Blogs by topic J2EE and user felipegaucho
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J2EE
I just updated the Cejug-Classifieds Project to support Maven 2 builds and I added some new features, including a Shell Script able to configure the resources and also to deploy the the application in the Glassfish V3. The script creates all Java EE resources required by the application, like the DataSource, the JavaMail connection and the JMS Queues. In the next sections I will describe how to...
When I comment in mailing lists that I am implementing a
registration module for my application, hundreds of other developers
comment they are coding exactly the same functionality in their projects
- an indicator that something is missing in the Java EE Universe.
Poison messages are a common threat to java EE applications using JMS resources, but there are a few tricks you can use to workaround them.
To bypass the optimistic locking is a common mistake when we expose domain models through web-services. The well know and avoidable trap continue to catch the ones that insist in to persist without optimism.
The Executive Committee for SE/EE has approved the Public Review Ballot for JSR #315.
The last decade of the XXth century was marked by the HTML advent, from a simple language rendered by the Web Browsers to the standard de facto of Internet contents: web-pages, mail and business applications. No doubt the HTML is the most sucessfuly language in the software industry but, despite this amazing supremacy in the web publishing, it seems the end of HTML life-cycle is coming.
Web Services and XML
One of the most controversial but yet powerful techniques for integrating distributed systems is the JSONP format, a javascript function that bypasses the same origin policy of the browser. Jersey provides built-in support for JSONP and this blog demonstrates how to benefit from this feature.
When JSONP is a good option?
The controversial around JSONP is...
Registration is one of most implemented use cases ever, but things get a bit different when you try to implement it in a RESTful Web-Service.
Rule of thumb: Avoid to use {variables} as the first path of a
Jersey's @Path
I am working on the Arena PUJ Project, a RESTful web-service to
support PUJ competitions. We are in the early stages of the project but
we already got some resources published on the web. Let me show you a
few URL samples:
An insecure GET method to read all competitions promoted by a
JUG:
GET /{competition_id}/...
Security
After configuring Hudson to run in a Glassfish with security manager enabled I started to have problems in other applications, specially web applications using reflection to access private fields in Java classes. Over the web I noticed a lot of people struggling with the same issue (Seam, GWT, Vaadin, etc). The problem is caused because most of the modern...
Databases
JPA has its puzzles and from time to time it is useful to write down that tricky solution for our mapping needs.This entry describes a ManyToMany relationship with an additional state in the intermediate table.
Can you compile, deploy and test your Java EE projects with just 1 line of command? Check it out.
Research
Lately I am working in a new pet project, quite interesting and perhaps you also have nice ideas on how to improve it.
