Title : How to create EJB project in NetBeans 7.0?
Author : PacktPub
Date : Mon Jun 13th, 2011

This book does require a minimal knowledge of Java platform, more specifically the language ifself. But the book might as well be used by either beginners, who are trying to dip their toes in new technology, or more experienced developers, who are trying to switch from other IDEs but want to decrease their learning curve of a new environment. NetBeans integrates so many different technologies, many of which are present in this book, that it is beyond the scope of this book to cover all of them in depth. We provide the reader with links and information where to go when further knowledge is required.

Title : Spring Roo and JPA Entities
Author : ManningPublications
Date : Wed Apr 20th, 2011

In this article, we'll tell you how to relate entities to each other using the Roo shell. You'll use the field reference and field set commands, which establish JPA relationships via collections and references. We will explore various relationships, including one to many, many to many, and inheritance hierarchies. Let's begin by discussing the concept of relationships within JPA.

Title : Stateless Session Beans in EJB 3.0
Author : ManningPublications
Date : Wed Apr 6th, 2011

Stateless session beans are probably the most common bean type used in an application. A stateless session bean doesn't maintain a conversational state. This means that session beans tasks must be completed in a single method call. This does not limit a stateless session bean to containing only one method. To the contrary, a stateless session beans usually contain at least several closely related business methods. Of the session bean types, stateless session beans have the best performance characteristics. To understand why, take a close look at figure 1 that shows a high-level schematic of how stateless session clients typically use beans.

Title : Using CDI with EJB 3.0
Author : ManningPublications
Date : Wed Apr 6th, 2011

CDI plays a vital role by providing robust, next-generation, annotation-driven dependency-injection to all Java EE components including EJB 3. In this article, we will show you some of the most common ways CDI is used with EJB 3 namely, as a more robust replacement to JSF-managed beans and complementing EJB with components that are not in the business tier and do not need to use EJB services directly.

Title : Working with Message-Driven Beans
Author : ManningPublications
Date : Tue Apr 5th, 2011

Message-driven beans (MDBs) are EJB components designed to consume asynchronous messages. Although MDBs are intended to handle many different kinds of messages, we'll discuss MDBs that process JMS messages because that is what MDBs are most commonly used for.

Title : Struts 2.0 and JPA Integration
Author : AnuBakshi
Date : Mon Feb 28th, 2011

Struts 2.0 is the popular Open Source Presentation Tier framework developed by Apache Group. It is based on MVC Model 2 design pattern. Dispatcher Filter is the front controller for the struts2 based applications. Struts 2.0 has simplified web development for its users by introducing POJO based actions, interceptors, flexible validation and support for many different result types. Struts can be used to build the user interface tier of the enterprise application. Whereas, any of the popular ORMs like Hibernate, JPA, iBatis can be used for the persistence tier of the application. Struts2 provides easy integration with these persistence tier frameworks. This article demonstrates the integration of Struts 2.0 applications with the Java Persistence API (JPA). The concept is explained with the help of a sample application. Knowledge of JPA and Struts 2.0 is the prerequisite for this article.

Title : Securing EJB Applications
Author : Raja
Date : Tue Oct 26th, 2010

In this article, we will see the various aspects in securing an EJB Application. Security is vital not only for an enterprise application but also for any kind of application. It is essential to identify the system or the users accessing the applications and to provide access or denial for resources within the application based on some criteria. The point is that not every user should be given the rights to access sensible data and there must be some identification mechanism to distinguish this boundary. EJB specification for security falls in Declarative and Programmatic mode, the EJB Container owns the responsibility of establishing security for enterprise beans in the former mode whereas the application developer has to embed security specific code in the enterprise bean in the latter mode.

Title : EJB Interview Questions
Author : JavaBeat
Date : Fri Feb 13th, 2009

Enterprise JavaBeans (EJB) is a managed, server-side component architecture for modular construction of enterprise applications. The EJB specification is one of several Java APIs in the Java Platform, Enterprise Edition. EJB is a server-side model that encapsulates the business logic of an application. The EJB specification was originally developed in 1997 by IBM and later adopted by Sun Microsystems (EJB 1.0 and 1.1) and enhanced under the Java Community Process as JSR 19 (EJB 2.0), JSR 153 (EJB 2.1) and JSR 220 (EJB 3.0).

Title : Using Enterprise Beans in Spring Environment
Author : Christy
Date : Wed Oct 24th, 2007

Enterprise Java Beans (EJB) can be used extensively in Spring's environment. In this article, we will know about the transparent support available in Spring for using the Stateless and the Stateful Session Beans in Spring.The pre-requisite for this article is some basic knowledge in Spring which can be got by reading the article in javabeat Introduction to Spring Web Framework.

1

Related Articles