InfoQ Homepage EJB Content on InfoQ
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InfoQ Article: An Introduction to JBoss Seam 1.1
JBoss Seam is a new full-stack web application framework that unifies and integrates Ajax, JSF, EJB2, Portlets, and BPM. Seam 1.1 released last week, and InfoQ has published an introduction to Seam, explaining what Seam can do with a HelloWorld example.
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Job Trends: EJB, Spring, and Hibernate
Rick Hightower has posted a few graphs from Indeed's Job Trends comparing Spring against EJB3 and various ORM tools against each other. The graphs show that Spring is steadily gaining while EJB3 (and EJB overall) is not. Similarly, Hibernate continues to dominate the ORM field in job postings.
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On migrating from Python & Zope to Java with EJB 3 & JBoss SEAM
Nuxeo has announced that the next version of its ECM product will be based entirely on Java, using JBoss SEAM, EJB 3, and JBoss. The move is interesting for a company claiming to be "the biggest Zope-focused company in the world." InfoQ spoke to Nuxeo's engineering team to find the why and how of their move.
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Interview: Florent Benoit on the EasyBeans EJB3 Container and OSGi Support
The EasyBeans EJB3 container project recently announced support for deploying the container as a set of OSGi modules. InfoQ sat down with Florent Benoit of Bull R&D to discuss this new feature as well as how EasyBeans compares to other EJB3 implementations such as JBoss and Gernonimo.
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Spring and EJB 3 Compared
devx is hosting an article comparing Spring 2 and EJB 3 focusing on support for persistence, transaction management, and statefulness, concluding that support is mostly the same with but with EJB being slightly better at handling state.
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InfoQ Article: Grails + EJB Domain Models Step-by-Step
Grails could bring Ruby on Rails style productivity to the Java platform, built on the Groovy language and fully integrated with Java. In this tutorial, Jason Rudolph shows how to use Grails to quickly build a functional website around an existing EJB 3 entity bean domain model with very little code.
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Mastering EJB 3.0 is Out
The fourth edition of the best seller Mastering EJB is now launched and as per prior tradition, is available for free download on TheServerSide.com. The new version is updated for EJB 3.0 and also covers tips and techniques related to deployment, and integration.
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InfoQ Article: EJB 3 Essential Glossary
InfoQ is hosting an EJB 3.0 glossary of new terms and API elements introduced in EJB 3. It explains buzzwords like Inversion of Control (IoC), Configuration by Exception, POJO, POJI, Dependency Injection etc, etc. The glossary is an ongoing work in progress. Updates will continue to be made to it.
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Summary of TSS Future of Enterprise Java Panel
Cameron Purdy, Rod Johnson, Bruce Snyder, Bruce Tate, Floyd Marinescu and Ari Zilka participated in an annual 'what is the future of enterprise java?' panel at the last TSS Symposium, which was just published in video by TSS. The panel covered hard issues such as 'will EJB 3 matter?', open source Java, web 2.0, scripting languages. Read InfoQ's summary.
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Refactoring the EJB APIs
Artima has interviewed EJB 3 spec lead Linda DeMichiel on how EJB was refactored for simplicty between EJB 2 and EJB 3, including three separate spec documents, simplifying EJB interfaces, annotations and when to use them, and dependency injection.
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Implementing SOA with JEE 5 and JBI Paper Published
Sun has published a technical article, "Implementing Service-Oriented Architectures with the Java EE 5 SDK", that shows how to combine custom business logic with JBI, JEE, BPEL and a SOAP binding component to implement a service-oriented composite application.
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Book: Java Transaction Design Strategies Published
InfoQ's first book, Java Transaction Design Strategies has been published! The book is available for free download and the published print version is available for $22.95. Written by IBM architect and nofluff speaker Mark Richards, the book is one of the very few works on transactions, and definitely one of the most practical.
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Pitchfork: EJB 3 Interception & Injection to WebLogic using Spring
Spring 2.0 is now being used by BEA to provide EJB 3 dependency injection and interception, the result of Pitchfork, a new Spring add-on project by BEA and Interface21 that allows Spring to provide JSR 250 dependency injection and EJB style interception. WebLogic users can also use additional Spring features over the EJB spec, and Pitchfork may be used by other Java EE servers in the future.
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Open JPA: A real competitor to Hibernate emerging
BEA will be open sourcing a large part of the formerly commercial Kodo persistence engine from SolarMetric into the Apache OpenJPA project. Going forward, the commerical Kodo and WebLogic will be built on top of OpenJPA which will recieve a large commitment of resources from BEA for further development. OpenJPA may become a viable alternative to Hibernate this year.
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Article: Brasilian National Healthcare System
This casestudy takes a detailed look at the implementation and architecture behind the Brasilian National Healthcare System, a 2M line of code, truly mission critical Java application. Lessons learned, best practices, and details down to the interaction diagram are covered.