NHibernate has a lot of great new features. One of which is support for events.
However, if you are using Castle ActiveRecord you can't specify these things in the configuration like you normally could and must instead roll up your sleeves and do it programatically.
There are 2 hooks in ActiveRecord that we can use to accomplish our goal.
The first is SessionFactoryHolderCreated which will notify you that the thing that holds the NHibernate ISessionFactory is ready. The next is RootTypeRegistered which happens after the active record configuration has been turned into NHibernate configuration.
Here is a simple example
IConfigurationSource source = ConfigurationSettings.GetConfig("activerecord") as IConfigurationSource;
ActiveRecordStarter.SessionFactoryHolderCreated += (holder) => {
holder.OnRootTypeRegistered += (sender, rootType) => {
var mholder = sender as ISessionFactoryHolder;
var nhConfig = mholder.GetConfiguration( rootType);
nhConfig.EventListeners. PreUpdateEventListeners =
new NHibernate.Event. IPreUpdateEventListener[] {new MyEventListener()};
};
};
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