We have used Spring Roo in a web project and show how we generated an early prototype and transistioned to early development and then to production code.
Is Ehcache a NoSQL store? No, I would not characterise it as that, but I have seen it used for some NoSQL use cases. In these situations it compared very well — with higher performance and more flexible consistency than the well-known NoSQL stores. Let me explain.
The point of "Graham Hacking Scala" is to share with you my knowledge of and experience with the Scala programming language. The blog will contain everything from introductions to basic features through to in-depth analysis of complex techniques and problems. When I make mistakes, you will learn from my mistakes. When I discover cool features, you will learn about them, too.
EJBs in Scala schreiben
Was spricht eigentlich dagegen, eine EJB in Scala zu implementieren? Um diese Frage zu beantworten, habe ich ein Demo-Projekt aufgesetzt, in dem ich zwei EJBs in Scala implementiere.
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.
The first part of the visual git tutorial explains how to locally track project files with the git version control system. It shows how to add and commit changes, how to browse the history, revert changes and how to work with tags and branches.
Java PureFaces is a layer on top of JSF that simplifies implementation. The article here is the aggregate of the blog posts that I have written on our blog. The framework is not yet made public, and we are looking to see if there is interest in us releasing it as an open-source project. We are not a JSF framework company; we develop web applications. This framework is a result of our experience with the tools with which we were already working.
Trading at BetFair betting exchange with Apache SCXML
The main concept of trading is to buy at low price and to sell at high price, e.g. to buy/sell shares at a stock exchange. Similar idea is behind a betting exchange, but instead of shares issued by companies there are horse racing, tennis and football markets, instead of buying/selling shares, bets are placed. For example if two bets are placed on the same horse in a horse race, one bet at a lower price that the horse will lose and second bet at a higher price that the horse will win ,then whether or not a horse is a winner there is always a profit from these two bets.
Relational databases define a strict structure and provide a rigid way to maintain data for a software application. Apache's open source CouchDB offers a new method of storing data, in what is referred to as a schema-free document-oriented database model. Instead of the highly structured data storage of a relational model, CouchDB stores data in a semi-structured fashion, using a JavaScript-based view model for generating structured aggregation and report results from these semi-structured documents. CouchDB has been developed from the ground up with Web applications as the primary focus and has its sights on becoming the de-facto database for Web application development.
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 …