Scott Davis - Author of "GIS for Web Developers" and "JBoss at Work"

Scott Davis is an author and independent consultant. He is passionate about open source solutions and agile development. He has worked on a variety of Java platforms, from J2EE to J2SE to J2ME (sometimes all on the same project). He is the co-author of JBoss At Work, quite possibly the world's first agile J2EE book. He is also responsible for several mapping books, including Google Maps API and GIS for Web Developers: Adding Where to Your Web Applications. Most recently, Scott became the Editor in Chief of aboutGroovy.com, a news and information website that tracks the latest developments in Groovy and Grails. Scott is a frequent presenter at national conferences (such as No Fluff, Just Stuff) and local user groups. He was the president of the Denver Java Users Group in 2003 when it was voted one of the top-ten JUGs in North America. After a quick move north, he is currently active in the leadership of the Boulder Java Users Group. Keep up with him at http://www.davisworld.org.

• Groovy and Java: The Integration Story
• Ajax development with the Yahoo! UI Library and Grails
• Groovy: Greasing the Wheels of Java
• GIS for Web Developers
• KEYNOTE: No, I Won't Tell You Which Web Framework to Use: or The Truth (with Jokes)

Groovy and Java: The Integration Story
I'm attracted to Groovy because of its spirit of inclusiveness. Because it extends my platform of choice, not replaces it -- include a single JAR in your classpath and you are Groovy-enabled. Because it offers full bidirectional integration with Java. Because it offers a nearly flat learning curve for experienced Java developers. Come see how you can use Groovy to augment your existing Java codebase.

We'll look at calling Groovy from Java. We'll look at calling Java from Groovy. We'll look at compiling Groovy code, JARring it up, and deploying it alongside Java.

Groovy offers the same level of integration with Ant. We'll look at Ant tasks that allow you to include Groovy in your build process. Or maybe you'd prefer to use the Groovy AntBuilder and completely manage your build in code. The choice is yours. The important thing is Groovy works along side your familiar toolkit instead of forcing you to replace it.

Ajax development with the Yahoo! UI Library and Grails
Yahoo! is a company that eats its own dog food. They open sourced the Ajax code that drives many of their own websites, including their eponymous homepage, Yahoo! Mail, and Yahoo! News. Come see first hand how the various pieces of the library work together as a seamless whole.

We'll look at some of the everyday useful widgets like the onscreen JavaScript logger (which effectively brings Log4J-style logging to JavaScript) and the calendar components. We'll see how event handling is managed in a cross-brower fashion. We'll look at tabbed interfaces, multi-level menus, and panels and dialog boxes that end up making your website look more like a OS-level desktop than a traditional webpage.

The YUI library is included with the Grails web framework. It certainly works in all of the major frameworks as well, but the easy bootstrapping of Grails combined with the power of YUI library makes for the quickest way to get started with a minimum of hassle. No previous Groovy or Grails experience is required, so come to learn a little about all of these. Any experience JEE developer will feel right at home since Grails uses Spring and Hibernate under the covers.

Groovy: Greasing the Wheels of Java
This is the year of the dynamic scripting language. Ruby (and Rails) has won the hearts and minds of many independent software developers. JavaScript is experiencing a renaissance thanks to the wild success of AJAX and websites like Google Maps. And Groovy (JSR-241) brings the same level of excitement and "scripting goodness" to the Java platform.

In this presentation, we take a very pragmatic "prove it in code" approach to learning Groovy. Since the syntax is (almost) identical to Java, we can dive right in from the very beginning, learning the "syntactic sugar" as we solve real world problems.

You'll learn how easy it is to install Groovy and get started working with it. You'll tackle file I/O, reading and creating text files. You'll create and parse XML and HTML. You'll interact with databases. You'll create Groovlets (servlets sprinkled with Groovy-dust). And finally, you'll get a brief introduction to Grails (hint: the 'G' is silent).

GIS for Web Developers
Based on the book GIS for Web Developers, this talk demonstrates how you can build your own Google Maps in-house using nothing but open source software. We also discuss integrating free, public domain data from sources like the US Census Bureau and the USGS. If you're looking for real-world examples of AJAX in use, you'll find it here. If you're looking for real-world examples of web services in use, you'll find it here.

We'll start by exploring free datasets out there in the wild. They are stored in a myriad of file formats (some proprietary, some open) and projections. Free tools like GDAL and QGIS make it easy to convert them and visualize them. Once the data is normalized, we'll store it in a PostgreSQL/PostGIS database. Not only does the database centralize the mapping data, it opens up quite a few interesting querying capabilities.

Serving up the data is the final piece of the puzzle. We'll look at web services based on the OGC (Open Geospatial Consortium) standards. We'll use Tomcat and the GeoServer WAR to expose our data via OGC interfaces. We'll look at a couple of Ajax-based mapping frameworks (MapBuilder and OpenLayers) that truly bring the power of a Google Maps-like website to your own in-house application.

If you've had no previous mapping experience, this talk breaks the domain down into easy to understand concepts. You'll come out with a better understanding of the challenges and rewards of hosting your own web mapping infrastructure.

KEYNOTE: No, I Won't Tell You Which Web Framework to Use: or The Truth (with Jokes)
"Which framework should I use?" is the question most often heard on the No Fluff, Just Stuff tour. It's well worth asking. Unfortunately, there is no simple answer. After years on the tour, most speakers have crafted a response that would make any Washington politician proud -- long on style, but essentially, "Well, it depends..."

In this humorous keynote, Scott Davis turns to unconventional sources for enlightenment. Could best-sellers like Blink, Freakonomics, The Tipping Point, The Paradox of Choice, and The Wisdom of Crowds finally solve the puzzle? In this "Da Vinci Code"-like romp through the conventional wisdom of the day, will the Holy Grail of web frameworks be revealed? Probably not, but possible side effects may include nausea, dry mouth, and insight into the eternal question of our industry.