Craig Caulfield

HTML forms are one of the best-known techniques for gathering data from a user and submitting that data to a server. However, HTML forms are only simple tools and don't natively support some of the features needed by current Web applications such as sophisticated data validation. Also, the user interface created by HTML forms is essentially hard coded for one device, meaning the same form can't be easily re-tasked for, say, PDAs or mobile phones. The W3C XForms Recommendation is one way of addressing some of these issues. (XForms is both plural and singular, so there's no XForm, only XForms.) XForms are XML tags embedded in host documents such as XHTML that, when rendered by an XForms-aware browser, give applications some rich and dynamic capabilities such as: XForms ... (more)

Java Feature — Concurrent Programming and Locking in J2SE 5.0

In concurrent programming, exclusion refers to any technique that dynamically locks certain blocks of code so multiple threads can't corrupt their shared resources in ways that can cause integrity problems. In Java, exclusion has meant using the synchronized keyword against a method or block of code to control access to an object's lock. Even though synchronization is a simple and concise... (more)