullException("service");
this.service = service;
this.logger = logger;
}
public void OnLoad(LoadEvent theEvent, LoadType loadType)
{
var entity = theEvent.InstanceToLoad as IDiscountable;
if (entity == null) return;
var provider = service.GetDiscountProvider(entity);
if (provider == null) return;
entity.SetDiscount(provider);
logger.Debug(string.Format("Article {0} with key {1} received a
discount.", entity.Name, entity.Key));
}
> On Wed, Mar 11, 2009 at 10:43 PM, Tuna Toksoz <[email protected]> wrote:
> hmmm
>
> ok, use IConfigurationContributor.
>
>
> http://tunatoksoz.com/post/NHibernate-Integration-Facility-IConfigurationContributor.aspx
>
> And modify the configuration with your very own interceptor.
>
I would like to append these listeners using the IConfigurationContributor,
but I don´t know how to tell my factory or facility about them. Do you have
an example...?
public class DomainConfigurationContributor : IConfigurationContributor
{
private readonly IList<ILoadEventListener> loadListeners;
public DomainConfigurationContributor(IKernel kernel)
{
loadListeners = new
List<ILoadEventListener>(kernel.ResolveAll<IDomainLoadEventListener>())
{new DefaultLoadEventListener()};
}
/// <summary>
/// Modifies available <see
cref="T:NHibernate.Cfg.Configuration" /> instances.
/// </summary>
/// <param name="name">Name of the session factory</param>
/// <param name="config">The config for sessionFactory</param>
public void Process(string name, Configuration config)
{
config.EventListeners.LoadEventListeners = loadListeners.ToArray();
}
}
public interface IDomainLoadEventListener : ILoadEventListener { }
2009/3/11 Tuna Toksoz <[email protected]>
> I need to improve the documentation, the most unfunny part :)
>
I know, but if you think I could help with it (formatting, cooking up an
example, etc...), go ahead and tell me :) - Problem is, my domain knowledge
is ... well you know how it is. Just want to show my gratitude.
--
Jan
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