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    <p>I have been working a a similar situation, where I just want to cache specific elements, and want these elements to be loaded once on start up, and kept in cache, until the application is shut down. This is a read only cache, and is used to populate a list of countries, so that a user can select their country from the list.</p> <p>I used fluentNhibernate Mappings, and defined Country my class with Cache.readonly() </p> <pre><code>public class CountryMap : ClassMap&lt;Country&gt; { public CountryMap() { Schema("Dropdowns"); Cache.ReadOnly(); // Class mappings underneath } } </code></pre> <p>My user class map looks like this:</p> <pre><code>public class UserMap : ClassMap&lt;User&gt; { Id(x =&gt; x.Id).Column("UserId"); Map(x =&gt; x.FirstName); Map(x =&gt; x.LastName); References(x =&gt; x.Country) .Column("CountryId"); } </code></pre> <p>I manually configure Fluent Nhibernate to use Second level cache. So in my fluent Confuguration I have:</p> <pre><code>var sessionFactory = Fluently.Configure() .Database (...) // set up db here .Mappings(...) //set up mapping here .ExposeConfiguration(c =&gt; { // People advice not to use NHibernate.Cache.HashtableCacheProvider for production c.SetProperty("cache.provider_class", "NHibernate.Cache.HashtableCacheProvider"); c.SetProperty("cache.use_second_level_cache", "true"); c.SetProperty("cache.use_query_cache", "true"); }) .BuildSessionFactory(); </code></pre> <p>I have checked in SQL profiler, and when I get a list of countrys for a user, the are loaded once, and I get cache hits after every other request. The nice thing is that when displaying the users country name, it loads from the cache, and does not make a request to the database. I got some tips from this posting by <a href="http://web.archive.org/web/20100918095719/http://blogs.hibernatingrhinos.com/nhibernate/archive/2008/11/09/first-and-second-level-caching-in-nhibernate.aspx?" rel="nofollow noreferrer">Gabriel Schenker</a>. Hope that helps? If you found a better/proper way, please let me know? Thanks!</p>
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    1. USDai Bok
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    1. COGood answer! I've done what you did successfully too. I prefer Ayende's NhProf for profiling, much better than SQL profiler, but it's not free (there is a trial) and it's NHibernate specific.
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      1. USJames Allen
    2. COYip, I have seen some screensots of NHProf, looks good. Might give it a try before we go live.
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    3. COI now use nhprof! it is great help!
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