JSR 356: Java API for WebSocket provides a standard Java API for creating WebSocket Applications. The specification provides an API for...
Content available at: http://blogs.sun.com/arungupta/entry/totd_136_default_error_page
The definition of a Validator according to the Validator interface:
void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException
The Faces Context is passed in so the validator can introspect various aspects of the request and response.
The UI component is passed in because the actual value will be stored in that UI component after it has been...
I was recently asked: Rails or Grails? I needed to summarize the key differences and summarize industry sentiment. This was my response.
Kirill Grouchnikov recently published Design, uninterrupted #16:
Today’s post highlights the design of Jen.gs, the personal website of Jen Germann. An interesting color scheme uses dark melanzane for background, light gray for main text, light blue for section headers and sunset orange for links; the orange color is also used in the main logo and two separators. The main section uses Cufon...
Over the weekend, I was reading Mark Pilgrim's great book on HTML5 - and when I got to the part about the semantic tags, I thought it might be worth a quick mention.
In case you've missed out on HTML5 in general (and don't want to take the time to read that book I linked above), the idea behind semantic tags is that many sites use div blocks to mark out the same kinds of content, over and over....
JSF supplies progressive enhancement out of the box for many purposes. Here’s a quick tip on how you can enhance it.
Last week Apple released their latest product destined to change the world (the iPad). At least that's what they want us to believe. Perhaps the biggest controversy over the thing is the lack of Flash capability. However this being java.net I have to wonder out loud, where is Java capability, and more importantly why isn't as much controversy being raised over Java being missing? But I think we all can enumerate some reasons for both being missing. And it's worth it for the Java community to ponder this issue.
Aliber is an opensource project for leave, created by Edy Setiawan, which win Inaicta (Indonesia ICT Award), a growing edition of APICTA, win as winner 1st in Indonesia Mobile Competition in Malang/VEDC. but he cannot go to Thailand for APICTA because "juror" said not good product, but MERIT ..strange conspiration :(
In JUG-AFRICA we started an Open Source project to manage the BIG ANNUAL EVENTS for our JUGs. The first release will be available in the early second half of January.
The application will provide a lot of services via the REST Web services.
Content at: http://blogs.sun.com/arungupta/entry/oracle_at_eclipsecon_2010_java
Register before Monday to save $200 on the 2nd annual JSF Summit this Dec 1st-4th in Orlando, FL.
The importance of the Java Script programming languages continues to rise. During the last years we can see more and more web applications based on extensive usage of the Java Script programming language. One of the problems Java Script programmers face is the differntiation between the different web browsers. Each and every web browser supports a different falvore of this language. This post shows the available Java Script debuggers we can use when developing for the three most popular web browsers (Chrome, Internet Explorer and Firefox).
I'll like to let you know the dates of JCertif 2011 the biggest Java Community Event in Africa. About 800+ attendees from many countries.
We will be happy to have you as Speaker on Developer Tools, Java, Open Source, Mobile Apps...or Business solutions.
Still hesitating to join JCertif 2011 ? See the past event : JCertif 2010 and this blog post
A lot of applications these days title themselves RESTful. But how much REST is needed to be RESTful?
Single Sign On allows web applications to share the same authentication state.
GlassFish v2 supports virtual server level Single Sign On (SSO). Web applications with the same authentication realm in a given virtual server can share the authentication state in GlassFish v2.
GlassFish 3.1 supports SSO failover at cluster level. So one has high availability for Single Sign On in a virtual server of...
The www.abelski.com web site offers free (for personal and academic usage) courses about various topics in software development. The site focuses on Java technologies.
Micromatas GWiki is now OpenSource
I decided to write down the answer for some questions which my book's readers email me or ask me via twitter in my weblog so everyone can benefit from the answers. Here is the answer to the first question which involves custom security realms.
GlassFish supports 5 types of security realms out of the box which are sd follow:
File Realm: Usefull for development and testing purposes. GlassFish...