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Java development is at a crossroads. The open standards have done lot of good for the Java platform and language, but they have brought in some problems too. Developers are often drenched in the complexities that surround Java development. Worse yet, these complexities are so overwhelm...
When I started working with Java, I mentioned my move to a colleague of mine, a Microsoft devotee. He wasn't willing to move to the Java platform until supporting integrated development environments (IDEs) were as powerful and easy to use as Visual Basic. Although at the time nothing ...
In EJB/CORBA integration, complexity can range from simple to complex and depends in part on the direction of the communication. From EJB to CORBA, communication is relatively simple because the EJB bean invokes CORBA as it does any external resource. CORBA-to-EJB communication, h...
Are you tired of going through the cumbersome process of creating local/remote component and home interfaces for your EJBs, as well as the necessary WebLogic XML deployment descriptors? Wouldn't it be wonderful to develop only the particular EJB bean file and have another tool...
The standard EJB 2.0 container- managed persistence (CMP) query language known as EJB QL allows users to retrieve container-managed entity beans, subject to constraints that are described using the same object-relationship model that was constructed to describe beans in EJB deployme...
Working as a BEA consultant, I've helped customers successfully design and deploy applications on various versions of the WebLogic Server (WLS). BEA has been supporting container-managed persistence (CMP) entity beans since EJB 1.0, and a few of our customers have used them. Unfortu...
One of the toughest challenges of any software development architecture is reconciling the object-oriented paradigm with that of the relational database. If this isn't done properly, the object layer will become too closely tied to the database schema and any change to the database sch...
This is the second in a series of three articles discussing the clustering capabilities of BEA WebLogic Server 6.1 (WLS). This month we discuss replica-aware stubs, their impact on a clustered system, and how they're used with EJBs.
Entity Enterprise JavaBeans (EJBs) are a convenient means to map persistent data to Java components. Container-Managed persistence (CMP) provides rapid development since the EJB container automatically handles loading and storing the persistent data. However, along with their many...