InfoQ Homepage ORM Content on InfoQ
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Eclipse Virgo Released
The inaugural version of Eclipse Virgo was released today, including the Eclipse Gemini Web component. Despite these being the first release under the Eclipse moniker, they are the natural evolution of the well-regarded Spring DM Server. Read on to find out what's important about this release.
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The Latest NHibernate Developments
The latest NHibernate developments include: the release of NHibernate 3.0.0 Alpha 1, NHibernate Profiler supporting NHibernate 3.0, and HQL Language Service for Visual Studio.
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WebSphere 7 Feature Pack Supports OSGi-based Application Deployment and SCA Integration
WebSphere Application Server V7 Feature Pack for OSGi Applications and Java Persistence API 2.0 offers a standards-based implementation of OSGi Blueprint Container specification and JPA 2.0. It also provides an optional feature to deploy and manage applications as versioned OSGi bundles. IBM recently announced the GA release of the feature pack which is based on Apache projects Aries and OpenJPA.
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DataMapper Reaches 1.0 Milestone
DataMapper, an Object Relational Mapper (ORM) for Ruby, arrived at a milestone recently reaching 1.0 status. The release, announced during RailsConf 2010, and coinciding with Dirkjan Bussink's presentation at the conference on the subject.
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LLBLGen Pro 3.0 Now Supports Multiple Persistence Frameworks
LLBLGen Pro is an ORM tool which supports multiple persistence frameworks: LLBLGen Pro Runtime, Entity Framework, NHibernate and LINQ to SQL. Other new features are: support for .NET 4.0, model-first or database-first development mode, model view, project validation.
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OSGi DevCon London
Last week saw the first OSGi DevCon London, held in conjunction with JAX London in Hammersmith's Novotel. Topics included features from the upcoming OSGi Enterprise Expert Group publication, using and testing OSGi in the cloud, accessing objects through JPA on an OSGi system and how modularity can defeat complexity brought on by exponential software growth.
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Debate: Comparing NHibernate and EF 4
Recently, a post by Oren Eini (a.k.a. Ayende Raheim) touched off a debate around the respective merits and capabilities of NHibernate and Entity Framework 4.0, two .NET-based Object/Relational Maping frameworks. InfoQ explored this debate in more detail to understand some of the perspectives which were given.
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Spring 3.0: Java 5 Required, Adds New Expression Language and REST Support
A new version of the Spring Framework, version 3.0, was released today. InfoQ spoke with Juergen Hoeller, technical lead of the Spring Framework project, to learn more about this release and the changes that it brings to the Spring portfolio.
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ORM Profiling Tools for the .NET Platform
Sadly the terms “ORM” and “performance problems” often travel together. By hiding the underlying SQL from the developers, ORMs can offer a huge productivity boost. Unfortunately they also make it easy to generate ridiculously bad queries without realizing it. And without stored procedures to cross reference, finding the offending code without an ORM-specific profiler can be quite tricky.
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ADO.NET Entity Framework Providers for Oracle
Microsoft’s vision for .NET is a wide one. In addition to support for all programming languages, MS wants to bring together all communication frameworks and data storage engines. While WCF is making headway for standardizing communication APIs, their universal data access model Entity Framework is lagging behind. Much is this is due to lack of direct vendor support from companies like Oracle.
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Simplify SQL Migration Scripts with SQrbL
Managing SQL-based scripts can become a nightmare with time. Rails solved this with ActiveRecord Migration. Sam Livingston-Gray wrote a small standalone Ruby tool to generate hierarchical migration script. Based on the fact that SQL scripts can become very verbose and duplication-prone, Sam started SQrbL which is a mix of SQL and Ruby.
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Fluent NHibernate Has Been Released as 1.0 RC
James Gregory, the owner of the Fluent NHibernate project, has announced his project has reached the 1.0 milestone and it is currently a Release Candidate.
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NHibernate LINQ Provider Released
NHibernate Linq 1.0 has been released. Based on the stable provider from NHibernate Contrib, NHibernate Linq 1.0 is a LINQ provider that supports most operations available through the NHibernate criteria query API.
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23 .NET Open Source Projects
Eric Nelson, a Developer Evangelist for Microsoft and Technical Editor of MSDN UK Flash, has compiled a list of 23 .NET open source projects mostly based on recommendations sent by UK developers. Other great projects did not make it into the list, while Microsoft’s contribution include: ASP.NET MVC, DLR, IronRuby, IronPython, MEF.
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Entity Framework CTP for VS 2010
Not everything planned for Visual Studio 2010 made it in beta 1. This includes some important features for ORM fans. Entity Framework CTP 1 includes support for Self Tracking Entities, POCO Templates, and support for EDMX-free coding.