WSRP is an open standard proposed by OASIS for several years. The spec now is sponsored by a number of
big names like IBM and BEA. There are currently two active implementation of the spec. One is wsrp4j from
Apache foundation (still a incubator project, been developed since 2002). The other one is a subproject of
dev.java.net Open-Portal.
I have been exposed and done lot of development on the Apache's wsrp4j project. Thus, in this guide I will
mainly discuss wsrp4j implementation.
At this point, wsrp4j project is still under heavy development and re-construction. It is almost impossible
to get the trunk snapshot in the project repository and make it work without pulling all your hair out to figure
out how to set it up properly. This mostly caused by the lack of documentation and support from its developers.
Still, there is a stable (enough) revision which we can use to make a perfect wsrp4j environment.
The wsrp4j revison I use here is 440430 along with pluto portal 1.0.1 release for setting up a producer.
Jetspeed 2.1 (latest version currently) will be used as a container for wsrp4j consumer (wsrp4j-proxyportlet).
Of course, you can use pluto to setup wsrp4j consumer as well. But that is very easy to do.
Plus, pluto portal doesn't provide a lot of bell and whistle in the GUI side as Jetspeed portal does.
This article show you how you can fix bugs for maven-plugins (eclipse setup for hacking the code, debugging etc.) with a concrete project: maven-eclipse-plugin. Lets start …
Using a rule engine provides a framework that allows a way to externalize business logic in a common place. This will in turn empower business users and subject matter experts of the business to easily change and manage the rules. Coding such rules directly into the application makes application maintenance difficult and expensive because the rules change so often. This article goes into detail on how to architect and build a service that uses Drools to provide business decisions. This service can be part of the overall enterprise SOA infrastructure. As such, it can either be a standalone service that is consumed in a one-to-many model by all contracted consumers, or part of a composite service that provides a complex business functionality. To illustrate this point, the article shows how a service using the Drools rule engine can hide the complexity of automating mortgage underwriting decisions that a mortgage company needs to make on a daily basis.
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Gerne dürfen Sie auch interessante Themen vorschlagen, über welche wir dann ggf. bloggen werden.
Aber jetzt wünsche ich Ihnen viel Spaß beim Java lernen!
Ps.: Sollten Sie sich dazu berufen fühlen, einen Beitrag zu diesem Werk zu leisten oder gleich als Autor einzusteigen, so nehmen Sie doch einfach Kontakt zu uns auf.
Java provides a neat way to carry out long lasting jobs without have to worry about threads and hanging the application. It's called SwingWorker. It's not the latest thing on Earth (released with Java 1.6) and you may have already read about it. What I never came across was a practical example of the swing worker.
Domain Driven Design (DDD) is about mapping business domain concepts into software artifacts. Most of the writings and articles on this topic have been based on Eric Evans' book "Domain Driven Design", covering the domain modeling and design aspects mainly from a conceptual and design stand-point. These writings discuss the main elements of DDD such as Entity, Value Object, Service etc or they talk about concepts like Ubiquitous Language, Bounded Context and Anti-Corruption Layer.
Business process management (BPM) – while also its own independent practice / school of thought – is an application of technology that is served by many products, not the least of which is jBPM. The best definition of BPM that I've found is: "Business Process Management (BPM) is the concept of shepherding work items through a multi-step process. The items are identified and tracked as they move through each step, with either specified people or applications processing the information. The process flow is determined by process logic and the applications (or processes) play virtually no role in determining where the messages are sent.".
This book is an introduction to Java™ language--a widely used programming language and a platform. It is meant to be both an introductory guide and a useful reference on Java and related technologies.
This document is a guide to help troubleshoot problems that might arise with applications that are developed using the Sun Microsystems Inc. release of Java Platform, Standard Edition 6 (JDK 6 release or Java SE 6 release). In particular, this guide addresses possible problems between the applications and the Java HotSpot virtual machine. The document provides a description of the tools, command line options, and other help in analyzing a problem. The document also provides guidance on how to approach some general issues such as a crash, hang, or memory resource issues. Finally, the document provides direction for data collection and bug report preparation.
The mock-object testing pattern has commonly been used to test an individual unit of code without testing its dependencies. While this pattern works well for interaction-based testing, it can be overkill for state-based testing. Learn how to streamline your unit-testing using stubs and the pseudo-objects testing pattern.