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This presentation by Hamilton Verissimo and Oren Eini show Castle Active Record - an ORM solution for .NET building on NHibernate. After an introduction, the presentation dives into various advanced topics and techniques for working with Castle Active Record.
NHibernate 2.0 was made official with the announcement of its general availability by Ayende Rahien. The announcement follows months of alphas and release candidates and now matches the features of Hibernate 3.2.
Fluent NHibernate is an API for creating NHibernate mappings programmatically instead of XML configuration files. Its goal is to reduce the difficulties faced when incorporating NHibernate in a project by providing improved readability, testing capabilities, and compile time safety.
NHibernate has grown in popularity lately with more wide-spread use because of ALT.NET and competing technologies such as the Microsoft Entity Framework. A new screen cast series called The Summer of NHibernate has been created to expose more developers to this technology.
In this virtual panel, the editors of InfoQ.com (Floyd Marinescu) and ODBMS.org (Roberto V. Zicari) asked a group of leading persistence solution architects their views on the current state of the union in persistence in the Java community.
Using a domain model is rarely as easy as just creating the actual domain model classes and then using them. Soon enough one discovers that sizable amounts of infrastructure code will also be required in support of the domain model. In this article, Mats Helander explains how to use Domain Model Management to handle this complexity in a simple way.
ActiveRecord fails the DRY principle, especially if your database doesn't follow Rails naming conventions. As well, ActiveRecord associations and validations are redundant specifications of database constraints. Bryan wants to avoid (as much as possible) the situation where he's averse to making changes to his database schema, because of the resulting effort to change his app code.
In this interview, Jimmy focuses on LINQ to SQL and ORM. Jimmy has tried to create a similar technology to LINQ to SQL in the past, but without similar results. While LINQ to SQL is a step in the right direction, .NET still lags behind other programming languages in object-relational mapping capabilities.
At The Spring Experience conference, InfoQ caught up with Patrick Linskey of BEA to discuss the current status of the Apache OpenJPA project. Linskey explains where OpenJPA came from, how it fits into the Object\Relational Mapping space, the differentiating features that OpenJPA provides, the JPA specification, and future plans for OpenJPA.
