Central Ohio Software Symposium
July 25 - 27, 2008 - Columbus, OH
View the event details here ».
David Bock - Principal Consultant, CodeSherpas Inc.
Estimating is regarded as little little more than 'educating guessing', but so much can hang on the quality of those estimates. With good estimates we can set clear expectations for project delivery, but with bad estimates we can run over schedule and over budget, or worse. We often estimate when we know the least about the work that needs to get done - so how can we make the best of what is potentially a bad situation?
Maven is a build tool that does a lot, demos well, and leaves the build maintainers managing what seems like unbridled complexity. It doesn't have to be that way - Maven is driven by some strong 'build process methodology', and that complexity can become manageable by wrapping your head around it. Furthermore, you can migrate to Maven 'piecemeal', by mapping your existing ant build to the Maven Lifecycle and calling your existing Ant tasks - you can decide to sip the Maven kool-aid.
Ideally, a build tool should be so simple and approachable that it fades into the project background and allows anyone to maintain it. Unfortunately, Maven's power comes at the expense of this ideal - Maven's philosophy is more like "the build process is so important that the people maintaining it should be steeped in the ways of Maven". This talk will give you the exposure you need without elevating The Maven Way to a religion.
How many times have you started a new project only to find that several months into it, you have a big ball of code you have to plod through to try to get anything done? How many times have you been the ?new guy? on an established project where it seems like the code grew more like weeds and brambles than a well-tended garden? With a few good structural guidelines and several tools to help analyze the code, we can keep our project from turning into that big ball of mud, and we can salvage a project that is already headed down that path.
Agile software development isn't just about the development team or managers... the customer has an active role too. The customer should be prioritizing the stories in each release, potentially working onsite in constant contact with the development team, and even participating in daily status meetings.
Done well, the customer's presence has a positive influence on the development iteration. Done poorly, the customer detracts from the team's focus. So how do you be the customer of an agile team? How do you teach someone to be that customer?
Scott Davis - Author of "Groovy Recipes"
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. The Portland, Oregon Transit Authority recently migrated from a proprietary web mapping solution to the suite of 100% free and open source software discussed in this book. We look at Java-based clients, Java-based servers, and everything in between. 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.
Struts enjoys an unprecedented marketshare in the Java web development space -- 60%-70% according to most surveys. As newer, modern web frameworks come to the scene, very little attention is paid to the real costs of migrating an existing Struts application. This talk shows you ways to mix Groovy into a legacy Struts application, dramatically reducing both the lines of code and the complexity. We'll also introduce you to Grails (a Groovy-based web framework) whose URL-mapping capabilities allow it to replace your Struts application without breaking legacy URLs.
This talk focuses on the ways that Groovy can turn a traditional Java developer's world-view upside down. We'll start by talking about how you can thumb your nose at The Man by leaving out many of the main syntactic hallmarks of Java: semicolons, parentheses, return statements, type declarations (aka Duck-typing), and the ever-present try/catch block. Then we'll look at features like operator overloading and method pointers that Groovy welcomes back into the language with open arms.
There are wild-eyed radicals out there telling you that Java is dead, statically-typed languages are passe, and your skills are hopelessly out-of-date. Those extremists are the same ones who don't bat an eye at throwing out years of experience to learn a new language from scratch, pushing aside a familiar IDE for a new one, and deploying to a whole new set of production servers with little regard to legacy integration.
While this "burn the boats" approach to software development might sound exciting to some folks, it's giving your manager the cold shakes right now. What if I told you that there was a way that you could integrate seamlessly with your legacy Java code, continue to use your trusty IDE and stable production servers, and yet take advantage of many of the exciting new dynamic language features that those fanatics keep prattling on about? You'd probably say, "Groovy!" I would, too...
How optimized is your website? YSlow, a FireFox/FireBug plugin, doesn't pull any punches. It gives any website an A, B, C, D, or F rating based on 14 individual analysis points. You'll be amazed (or depressed) at what YSlow thinks of your site. In this talk, we'll walk through these points step by step, learning what Yahoo! (the creator of this utility) does to keep its web properties running as quickly as possible.
Keith Donald - SpringSource Principal & Founding Partner
Web Flow is a Spring Web MVC extension that allows you to define Controllers using a higher-order domain-specific-language. This language is designed to model user interactions that require several requests into the server to complete, or may be invoked from different contexts. This session dives deep into the features of the Web Flow definition language, and illustrates how to use it to create sophisticated controller modules.
Spring's approach to integrating JavaServerFaces technology is novel and innovative; an approach that lets you maximize your investment in Spring while still adhere to standard JSF idioms. In this session, Keith will go "behind the scenes" and explore the framework architecture underpinning Spring's JSF integration. Attendees will gain valuable framework design and architectural insight.
Stuart Halloway - CEO of Relevance
Git is not the next step in evolution of centralized source control, following in the footsteps of cvs, svn, etc. These tools provide centralized history of deltas, where git provides distributed history of trees of content. In this talk, you will see the advantages of the git approach:
Incredible speed. Local, disconnected operation. Source control workflow customized to your team. Centralized, distributed, or layered, you can build it with git. Cheap and easy branching, tagging, and merging. Editing and refactoring your commits.
Over the last few years, we have taken dozens of projects to 100% coverage, and there are still plenty of things that can go wrong. We will look at examples the various problems, and show how to prevent them from infecting your project.
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.
John Heintz - President of Gist Labs
Java's Annotations provide a way to add data to program elements. Annotations are used to configure containers, describe persistence configuration, set security roles, and are defined by nearly every recent JSR standard. This presentation explains the processing options available for consuming Annotations and demonstrates the techniques with live code demonstrations.
In this session you will learn about the Glassbox open source troubleshooting and monitoring tool. Glassbox enable detection of common application problems such as database failures, slow operations, thread contention, and excessive distributed calls. Glassbox enables low overhead monitoring and troubleshooting without needing to "bake in" instrumentation up front.
REST is a description of how the Web works, what use is that to developers just trying to build or integrate applications?
This presentation introduces REST, explains the key differences/constraints, and then highlights how these concepts can improve key parts of application and service development: * scalability, integration, evolvability
This presentation introduces and demonstrates Liquibase: a new Java tool to support automating database refactoring and deployment.
Mark Johnson - Advisory Engineer @ Pivotal
This session will explore GroovyWS as a tool to quickly produce and or consume a web service. Web Service testing becomes much easier without the need to purchase expense testing tools using the GroovyWS framework.
With all of these web services becoming available there is an increasing need for tools to pull together multiple web services into one composite service. BPEL is an up and coming approach to orchestrating a workflow consisting of Web Service calls.
How do you know when you are "DONE" and the assignment is complete? Well of course you are done when your requirements are complete. But it always happens that your interpretation differs from the customer/management's interpretation.
You have just received the much desired promotion to Technical Team Lead The team is waiting your direction. You What should you do now?
Once you leave academic "hello world" projects, software development is full of unknowns which result in the high rate of project failure we see too often in industry. Reasons for a project failure will vary based on the stakeholder interviewed. This session will provide a software development risk framework and examples you can apply in your projects to reduce or at least soften the impact of failure.
Development teams are increasingly scattered all over the world, often a development manager now days will never meet the entire team face to face.
Howard Lewis Ship - Creator of Apache Tapestry
Part one (of two) covers the TestNG unit testing framework, and shows how it integrates with Selenium (for integration testing).
In part two (of two) we go in depth on EasyMock, the weird and wonderful tool for creating mock objects on the fly. We'll do a good bit of live coding as we examine how to use, tame and extend this powerful tool.
Tapestry 5 is a complete rewrite of Tapestry from the ground up. It takes everything good about Tapestry and cranks the volume up to eleven, while removing the frustrating parts of using Tapestry. This session takes the wraps off this new and innovative technology, showing off important new features such as live class reloading (the ability to change your Java classes and continue using the application without interruption or redeployment), the simplified coding model, and the total lack of XML. This session is of interest to those already using Tapestry 4, and those new to Tapestry and ready to jump on the bandwagon.
Everyone likes the Gang of Four design patterns, but it's not always clear just how to make use of them in your day to day coding efforts. Hidden inside Tapestry 5 is an Inversion of Control (IoC) container that is structured around several common patterns (Chain of Command, Strategy, Decorator and Filter Chain will be covered). This isn't academic navel-gazing ... this is about leveraging the common patterns so that you can write code you can easily test, and about creating frameworks and toolkits that can be easily extended.
We'll see how Tapestry uses these patterns, and go from there into how you can apply the same techniques to your own projects, resulting in better, cleaner, more testable code.
Kito Mann - Editor-in-chief of JSF Central and the author of JSF in Action
For developers who are currently using Spring and JavaServer Faces together, this session explains how to handle common application development concerns such as conversational scope, transaction management, and application partitioning.
JBoss Seam is a popular open-source application framework for Java Platform, Enterprise Edition (Java EE) 5.0. For web application developers, a significant benefit of Seam is that it greatly enhances JavaServer Faces technology. This session explains key Seam features such as tight integration with EJB3, Hibernate and JPA integration, conversations, RESTful web pages, and so on.
Prerequisite: Basic understanding of Java web application development. Familiarity with Dependency Injection/Inversion of Control, JSF, and JPA/Hibernate persistence is a plus.
JavaServer Faces, the standard Java web development framework, has gained quite a few fans and detractors over the past few years. Regardless of the camp, most agree that the framework can improve. JSF 2.0, currently under development through the Java Community Process, aims to be a dramatic leap forward for the framework.
Prerequisite: familiarity with JSF
The benefits of using JavaServer Faces UI components to rapidly construct complex, interactive user interfaces have become quite clear over the past couple of years. However, the standard process for developing these UI components is currently quite tedious. Fortunately, there are better solutions available.
Prerequisite: Basic understanding of JSF.
Richard Monson-Haefel - VP of Developer Relations, Curl Inc.
An effective software architect understands that every application is different and requires unique choices regarding programming language, middleware, integration, data access, user interface design, etc. Richard Monson-Haefel has distilled knowledge from his own experience and from personal interviews with the World's best software architects to define 10 principles every software architect should know in order to be effective.
With literally hundreds of RIA products (e.g., Adobe Flash, Nexaweb, Backbase) and open source Ajax projects (e.g. Dojo, GWT, Prototype) to choose from. Picking the right RIA technology for the job requires months of research. Richard Monson-Haefel has been researching and writing about RIA alternatives for two years and has already done the research so you don't have to.
What does GPL, LGPL, MIT, Apache licenses, copy left, and dual licensing mean? Richard Monson-Haefel explains both the legal and technical implications of the major open source licenses in plain English. He explains when and how you can use open source in the enterprise and in the development of software products and how to protect your organization from abusing open source licensing.
Joseph Nusairat - Co-Author of Beginning Groovy & Grails
JBoss Seam is one of Java's ways of providing agile development to enterprise Java applications. Seam is designed to take away the headache of linking JSF, EJB3, AJAX, and jBPM by using interception directed by user defined annotations. The end result is smooth and easily manageable code without the plumbing usually required for functionality. This session will take you through the process of how Seam works, creating a sample application, and what Seam can buy you for enterprise setup including the pros and cons.
Vital to any development is the ability to test that application. Most frameworks have their very own testing suites, EJB3 is no exception and their are a variety of testing apparatuses. We will examine testing with JBoss Embedded, EJB3Unit and mocking with Easy Mock and JMocks.
Prerequisite: Knowledge of EJB3.
This presentation is designed to give users an introduction to what Grails has to offer. The presentation will show how fast one can get up and running with Grails.
Pratik Patel - CTO TripLingo & Code Hacker
Doing basic Object-to-Relational Mapping is fun and easy with JPA. Annotate your persistent classes, define a couple of configuration parameters, and you're off and running. This session starts with a basic object model and adds persistence using annotations. Learn how to do mappings for your object model for simple and complex relationships. Also learn how to map Java5 constructs like Enumerations.
Unit testing with JPA can be tricky. Where do you use mock objects? How can I structure my unit tests to exercise my DAO's effectively? How do I unit test JPAQL? Do I need to enhance or can I use a LoadTimeWeaver in my unit tests? This presentation will show, using live code examples, how to effectively unit test JPA components so developers can have confidence in the code they build using JPA.
As with many technologies, the basics are easy. The hard part comes when the developer needs to do sophisticated integration, development, and testing as part of an enterprise application. A large enterprise application requires the developer to think of issues that affect the development, scalability and robustness of the application. This presentation will cover the advanced topics described below.
A large enterprise application often will have several sub-projects that each contain their own JPA persistence unit. This opens up a number of questions around how to organize the persistence units and how the code between sub-projects should interoperate. Developers will gain insight into these issues and will see a couple of solutions using live code examples.
Jared Richardson - Agile coach and co-author of Ship It
Software projects fail over and over for many of the same reasons. We'll look at some of the more avoidable problems and some solid ways to fix them, or avoid them in the first place.
A great team builds great software, but how do you build a great team?
Has your career been a random product of your manager's whims or company's needs? Never rely on your company to keep your skills current and marketable. Take control of your own career with a proven strategy.
Technical debt has long been recognized in technical circles for years, but convincing your manager to budget time to repay "technical debt" has always been problematic. Let's couch the term technical debt concept in language more familiar to our managers: credit card debt.
An overview of the Agile software approach from the book Ship It! A Practical Guide to Successful Software Projects.
There are a number of great techniques you can use across technologies and projects. Come hear some of my favorite ways to move "beyond" and contribute a few of your own. We'll discuss topics ranging from glue languages to ditching your IDE to building your brain.
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.
Mylyn is a task-focused toolkit for the Eclipse IDE that allows developers to focus on tasks in a way that they never been able to do before. Mylyn eliminates the constant context switching produced by typical ways IDEs are used. No more scrolling/browsing/searching/tagging/sending emails with progress updates... Mylyn provides a new way of working that allows you to focus on specific tasks by reducing information overload. Mylyn also provides a framework for integrating with the most commonly usage task tracking systems and version control systems. In this talk you'll learn how Mylyn can boost your productivity as a Java developer by letting you get the most out of your IDE.
This session explores some of the programming techniques that a powerful dynamic language enables, in particular meta-programming or the art of writing code that writes code. Meta-programming techniques are being used extensively in many successful frameworks based on dynamic languages such as Rails, Grails and countless others. Learn how you can use meta-programming in Groovy to improve and streamline your Java applications.
Learn how to build featured rich applications using the Eclipse Rich Client Platform. The Eclipse platform is an open tools platform, on top of this platform you can build your own applications (which do not need to be IDE like or IDE related). Yet you can enjoy the benefits of working with a mature and featured rich platform that can greatly reduce the amount of time required to create a professional-looking and robust Java UI application.