NHibernate has the 1.2.0 GA version, also it’s preparing to the 2.0 version that will have many ports from Hibernate 3.2.5 GA for Java.

At this time many changes were made to the NHibernate Core, big re-structurations to get into the new features.

Some features of 2.0 version:

StatelessSession: IStatelessSession it’s the [...]

At chat with Fabio Maulo, he tell me about the goodness of use Named Queries with NHibernate and that it’s the reason for this post.

What is Named Query ? It’s a Query that are defined at mapping files and have a unique name, could be
in HQL or Native SQL.

A HQL named query [...]

In the next NHibernate release will be available this feature ported by Fabio Maulo (key developer at NHibernate project), now it’s partial ready to test at trunk. What it does? In orden to get a NHibernate session without the first level cache we must use IStateless session interface (similar syntax to [...]

Fabio Maulo, important developer at NHibernate team, always was contributed with patchs to NHibernate, now it’s porting many features from Hibernate 3.2.5. GA -you can see here and here. Now go for Hibernate Statistics

This it’s the best part of the post, when calculate the cache hit-ratio:

double queryCacheHitCount = stats.getQueryCacheHitCount(); [...]

In this postwe talking about StatelessSession the new feature of NHibernate 2.0.0, so another feature available at trunk (port of Hibernate too) are the EventListeners. With them we can intercept actions before or after achieve it: I.e. a Save, Update, Load, Flush and others.

At this example we gonna define the EventListener make the [...]