Twin Cities Software Symposium
October 2 - 4, 2009 - Minneapolis, MN
View the event details here ».
Scott Davis - Author of "Groovy Recipes"
"Tests don't break things; they dispel the illusion that it works." (Anonymous)
In this era of "Test-First" and "Test-Driven" development, the modern software engineer knows that testing is no longer an optional part of the process. You need to have the best tools at your fingertips: a set of utilities that maximize your results with a minimum of effort. Groovy offers Java developers an optimal set of testing tools.
"XML is like violence: if it doesn't solve your problem, you aren't using enough of it." (Anonymous)
XML is everywhere. Whether you are dealing with local configuration files (web.xml, struts-config.xml) or remote web services (SOAP, REST, RSS, Atom), the modern software developer needs to be able to request, slice, and dice XML with ease. That requires a set of razor-sharp tools that reduce the inherent complexity of the problem, not multiply it. Once you see XML tremble in fear at the awesome power of Groovy, you'll wonder what you ever did without it.
"There's an old story about the person who wished his computer were as easy to use as his telephone. That wish has come true, since I no longer know how to use my telephone." (Bjarne Stroustrup)
The "lizard brain" is the oldest part of the human brain -- the part responsible for autonomic functions like breathing, heart rate, and navigating websites. OK, maybe not that last part, but your website should be easy to use. Stupid easy. Lizard brain easy. Any time your user spends figuring out how to do something -- even for a split second -- is wasted time due to poor design. Inspired by Steve Krug's book "Don't Make Me Think", this talk answers the question, "Why is that website so hard to use?"
"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius - and a lot of courage - to move in the opposite direction." (Albert Einstein)
REST and Resource-Oriented Architecture (ROA) are popping up in technical discussions more and more frequently. Here, you'll see practical examples of adding RESTful web services to your Grails application.
"The challenge of modernity is to live without illusions and without becoming disillusioned." (Antonio Gramsci)
There are plenty of sarcastic "Web 2.0" checklists out there -- be perpetually in BETA, when in doubt add rounded corners, etc. While we can all laugh at the superficial aspects of the Web 2.0 revolution, there are plenty of serious aspects to it as well. Is your website mash-up friendly or hostile? Do you tell your visitors when things change (via RSS or Atom syndication), or do you expect them to check in daily for updates? Is your website a silo or a part of a larger ecosystem?
David Geary - Author of Graphic Java, co-author of Core JSF, member of the JSF Expert Group
An introduction to Flex for Java developers.
Prerequisite: Familiarity with Flex and at least one other web application framework
Learn to implement web applications with GWT.
Prerequisite: Familiarity with a component-based framework, preferably a desktop application framework
Learn to do amazing stuff with GWT.
Prerequisite: GWT fu, Part 1 is not a prerequisite for this session, but it will help if you have some familiarity with GWT.
This session covers two of the most important features of JSF 2.0: composite components and built-in Ajax.
Prerequisite: Familiarity with JSF, or other component-based frameworks. Familiarity with Ajax. This session builds on the JSF 2.0 Introduction talk, so it is helpful, although not required, if you attend the intro talk before coming to this session.
This session introduces JSF 2.0 fundamentals, with emphasis on new features in JSF 2.0.
Prerequisite: Familiarity with JSF, or other component-based frameworks
Stuart Halloway - CEO of Relevance
Agile teams manage change and risk by apapting. But to adapt, you must identify opportunities for change and take them. Retrospectives are a fun, cost-effective way for your team to learn and change.
If an iteration is the heartbeat of an agile development process, then Iteration Zero (IZero) creates the heart. While you can (and should) retrospect and adjust throughout the software lifecycle, few things are as valuable as a good start. In this talk, you will learn how we run Iteration Zero at Relevance.
In this talk, we will explore and compare four of the most interesting JVM languages: Clojure, Groovy, JRuby, and Scala. Each of these languages aims to greatly simplify writing code for the JVM, and all of them succeed in this mission. However, these languages have very different design goals. We will explore these differences, and help you decide when and where these languages might fit into your development toolkit. For more information see http://blog.thinkrelevance.com/2008/9/24/java-next-overview.
Find out why Clojure is Java.next:
- Clojure provides clean, fast access to all Java libraries.
- Clojure provides all the low-ceremony goodness you know and love from dynamic languages such as Ruby and Python.
- Clojure includes Lisp's signature feature: Treating code as data through macros.
- Clojure's emphasis on immutability and support for software transactional memory make it a viable option for taking advantage of massively parallel hardware.
Teams adopting agile should begin at a tactical level, but they shouldn't end there. The Agile Manifesto operates at many different levels. Learn to apply the principles of agile at a strategic level. Otherwise you can have a great agile ground game and still lose.
David Hussman - Agility Coach/Instructor/Practioner
Many people simplistically apply agile recipes, assuming a one size fits all approach. This may lead to naive use beliefs like collocation breeds instant success. While sitting together always helps, it does not mean that people spontaneously collaborate to create sustainable value.
Instead of approaching agile methods like a recipe, this session will teach you to design agility that is a useful tool for your project community. We will cover practice selection ideas, tools for creating healthy development eco-systems and product discover tools. If you would like to improve the stickiness of your agility, stop in learn a pile of techniques to use before holding your first planning session.
This session speaks to the question being asked so often: "what is an agile coach" From guiding planning sessions to pairing with developers to helping teams groom backlogs, this session provides insight into coaching agile projects and fostering the agility that produces. Whether you are a manager, developer, or tester, if you are interested in leading the adoption or tuning agility, this session will help prepare you for your first coaching gig.
While actors and use cases often left users behind, personas and story maps bring the users to life and help mine real value. This session will teach you how to craft personas and use them to drive value into your development stream. The tools presented will help you better understand your buyers and users and build strong product backlogs and product road maps.
People ask me all the time, "How do you get people to buy in the use of agile methods?" While this is easier than it once was, there are still many challenges, and agile snake oil sales are on the rise. If you are looking to sell agility or deeper your agile investment (or your sales force), this session will provide you with tools that will help you frame your sell points, select your sales tools and communicate the value (of a practice) over the mechanics.
Matthew McCullough - Head of Training, GitHub
Many development shops have made the leap from RCS, Perforce, ClearCase, PVCS, CVS, BitKeeper or SourceSafe to the modern Subversion (SVN) version control system. But why not take the next massive stride in productivity and get on board with Git, a distributed version control system (DVCS). Jump ahead of the masses staying on Subversion, and increase your team's productivity, debugging effectiveness, flexibility in cutting releases, and repository redundancy at $0 cost. Understand how distributed version control systems are game-changers and pick up the lingo that will become standard in the next few years.
Prerequisite: Basic understanding of Subversion or similar version control system
Maven has been on the Java build tools scene for quite a number of years, but the adoption rate in enterprises is now going through the roof. Maven can seem daunting, but this presentation will equip existing Maven users with more efficient techniques and tools to overcome the biggest perceived Maven hurdles and build issues with ease.
We'll examine tools to help you find artifacts in central repositories, manage your corporation's internal Maven artifacts with a proxy tool such as Nexus, view and override dependency graphs, dependency management and multi-module best practices, create OS specific profiles, and leverage the latest Maven plugins for the top Java IDEs.
Prerequisite: Basic Maven knowledge
This session will survey a wide range of tools across the Java space. We'll look at utilities such as VisualVM, jstatd, jps, jhat, jmap, Eclipse Memory Analyzer, jtracert, btrace and more.
Open Source is not just a suite of libraries you consume within your application, but now reaches into the space of tools to help you troubleshoot and improve your applications. The price of these tools eliminates barriers to their use and their open source nature allows you to mix and match them into compositions that work well for your application's unique debugging needs.
iPhone development is all the rage both in the mobile entertainment, social networking, and productivity application spaces. As a Java developer, prepare yourself to be a participant in aspects of this new breed and platform of development. Hop on board with a quick start to iPhone application coding in Objective-C and integration with some of our favorite Java web service back-ends such as RESTful Grails.
Ted Neward - Enterprise, Virtual Machine and Language Wonk
Once you've learned the core Collections clases, you're done, right? You know everything there is to know about Collections, and you can "check that off" your list of Java packages you have to learn and know, right?
Prerequisite: Busy Java Developer's Guide to Collections
For so many Java developers, the java.util.* package consists of List, ArrayList, and maybe Map and HashMap. But the Collections classes are so much more powerful than many of us are led to believe, and all it requires is a small amount of digging and some simple exploration to begin to "get" the real power of the Collection classes.
Java's threading capabilities took a serious turn for the better with the release of Java5, thanks to the incorporation of the java.util.concurrent packages, a set of pre-built components for thread pooling and execution, synchronization, and more.
Java's threading capabilities have been a part of the Java platform since its inception, yet for many Java developers, using Threads still remain a dark and mysterious art, and synchronization beyond the use of the "synchronized" keyword is almost unknown.
Prerequisite: The Busy Java Developer's Guide to Concurrency (Part 1: Threads)
Much noise has been made in recent years about functional languages, like Scala or Haskell, and their benefits relative to object-oriented languages, most notably Java. Unfortunately, as wonderful as many of those benefits are, the fact remains that most Java developers will either not want or not be able to adopt those languages for writing day-to-day code. Which leaves us with a basic question: if I can't use these functional languages to write production code, is there any advantage to learning about them? The short answer is yes, for the fundamental premise--"I can't use functional code on my Java project"--is flawed. Java developers can, in fact, make use of functional ideas, and what's better, they don't even have to reinvent them for Java--thanks to the FunctionalJava library, many of the core primitives--interfaces that serve as base types for creating function values, for example--already exist, ready to be used.
Even though the Java 7 JSR has yet to be formed, some interesting things are beginning to emerge from Sun about what Java7 may include when its formal release contents are finally made public.
Brian Sam-Bodden - Java author, Ruby geek and Open Source Advocate
Learn 10 tried and true ways to improve the way you use Hibernate today. In this session you would learn about a collection of 10 tips, tricks, practices and tools that will make you more effective at designing, implementing, testing and tuning your application's Hibernate-powered object-relational layer.
In this session you'll learn some of the more advanced features of Drools; a pure-Java Rule Engine. This session will walk through the construction of an advanced Rules application covering such topics as:
- Fine control and monitoring of a Working Memory session
- Using Decision Tables
- Advanced Rule Language Features
- Building Domain Specific Languages
- Managing your Rules
Prerequisite: Beginning Drools
Drools is an open source pure-Java implementation of a forward chaining rules engine. Drools can be used in a J2SE or J2EE application and allows you to express rules programatically or by building domain specific rule languages. Learn how Business Rules with Drools can make your Java applications more flexible and robust.
In this session we will explore the Java tools, techniques and algorithms that enable us to filter, classify, relate and discover patterns in our data that might not immediately obvious. With the emergence of social networking applications a great deal of data and hidden connections that can be leveraged to build better and smarter applications.
Nathaniel Schutta - Author, speaker, software engineer focused on user interface design.
The single most important tool in any developers toolbox isn't a fancy IDE or some spiffy new language - it's our brain. Despite ever faster processors with multiple cores and expanding amounts of RAM, we haven't yet created a computer to rival the ultra lightweight one we carry around in our skulls - in this session we'll learn how to make the most of it. We'll talk about why multitasking is a myth, the difference between the left and the right side of your brain, the importance of flow and why exercise is good for more than just your waist line.
We've all used web applications that had us screaming at their creators - unfortunately sometimes we're the ones being cursed. Believe it or not, there are some simple steps we can take to ensure that our users have a great experience.
Ah, that new project smell, it's intoxicating! Full of hope, we trek off in pursuit of technical greatness. In this talk, we'll cover some of the important first steps of a new project including continuous integration, creating a testing culture and establishing low ceremony process.
Being on a high performing team is a transcendent experience - unfortunately, many of us find more dysfunction than function. In this talk, we'll take a look at some of the common issues that face teams and discuss some ways of working towards a happy crew.
Ken Sipe - Architect, Web Security Expert
Thoughts lead to words, words lead to action, actions lead to habits. In this session we'll sharpen the development saw in the process of understanding what makes a hyper-productive programmer. The focus will consist of developer habits and development processes.
Scale... what is scale... how do you applications that are scalable. How do you know if the application scales?
You are using Java, whew!!! No need to worry about memory, the garbage collector will handle that. Those who have had a memory issue in Java are not so naive any more. Often memory utilization and heap sizes are an after thought and are not recognized until the application is in production, often caused by application uptime, production request volume or production sets of data. When the OutOfMemory Error occurs, often the science of development seems to brake down and knobs are turned. First the (-mx) maximum heap space gets adjusted... More is better right. The next OutOfMemory, heads start scratching, code reviews start in earnest, and Google gets several new hits. Did you know that it is possible to get an OutOfMemory error without running out of heap space?
This session is a quick look at all aspects of being a corporate software architect. Whither you are a developer looking to move into the role of architect, needing to have an understanding of what is expected or already in the role of software architect looking for new and interesting ideas, this session is for you.
Brian Sletten - Forward Leaning Software Engineer
There is a shift going on in the Enterprise. While still used and useful, the promises of the SOAP/WSDL/UDDI Service-Oriented Architecture (SOA) stack have failed to live up to their promise. A new vision of linked information is enveloping online and Enterprise users. The REST architectural style is squarely behind this thinking as a way of achieving low-cost, flexible integration, increased data security, greater scalability and long-term migration strategies.
If you have dismissed REST as a toy or are unfamiliar with it, you owe it to yourself to see what is so interesting about this way of doing things.
The human web is reasonably well in hand by now. We are getting pretty good at building systems that people find valuable and entertaining. We have not spent as much time concerned about our software friends. There is a ton a rich content available on the web that is too difficult to extract in automated ways using just XHTML, the meta tag and microformats. This talk will introduce you to some emerging technologies from the Semantic Web camp to enrich your web pages with useful information for both automated extraction and improved browsing experiences.
Prerequisite: The Semantic Web: The Future Now would be helpful, but not required
The human-friendly Web is about nicely-formatted, accessible content for users to browse. There is an emerging Data Web that relies on technologies from the Semantic Web stack to link increasingly rich connections between various data sources. SPARQL and RDF are the main tools for expressing and using this connectivity. This talk will introduce you to one of the practical and accessible aspects of employing these ideas on the Web and in the Enterprise.
Prerequisite: The Semantic Web: The Future, Now and Rich Web Pages : Publishing Semantic Content with GRDDL and RDFa would both be helpful but are not required
The goal for web services was always to reduce our burden by increasing the potential for reuse of business functionality. Somehow, we got lost along the way in a morass of confusing, unfulfilling and downright broken technologies.
While we are interested in pursuing REST-based systems for managing information, we need some strategies for tying it all together sensibly. If we abandon WSDL, SOAP and UDDI, what do we replace them with? This talk will walk you through combining resource-oriented strategies with technologies from the Semantic Web to describe, find, and bind to services in dynamic, flexible and extensible ways.
We will start to blur the distinction between data, documents, services and focus on information and how it is connected to what we already know.
Prerequisite: The Semantic Web: The Future Now, Give it a REST and SPARQL : Querying the Data Web would all be helpful talks to have attended
Venkat Subramaniam - Founder of Agile Developer, Inc.
Domain Specific Languages (DSLs) are languages targeted at a particular problem and domain. They have context and are fluent. They help users of applications at various levels to easily communicate with your application. Developing DSLs, however, are not easy. You could easily get dragged into using parsers and tools with steep learning curve.
Projects often start out simple, but soon become complex and turn into a lose cannon. Organizations are struggling to maintain and evolve software. Poor code quality is a significant part of that problem. Improving the quality of code is critical to success of enterprise projects.
Java is a well established language, that has been around for more than a decade. Yet, programming on it has its challenges. There are concepts and features that are tricky. When you run into those, the compiler is not there to help you.
Scala is a static fully object-oriented, functional language on the JVM. While taking advantage of the functional aspects, you can continue to make full use of the powerful JVM and Java libraries.
In this presentation we will take a quick walk though the issues with concurrency and how the solutions provided in Scala and Clojure help address those.
Testing is a key ingredient to the success of a project. However, testing becomes awfully hard when your application deals with dependencies and that is often the reality.
Craig Walls - Author of Spring in Action
Writing tests is more than just writing JUnit test cases and hoping that they'll pass when your project is built. If you want assurance that your code is sound and provides the desired functionality, then you'll want to test it from every angle and run those tests as frequently as possible.
Spring 3.0 introduced the Spring Expression Language (SpEL), an extremely powerful yet succinct way to wire non-trivial values into Spring beans. In this presentation, we'll explore SpEL in great detail and see how SpEL opens up a whole new realm of bean wiring possibilities.
In this session, we'll explore modular web application development using Spring-DM and OSGi. I'll dispel the myth that OSGi is hard and show you tips and tricks that make Spring-DM and OSGi development easy.
In this session, I'll lead a guided tour through the latest that Spring has to offer. Whether you're a Spring veteran or a Spring newbie, there will be something new for nearly everyone.