In the previous post we looked at the common theory of caching in the NHibernate context. As you noted, the ORM has a well thought-out cache system for avoiding repeated queries to a database without modifying business logic of a destination application. All that you need to do is to config of the ORM. Cool? Definitely. In this post we look at the possibilities of caching data in the Entity Framework. And also to describe the good practices of caching. Read more

So, in the previous post we have looked at a practical example of implementing caching in a web application. And despite the fact that we have achieved our goal,  we have left open several questions, which forced us to doubt our approach. In this post we’ll find the right answers to these questions, talk about general concepts of caching in ORM and consider how they should NHibernate. Read more

In the previous post I’ve already touched upon the issue of caching using ORMs. But since, it’s pretty deep and breathtaking topic we will continue to dive into the details. In this series of posts we’ll look at real-world scenario of caching in a web application (all patterns and practices also apply to the development of other kinds of applications), the problems confronting the developer, as well as opportunities offered by NHibernate & Entity Framework to cache data.
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If you have ever used a cache for your web applications, you probably know about CacheDependency. If not, then don’t worry. It’s just a class that allows you to track changes in a source whose data you cache. Strictly speaking, tracking logic is implemented by derived classes. For example, for MS SQL Server it’s SqlCacheDependency class. This concept has one serious problem. That is breaking of an abstraction level created by an ORM. Let’s discuss it in this post.
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