Tag: java

Howard Lovatt has a good summary of the various proposed approaches to include the ability to support closures in Java, including his own proposal as well.

Closures are supported in many other languages like Ruby, Python, Lisp and Perl, and allow the developer to define a block of code and refer to that block of code with a reference. This allows the reference to the block to be passed as a parameter and to be applied to other code, for example to all matching items within a loop.

This book was mentioned on the JavaPosse’s podcast this week – it’s a collection of sample Java SE and EE type questions that are commonly used in interviews for developer positions, and would be useful for both interviewers and interviewess as a good source of information.

The site it is hosted on is also worth a look as it is an interesting concept – Lulu.com is a community publisher site. You can upload your own book content to be published on the site either for free or for sale, and the site offers it either for download or can print one off copies for people to purchase.

The JavaPosse recently had a roundtable discussion involving people connected with the Google Web Toolkit (GWT) – Robert Hanson, who works with the GWT Widget Library, Bruce Johnson, the Tech Lead of the GWT project, and Ryan Dewsbury, developer of the GPokr.com site (which is implemented using GWT).

The podcast is worth a listen to get some background information about the development of GWT and it’s usage, and how it has been used on projects so far.

JBoss have released Hibernate 3.2, which is now fully compliant with the JPA spec.

Using Hibernate Annotations, O/R mappings can now be declared using EJB3.0 style annotations inline in the Java classes, instead of (or together with) the previous approach of XML based mapping files.