InfoQ Homepage ORM Content on InfoQ
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IdeaBlade announces DevForce EF beta for building Rich Internet Applications
Recently IdeaBlade announced DevForce EF which builds upon the Microsoft Entity Framework and will provide support for Silverlight.
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Compass 2.0: Simplification, integration, and performance improvements
The Compass project, an open source project based on Lucene which aims to simplify the integration of search into Java applications, recently released version 2.0. InfoQ spoke with Compass founder Shay Banon to learn more about this release and about what Compass provides to the Java community.
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WebDSL: Lessons Learned from Creating a DSL
In this article, Eelco Visser summarizes his approach to design WebDSL, a domain-specific language for developing dynamic web applications with a rich data model with a target architecture based on JBoss's Seam. He discusses paradigms and challenges of Language Engineering while sharing some of the lessons he learned along the way.
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Presentation: Voca, UK's largest payment processing engine running Spring
In this presentation from QCon London 2007, William Soo and Meeraj Kunnumpurath discuss the Voca transaction processing system architecture, the previous Mainframe-based architecture, architectural challenges and requirements, the new Spring and J2EE-based architecture, upcoming challenges for Voca, and technologies to watch for in the future.
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DataNucleus Launched as Successor to Java Persistence Platform JPOX
The open source Java persistence platform JPOX has become DataNucleus for its future direction, due to the significant changes in scope of the project since its initiation. The baseline product DataNucleus AccessPlatform, provides persistence to RDBMS, db4o, XML, LDAP and Excel datastores via JDO or JPA APIs.
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Presentation: JRuby: Not Just Another JVM Language
In this presentation from QCon San Francisco 2007, JRuby project lead Charles Nutter discusses the Ruby and JRuby featureset, the JRuby compiler, calling Java from JRuby and vice versa, programming Swing with JRuby, JRuby web applications, JRuby on Rails, persistence, build automation, Test-Driven Development and Behaviour-Driven Development.
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NHibernate 2.0 Offers Many New Features
NHibernate 2.0 Alpha has been released this week. The current 2.0 release is the first step to the feature set of Hibernate 3.2.6, many classes have been completely rewritten and lots of features have been added.
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Insights: You don't need your DSL to be English-like
There is a widespread opinion that a good DSL has to be English-like. Dave Thomas advocates against such approach asserting that DSL are not about getting as close as possible to natural languages and that having this as a guiding principle of DSL design can be rather detrimental. He also highlights what he believes is important in DSL design and provides some examples of successful DSL.
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Panel: Java Object Persistence: State of the Union
In this 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.
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Continuous Integration And Version Control for Databases
After asserting that one must, as a rule, always version their database work, Scott Allen detailed an approach to making the best of versioning databases. Allen presented a comprehensive, practical approach to creating a baseline, using change scripts to manage schematic revisions, controlling programmatic database objects, and handling branching and merging.
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Interview: Charles Nutter discusses JRuby
JRuby project lead Charles Nutter discusses how he got involved with JRuby, Sun's involvement with JRuby, how JRuby fits into enterprise-level web applications, the possibility of a friendly fork of the OpenJDK source code, reasons for switching to JRuby, the future of JRuby, Spring and JRuby, and the Ruby community as a whole.
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Presentation: Using AOP in the Enterprise
In this presentation from QCon San Francisco 2007, SpringSource CTO and AspectJ project lead Adrian Colyer discusses where Aspect-Oriented Programming (AOP) should be used, practical applications of AOP in enterprise situations such as Hibernate exception translation and automatic operation retry on nonfatal exceptions, and AOP mechanisms in Spring 2.5.
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Up and Running with SQLite on .NET in 3 Minutes
SQLite is an open source database that has been growing in popularity. It's footprint is small and is used in a wide-variety of types of applications.
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JPA Frameworks Compared
java.net is hosting an article written by Sharad Acharya titled "Java Persistence Framework: Which, When, and What?" that compares four popular persistence frameworks: CMP Entity EJBs, JPA, Hibernate, and TopLink. Acharya discusses each technology and summarizes his findings in a matrix.
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Presentation: Linda DeMichiel on EJB 3 & JPA
In this talk from last year's QCon London, Linda DeMichiel, who has been leading the EJB spec since the 1.0 days, presents EJB3 with a focus on JPA. The talk covers key aspects of the Java Persistence API and its role in the development of EJB 3.0 apps, including use of the EntityManager API, persistence units and persistence contexts, queries, object/relational mapping, etc.