How to create EJB project in NetBeans 7.0?

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NetBeans IDE 7 CookbookWelcome to the NetBeans Cookbook. NetBeans is a Java Integrated Development Environment, IDE, which enables fast application development with the most adopted frameworks, technologies, and servers. also read: Java EE Tutorials EJB Interview Questions EJB 3 Web Services Annotation and Dependency Injection in EJB 3 Query API in EJB 3 Different than other […]

Stateless Session Beans in EJB 3.0

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This article is based on EJB3 in Action, Second Editionand the book will release on October 2011. It is being reproduced here by permission from Manning Publications. Manning publishes MEAP (Manning Early Access Program,) ebooks and pbooks. MEAPs are sold exclusively through Manning.com. All print book purchases include an ebook free of charge. When mobile […]

How to use CDI with EJB 3.0?

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This article is based on EJB3 in Action, Second Edition and the book will released on October 2011. It is being reproduced here by permission from Manning Publications. Manning publishes MEAP (Manning Early Access Program,) ebooks and pbooks. MEAPs are sold exclusively through Manning.com. All print book purchases include an ebook free of charge. When […]

Managing transactions in EJB 3.0

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Transaction represents a group of activities that must be performed as a single work unit. This clarifies that a transaction is complete if and only if all the work items within a work group results in success. If any of the work items fails, then the transaction as a whole will be treated as a […]

Building an EJB 3.0 Persistence Model with Oracle JDeveloper

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EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g EJB (Enterprise JavaBeans) 3.0 entity beans is a commonly used database persistence technology. EJB 3.0 has simplified the development of EJBs with an annotations-based APithat does not require remote/local interfaces, home/local home interfaces, or deployment descriptors. Developing entity EJBs requires an application server and a relational database, and optionally a […]

Annotations and Dependency Injection in EJB 3.0

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This Article presents two important new features of EJB 3.0 which is bundled with Java EE 5.0 specification, which are Annotations and Dependency Injection. The solid reason for this article is , it will give us an idea how these features are used, so on their encounter in other articles of EJB3.0, we can understand […]

EJB 3.0 Entity Manager

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Entities are classes that need to be persisted; their state is stored outside the application, typically in a relational database. Unlike session beans, entities do not have business logic other than validation. As well as storing such entities, we want to query, update, and delete them. also read: Java EE Tutorials EJB Interview Questions EJB 3 Web Services […]

EJB 3.0 and WebServices

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This article discusses how an enterprise bean can act as a Web-Service component. Since Web-Services itself is a vast technology, the first part of the article discusses more about Web-Services. Specifically, the first part of the article discusses what Web-Services are, its unique features among other related technologies, its architecture, and the various base components […]

Hibernate Vs EJB 3.0

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Originally published in DeveloperIQ magazine What is CMP and BMP in EJB? So, why is it that Entity beans alone were found wanting and the specification keeps on changing? Entity beans are of two types. CMP & BMP. CMP stands for Container-Managed Persistence and BMP stands for Bean-managed persistence. Theoretically, the EJB specification does not […]

The Query API in JPA (EJB 3.0)

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Introduction One of the disadvantage of locating the entity objects using the EntityManager.find() and EntityManager.getReference() methods is, we cannot specify any powerful search criteria for searching the entity objects. All we can provide is the primary key to request for a particular object. Another fact is the class name of entity must be known. The […]

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