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Mojo
Posts about photography, contract bridge, astrophotography, astronomy, Java development, internet systems.

Snakes, Tortoises, and Stars

Photos and video found here

What do herpetologists and astronomers have in common?

They both like going out on new moon weekends: astronomers to find faint fuzzies, and herpetologists to find nocturnal reptiles.

Last year in October, Jane met herpetologist Hanna Strauss at an event in Mojave National Preserve, and the two of them resolved to get together [...]

Making Flash video from AVI files for JAlbum

My wife’s little point-and-shoot Canon SD870 makes some splendid video. The full-res versions are motion-JPEG files stored as an AVI. It doesn’t take very long to eat up a lot of megabytes.

It’s not very practical to share our video on a web site in its raw form. By converting the AVI video to Flash, you [...]

Messier Marathon 2009

The Messier Marathon seems like a silly exercise, but it’s certainly fun. Jane and I were introduced to our favorite dark sky desert observing site five years ago when Don Machholz invited us to join him for a mid-week Messier Marathon.

Big dobs set up for the Messier Marathon under clear steady blue skies.

We’ve logged 108 [...]

What’s wrong with Caesar’s Palace?

Registration lobby at Caesar's Palace Las Vegas

This past week, my wife and I spent four nights in a deluxe room at Caesar’s Palace in Las Vegas. I was attending TheServerSide Java Symposium, and she went along for three days of pampering and relaxing.

Caesar’s is a fine place, a grand old warhorse of the Vegas [...]

“Bean Validation” Emmanuel Bernard

Registration lobby at Caesar's Palace

Notes from TheServerSide Java Symposium March 2009

What’s the point of a bean validation framework? I’ve been wondering that for a while now. Emmanuel points out that it’s mostly to keep from repeating yourself in code.

Validation itself is obvious … keep crap out of the database, apply constraints to data fields, [...]

“Building Next-Generation Web Applications with the Spring 3.0 Web Stack” Jeremy Grelle

Notes from TheServerSide Java Symposium March 2009

Jeremy is going to help us battle complexity in web applications. (It’s hard to find a web framework that isn’t its own layers of complexity.) He’s the lead for Spring Faces, Spring JavaScript, and a JSF 2.0 expert group member, and he’s a former “rock star.”

The Spring Web stack [...]

“Building Server Platforms with OSGi and Equinox” Rob Harrop

BIRTExchange at TheServerSide (not related to the talk)

Notes from TheServerSide Java Symposium March 2009

Rob wrote his talk for EclipseCon which is next week, so we get an early peek. He’s the lead developer from dm Server at SpringSource.

I’m a complete noob to OSGi, so I’m not familiar enough to see what’s really important or [...]

“The Keys to Agile Software Development” Jon Kern

The tech crew enjoys some breakfast before the morning keynote.

Notes from TheServerSide Java Symposium March 2009

Jon’s a fine fellow, but his talked (to me) seemed mostly to be stating the obvious.  I’ll just provide his “Rules to Code By:”

It’s the Business, Stupid
Not all shiny new toys should be fondled
A fool with a tool is [...]

“The Amazing Groovy Weight-Loss Plan” Scott Davis

Notes from TheServerSide Java Symposium March 2009

Scott Davis was the perfect presenter for the deadly “after lunch” session period. Interesting that his Groovy introduction is in a breakout room rather than the main ballroom, and there is not an empty seat in the house. Everyone is fascinated by these new powerful JVM languages, including me.

Scott [...]

“Spring for the Advanced Java Developer” Rod Johnson

Notes from a session at TheServerSide Java Symposium March 2009

Rod addressed some emerging best practices based around annotation-based application configuration using Spring 2.5 and later.

The emerging best practice is to use the @Autowired annotation rather than @Resource. He demonstrated how to disambiguate bean references with @Qualifier. He also showed how to create your own custom [...]