OnJava.com have an interesting article giving an overview of how to use the calculated property feature, forumula, in your mappings.
Comparing Windows Vista with Apple OS X Tiger
Microsoft will be launching the long awaited and overdue next generation of Windows, formally known as ‘Longhorn’, but will reach the shelves named ‘Windows Vista’, sometime in 2006.
What might surprise Apple Mac OS X Tiger users is how similar this new version of Windows is compared with Tiger. ‘My Documents’ and ‘My Computer’ become just ‘Documents’ and ‘Computer’ as they are in Tiger. Vista’s folder windows will have a ‘search as you type’ feature, which Mac users have had for some time now.
Some nice additional features in Vista include the document preview on desktop icons, so you can see an overview of the document content on the icon itself. Just how practical or useful this will be without the icons occupying a sizable area of your desktop remains to be seen.
One of the most interesting and innovative features for Vista was dropped from the first planned release of Longhorn some time ago. Microsoft started making a lot of noise about how they are going to replace the MS-DOS hierarchical-style file system with a file storage system based ontop of a version of SQL Server. This sounded very promising, given the size of hard drives today, and how it is becoming nearly improssible to find anything on your drives. Unforntunately though, WinFS, as it was to be called, may not see the light of day in this first release of Vista.
Terrabyte of disk drive space now possible for desktop PCs
Wow. With the current latest Serial ATA drives (and also regular parallel ATA133 drives) now reaching 500GB, just two of these puppies in your desktop will give you a terrabyte of online storage.
This seems like an out of this world quantity of drive space, but with many home users filling their drives full of MP3s, digital photos, digitial movies, and the ever increasing size of (Microsoft) bloatware, 1,000GB doesn’t seem that crazy nowdays, although just a few years back this would have seen like science fiction.
And the price is not out of reach either. One 500GB drive from Hitachi will set you back somewhere between $380 – $430 (check current prices on http://www.pricewatch.com/
Building multi-criteria searches with Hibernate
DevX have a good article on how to use Hibernate’s Criteria Query support for building queries with multiple (and variable) search fields. This is a useful feature for building queries for web pages where the number of columns being queried against can vary depending on the users input.