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Large Model Problems Continue to Plague Entity Framework, NHibernate

by Jonathan Allen Follow 186 Followers on  Dec 17, 2013

Entity Framework continues to have performance problems when using larger EDMX models to generate classes. “If the EDMX only has one entity type materialization takes 840 ms […] but when the EDMX contains a richer model, for example one with 67 entity types and 92 associations, the same test takes 7246 ms to complete”.

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ORMs And Persistence Ignorance

by Roopesh Shenoy Follow 0 Followers on  Aug 29, 2013

Julie Lerman recently noted that Entity Framework can work with classes having private constructors and private property setters, which promotes persistence ignorance. We explore further.

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Hibernate adds OSGi Support

by Alex Blewitt Follow 2 Followers on  Jul 11, 2013 1

Hibernate, the popular Java ORM, has recently added OSGi support. InfoQ caught up with Brett Meyer to find out more about the challenges involved.

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The Uncertain Future of NHibernate

by Jonathan Allen Follow 186 Followers on  Jun 20, 2013 6

For many years NHibernate reigned as the premier ORM for the .NET framework and despite the successes of Entity Framework many people still consider it their first choice for new projects. But a lack of developers may severely hamper its future.

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CAST: Adding Spring Lowers the Quality of JEE Applications

by Abel Avram Follow 4 Followers on  Feb 14, 2013 25

A CAST report discloses that JEE enterprise software has lower quality when using Spring or Struts than using just Hibernate. Also, the quality degrades when Java is mixed with C or C++.

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Comparing NHibernate and Entity Framework

by Jonathan Allen Follow 186 Followers on  Jun 11, 2012 31

Developer Ricardo Peres of Portugal has published a seemingly unbiased comparison of the leading .NET ORMs: NHibernate and Entity Framework. While we recommend anyone considering both to read his article, Differences Between NHibernate and Entity Framework, we are going to tough on some of the key differences.

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LLBLGen Pro 3.5 Adds OData and SQL Server 2012 Support, Designer Improvements

by Jenni Konrad Follow 0 Followers on  Mar 24, 2012

Version 3.5 of the ORM tool LLBLGen Pro was released this week, and includes updates to Entity Framework and NHibernate functionality, designer improvements, and several updates to the runtime, such as support for OData and SQL Server 2012.

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Hibernate 4.1 Released With Improved Auditing Support

by Kostis Kapelonis Follow 0 Followers on  Feb 28, 2012 7

JBoss relases Hibernate 4.1 with improvements to the Envers module that allow for finding the database revision responsible for a change in a specific audited property.

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JBoss Releases Hibernate 4.0

by Kostis Kapelonis Follow 0 Followers on  Jan 18, 2012 2

JBoss Releases Hibernate 4.0 which comes with Multi-tenancy support, the introduction of a standard mechanism for writing Hibernate extensions, initial refactorings towards OSGI and several other cleanups.

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S#arp Lite: S#arp Architecture Simplified To Its Essentials

by Jenni Konrad Follow 0 Followers on  Nov 30, 2011 2

S#arp Lite is an effort to make S#arp Architecture more accessible to all developers; this scaled-back version includes a project template set up to connect to a database via NHibernate, a set of reusable class libraries, a base repository, and a sample project.

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Hibernate Object Mapping for NoSQL Datastores

by Rick Hightower Follow 0 Followers on  Jul 12, 2011 6

Emmanuel Bernard, the developer behind Hibernate Validator, Hibernate Search, among others, recently announced the birth of Hibernate OGM. The new framework's goal is to provide a common interface for NoSQL datastores using JPA constructs. InfoQ spoke to Bernard to find out more about the framework.

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Introducing NHibernate 3.0

by Jonathan Allen Follow 186 Followers on  Dec 12, 2010 7

NHibernate 3.0 is the first major release of the popular ORM in over a year. With the release it has changed the CLR version to .NET 3.5. This allows the creation of the QueryOver API, while replaces the string-based ICriteria expressions with strongly typed lambda expressions. This is in addition to the built-in LINQ provider.

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The Latest NHibernate Developments

by Abel Avram Follow 4 Followers on  Aug 12, 2010 1

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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LLBLGen Pro 3.0 Now Supports Multiple Persistence Frameworks

by Abel Avram Follow 4 Followers on  Jun 16, 2010 1

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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Debate: Comparing NHibernate and EF 4

by Abel Avram Follow 4 Followers on  Jan 12, 2010 11

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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