Session Schedule

By Paul Duvall

Increase feedback on your project by building your software with every change applied to your source code repository. The practice of Continuous Integration (CI) can be used to decrease the time between when a defect is introduced and when it is fixed.

You will learn how to get the CruiseControl CI server and a source code management repository to work together in a CI system. From a working reference implementation in Java, you will learn the attributes that make up an effective development platform for CI. Learn how to use the CI system as the centerpiece to your software development activities to create automated code reviews, generate diagrams and documentation, and detect anomalies on a continual basis. Paul will use CruiseControl, Subversion, Ant, JUnit, and other tools that can help you implement a powerful CI system.

By Paul Duvall

Design Patterns became part of the software development industry mainstream in the mid-1990s with the release of the Go4 Design Patterns book. Since then, architecture, design, and more recently, organizational patterns have become a part of our nomenclature. But, what about the software that helps us develop and deliver the software to our users: the software development infrastructure?

Paul will introduce you to patterns such as the Robot, Detector, Kitchen Sink, and Scorched Earth patterns that will help you build a robust software development infrastructure. The implementation of these patterns will help reduce common risks on your projects and allow you to focus on the interesting work of solving the unique problems of your users.

By Ben Galbraith

Too often, Swing applications are slow, ugly, and hard-to-maintain. It turns out that it doesn't have to be this way. Swing can be used to create highly-responsive, beautiful applications that are very maintainable. If this isn't consistent with your own experience, don't feel bad; its not very obvious how to make Swing sing.

In this session, I explore three topics that lead to much better Swing applications: Proper Swing threading High-quality third-party Swing look-and-feels Good practices for coding Swing applications In the threading portion of the session, I explain Swing's event handling architecture and its implications for Swing applications. Understanding this topic is crucial to creating highly-responsive Swing apps. I demonstrate how to use this knowledge in the form of many live-coded examples, and I show how frameworks like SwingWorker and FoxTrot can make this easier. Java's default look-and-feel, Metal, is awful (and in my opinion, the "Ocean" theme in JDK 5.0 doesn't do enough to improve it

By Ben Galbraith

Are you spending more time plumbing your Swing applications than solving business problems? Has your Swing application grown out of control? This session is for you.

In the first part of the presentation, I analyze the architectural problems that plague many Swing applications and present architectures that overcome these problems. These architectures are presented in terms of principles along with a reference implementation. You can therefore either adapt the principles to meet the needs of your existing applications, or incorporate the specific ideas of the reference implementation into your new projects. Fortunately, there are some existing frameworks that have done some of the architectural work already. I present some of these frameworks in the rest of the presentation.

By Ben Galbraith

For many of us, XML has become a ubiquitous presence in application development, whether parsing, validating, or manipulating it. For many of us, all that XML is coupled with pain, in the form of tedious APIs (like, say, the W3C DOM API) and confusing technologies (oh, I don't know, W3C XML Schema?).

In this session, I share the following tips for making the XML in our lives a little easier to deal with: - Use StAX instead of SAX - Use StAX to create XML - Use JDOM instead of W3C DOM - Use XPath to select XML - Use Jaxen to enable XPath over custom trees - Use RELAX NG instead of DTD or WXS - Use Trang when DTD/WXS output is required - Use Sun's RELAX NG Converter when WXS input is required - Consider RELAX NG's compact syntax - Use Schematron to extend schema languages - Consider XML namespaces for versioning - Ignore unknown namespaces

By Ben Galbraith

Ajax -- called DHTML just a few months ago -- has revolutionized (or "radically iterated", if you like) web application development in the short few months since the term was coined.

What is it all about? Why are we excited about a set of capabilites that have been sitting in our browser for years? What can you do with it? And, how can you do it?

Ajax, short for Asynchronous JavaScript and XML, is a technique for communicating with servers from within a web page without causing a page refresh. This session provides an introduction to Ajax and an orientation to the state of the ajaxian universe. The basic ajaxian techniques will be demonstrated through live coding, and more advanced examples of Ajax will be demonstrated and deconstructed. Attendees will understand how the Google Maps UI is built (and why it isn't as hard as it looks), how Ajax can improve portals, community sites, and pretty much any other type of web application. Furthermore, the issues surrounding how to create an Ajax application that doesn't turn into an unmain

By Ben Galbraith

In the "Introduction to Ajax" session, we discuss what Ajax is, how it works, and how others are using it.

This session goes deeper into Ajax by reviewing the existing JavaScript frameworks that aim to make it easier.

The scope of the frameworks is all over the made, from unit testing JavaScript to deconstructing other websites to making it easier to create your own ajaxian effects. If you want to easily add some Ajax to your site, come to this talk, presented by one or more of the founders of Ajaxian.com.

By Ben Galbraith

It sounded like such a good idea back in the mid-nineties: based the Java platform on a standards-based, open community, and let anyone participate. There is no question that Sun's strategy for Java's stewardship via the JCP and sponsored open-source has yielded some enormous benefits. However, these have not been enjoyed without tremendous cost.

Perhaps the recent pop-culture book The Paradox of Choice put it best: "When people have no choice, life is almost unbearable. As the number of available choices increases, [as it has in the Java community], the autonomy, control, and liberation this variety brings are powerful and positive. But as the number of choices keeps growing, negative aspects of having a multitude of options begin to appear. as the number of choices grows further, the negatives escalate until we become overloaded. At this point, choice no longer liberates, but debilitates. It might even be said to tyrannize." Does this ring true in your environment? Are you tired of spending countless hours evaluating IDEs, build s

By Ben Galbraith

You can do some pretty cool things with XML these days (despite what some curmudgeons in the technology world may claim). In the past few years, XML has solidified its place as the lingua franca of data sharing and data manipulation. But XML as a data transfer language is only marginally interesting. Things get really exciting when XML is dynamically transformed into other formats. In this session, I focus on two XML formats which can be readily transformed into high-quality presentation-centric output formats. XSL-FO is a typesetting format for XML that can be readily converted into PDF (or Postscript and some other formats). SVG is a vector graphics language in XML -- a sort of open-source version of the popular Macromedia Flash format. SVG files can be converted into beautiful, completely scalable -- and interactive - - images.

You can do some pretty cool things with XML these days (despite what some curmudgeons in the technology world may claim). In the past few years, XML has solidified its place as the lingua franca of data sharing and data manipulation. But XML as a data transfer language is only marginally interesting. Things get really exciting when XML is dynamically transformed into other formats. In this session, I focus on two XML formats which can be readily transformed into high-quality presentation-centric output formats. XSL-FO is a typesetting format for XML that can be readily converted into PDF (or Postscript and some other formats). SVG is a vector graphics language in XML -- a sort of open-source

By David Geary

Okay, so you know a little about JSF. You understand managed beans, action outcomes and how to attach standard JSF validators to components in a JSP page.

But there is a great deal of functionality that the average web application supports that JSF doesn't provide out of the box. For example, wouldn't you like to have JSF automatically place asteriks in front of labels for required fields? You are going to implement client-side validation, which JSF does not support out of the box, aren't you? Of course, you're going to test your application, right? And don't forget to trap unauthorized use of the back button.

How do you do all of that stuff in a JSF application? If those are the kinds of questions that keep you up at night, then this session is for you. We will explore the outer reaches of JSF development to illustrate how you can bend your next JSF application to your will.

By David Geary

JavaServer Faces is a well designed user interface framework, but it lacks a number of features you might otherwise expect out of the box; for example, JSF does not explicitly provide support for client-side validation.

So, from the folks that brought you Struts, comes Shale, a collection of useful enhancements to JSF. A top-level Apache Software Foundation project, Shale adds some really cool features to vanilla JSF, including:

Web flow: script dialog flow Remote Method Calls: easily call JavaBean methods from JavaScript Tapestry-like views: code views in pure HTML Use Apache Commons Validator validators on the client or server, or both JSF testing framework: mocks for easy JSF testing

There's a lot of cool stuff in Shale that makes JSF a much more compelling proposition. Come see what it's all about.

This is a code-intensive, fast-paced look at Apache Shale. Forty-plus slides and five demos makes for an action packed session that illustrates the cool features that Shale provides.

By Justin Gehtland

The Spring framework is one of the fastest growing open source frameworks. New job postings are gaining rapidly, and many customers are adopting Spring instead of heavier alternatives. In this session, we’ll introduce Spring. You’ll see how Spring can give you much of the power of EJB, without the complexity or pain.

Spring uses concepts like dependency injection and aspect oriented programming to ease standard enterprise development. Spring developers write plain, ordinary Java objects (POJOs), instead of sophisticated components. In this session, you’ll see a basic Spring application. You’ll also see some details about some of the enterprise integration strategies, including:

• Spring AOP • Transactions • Persistence • Model/view/controller

When the session is over, you won’t be an expert, but you should have a much clearer understanding of what Spring does, what it doesn’t do, and why it’s growing so rapidly.

This session, for the Spring beginner, helps you: • Understand dependency injection and inversion of control • Know the meaning of lightweight containers and Spring • Understand the basic pieces of Spring • See core Spring modules in action, including Persistence, AOP, transactions. Attendees need not know anything about Spring. This session does talk about integration with core J2EE frameworks like JDBC and transactions.

By Justin Gehtland

The Spring team, as in all things they do, have learned the valuable lessons of the past when introducing a Spring solution. Spring MVC is everything Struts should be, and more besides.

This talk will introduce you to the Spring web application framework. You'll find out about the Controller hierarchy, and how the different kinds of Controllers allow for a more manageable logic tier. We'll look at validation and exception handling, configuration, URL mapping and CommandControllers (Spring's answer to ActionForms). Finally, we'll look at Spring's integration with another powerful web framework, Tapestry.

By Justin Gehtland

Web Services are message-oriented. This means that any application intention (the need for security, for transactionality, for reliability, etc.) must be included in the message and not just assumed as external context. The WS-Security specifications are very advanced and currently being used in the wild to create robust, secure web services.

This session will examine these specifications, including: • WS-Security • WS-Policy - for sharing enforcement and encryption strategies • WS-Privacy - for agreeing on privacy policy for service usage • WS-Encryption - for encrypting or signing all or part of a message • WS-Trust - for creating a single-sign-on solution • WS-Federation - works with WS-Trust These specifications, plus others like WS-Addressing and WS-Notification, provide a platform for communicating security intent across multiple network layers and many platforms. Of course, these specifications only define modifications to the messagapplication author. We will demonstate these capabilities using the Axis toolkit a

By Justin Gehtland

O/RM (Object/Relational Mapping) seeks to eliminate repetitive or tedious work enabling the CRUD (create, read, update, delete) that underlies most applications. Hibernate is a popular, open-source O/RM tool that uses reflection (instead of code generation, like EJB, or bytecode injection, like JDO) to manage your persistence layer. This session will introduce you to Hibernate. After an overview of common usage scenarios, including web and enterprise applications, we'll examine the basics of getting Hibernate running. We'll cover the mapping file format and syntax, including common relational mapping structures. Then, we'll examine the Hibernate API for interacting with the framework. Finally, we'll cover the common architectural decisions you'll have to make as you include this (or any other) O/RM framework.

O/RM (Object/Relational Mapping) seeks to eliminate repetitive or tedious work enabling the CRUD (create, read, update, delete) that underlies most applications. Hibernate is a popular, open-source O/RM tool that uses reflection (instead of code generation, like EJB, or bytecode injection, like JDO) to manage your persistence layer. This session will introduce you to Hibernate. After an overview of common usage scenarios, including web and enterprise applications, we'll examine the basics of getting Hibernate running. We'll cover the mapping file format and syntax, including common relational mapping structures. Then, we'll examine the Hibernate API for interacting with the framework. Finall

By Justin Gehtland

Hibernate is easy to get started with, but can sometimes be hard to make efficient or secure. In fact, the default settings for Hibernate createapplications that will run slowly, cause unwanted round trips to the database, and may be more restrictive and/or permissive from a security standpointthan you would otherwise want.

This session will show advanced techniques for tuning performance, including: • advanced collection mapping strategies • lazy loading • cascading update management • lifecycle management • Hibernate's interceptor layer In addition, we'll examine the security considerations when using Hibernate. Often, single-credential data access isn't enough for sensitive data. We'll walk through using per-user credentials for data access, logging security information about and through Hibernate, and accessing data sources through secure application servers.

By Brian Goetz

JDK 5.0 is a huge step forward in developing concurrent Java classes and applications, providing a rich set of high-level concurrency building blocks.

Prior to the release of JDK 5.0, the Java platform provided basic primitives for writing concurrent programs, but they were just that -- primitive -- and difficult to use properly. Building multithreaded applications on the Java platform's low-level concurrency primitives posed many traps for the unwary, and many developers were forced to reinvent the wheel by writing their own classes for thread pools, semaphores, and task schedulers. To help users create robust, scalable, and (most importantly) correct multithreaded applications, JDK 5.0 includes a rich set of high-level concurrency constructs, such as thread pools, semaphores, mutexes, barriers, and high-performance concurrent collectio

By Brian Goetz

Pop quiz: which is faster, Java or C++? If you are talking about allocation performance, the answer is Java, hands-down.

The performance of the garbage collector in the HotSpot JVM has improved steadily since JDK 1.0. The early garbage collectors were criticized for poor performance, but, except for some edge cases, garbage collection performance in HotSpot is now so good that allocation is an area where Java programs handily outperform comparable C++ programs. The early JVMs used a simple mark-sweep collector, which was easy to implement and worked well enough for short-lived, small-heap applications. Current JVMs use a generational garbage collection approach, using different collection strategies for different areas of the heap, which for typical applications, offers excellent throughput and short paus

By Brian Goetz

What's the worst thing that can happen when you fail to synchronize in a concurrent Java program? Its probably worse than you think -- modern shared-memory processors can do some pretty weird things when left to their own devices.

Java was the first mainstream programming language to incorporate a formal, cross-platform memory model, which is what enabled the development of write-once, run-anywhere concurrent classes. It is the Java Memory model that defines the semantics of synchronized, volatile, and final. However, because the most commonly used processors (Intel and Sparc) offer stronger memory models than is required by the JMM, many developers frequently use synchronization and volatile incorrectly, but have been insulated from failure by the stronger memory guarantees offered by the processor architecture they happen to be deploying on. (The infamous "double checked locking" idiom is an example of this sor

By Brian Goetz

Does your program have bugs, despite unit tests, integration tests, and code reviews? You bet. Are you using static analysis as part of your QA process? If not, you're probably missing out on some bugs that can be caught before they bite your customers.

The cost of finding a bug increases dramatically the longer it lurks without being discovered. Fortunately, today?s development tools (IDEs and compilers) can identify many potential bugs within a few seconds of their creation, resulting in higher quality code and more productive programmers. However, even the best programmers can create bugs that are very hard to spot if they make it through their first few minutes of their existence. Until recently, automated code analyzers have not been very useful for mainstream developers. Most code analysis packages focused either on stylistic issues (such as indenting and variable naming), or on formal correctness proofs (which require an investme

By Stuart Halloway

JUnit is great. Jython and JRuby are even better. Unit testing libraries look the same everywhere, so why not use the one that lets you get your job done faster?

Unit testing has taken the world by storm. Almost every major language has a JUnit-like library. And here's the good news: These libraries are so similar that once you learn one, you can use any of them. Given that many languages interoperate directly with Java, you aren't limited to JUnit. You can pick the library that provides the best language level support for writing concise, easily maintainable unit tests. Circa late 2005, there are good arguments for the unittest module in Jython, and Test::Unit in JRuby. The talk is divided into three parts: A crash introduction to unit testing Java code. We'll cover test-driven development, test cases, assertions, fixtures, and test suites. We'l

By Stuart Halloway

For centuries people have used crypto to build (and break) secure systems. Computers have only raised the pitch of conflict, providing enormous cryptographic power at commodity prices. Most programmers do not write their own crypto libraries, instead relying on the services of an operating system or virtual machine. But even with all this support, building secure systems is a daunting task.

This talk will cover three things all programmers need to know: 1. the basic tools of computer crypto 2. the programmatic APIs to these tools 3. common programming mistakes that can undermine otherwise secure systems You will learn the basics of hashing, message digests, public key encryption, symmetric key encryption, certificates, and key management. With each, you will see programmatic examples, with advice for correct usage.

By Stuart Halloway

The Java platform is built from the ground up with security in mind. This talk will introduce the security features of the J2SE, building quickly from the basic classes to realistic examples.

You will learn the core APIs: SecurityManager, AccessController, Permissions and Policy JAAS Subjects, Principals, and LoginModules You will then see how to invoke these APIs in real application scenarios. You will learn how to: Partition your applications to safely invoke downloaded code Read and write Java policy files Extend the architecture with custom permissions Provide secure services through PrivilegedActions Use JAAS to authenticate and authorize users

By Stuart Halloway

(3 Hour Session) Attendees should attend the Introduction to Reflection talk, or have some experience using reflection or metaprogamming in a reflective language such as Java, Objective-C, Smalltalk, Python, or Ruby. Familiarity with the GOF book is helpful but not required.

Design patterns are recurring solutions to problems that consistently appear in software development. However, this does not mean that design patterns cannot be "solved", i.e. converted into language or library features. In fact, most of the original design patterns can be solved using dynamic language features such as reflection.

This talk covers specific design patterns, and shows multiple implementations of each, demonstrating how reflection and other dynamic techniques make the patterns invisible, freeing you to concentrate on solving new problems. In part A I cover • Abstract Factory • Almost-Real Objects (a variant of mock objects) • Singleton In part B I cover • Iterator • Flyweight • Observer • Dynamic Agile Development

By Stuart Halloway

(3 Hour Session) Attendees should attend the Introduction to Reflection talk, or have some experience using reflection or metaprogamming in a reflective language such as Java, Objective-C, Smalltalk, Python, or Ruby. Familiarity with the GOF book is helpful but not required.

Design patterns are recurring solutions to problems that consistently appear in software development. However, this does not mean that design patterns cannot be "solved", i.e. converted into language or library features. In fact, most of the original design patterns can be solved using dynamic language features such as reflection.

This talk covers specific design patterns, and shows multiple implementations of each, demonstrating how reflection and other dynamic techniques make the patterns invisible, freeing you to concentrate on solving new problems. In part A I cover • Abstract Factory • Almost-Real Objects (a variant of mock objects) • Singleton In part B I cover • Iterator • Flyweight • Observer • Dynamic Agile Development

By Ramnivas Laddad

J2EE has become the main new platform for enterprise application deployment. Good performance is an important business requirement. Supporting this requirement needs application profiling during the development phases and performance monitoring after application deployment. Come to this session to understand challenges and choices in monitoring J2EE applications.

Performance monitoring solutions must work under constraints imposed by the environment. Further, they must balance conflicting requirements such as overhead vs. richness of information. All of these need careful understanding of both requirements and solutions as well as the costs of any tradeoff decisions. This session presents various tools and techniques available for monitoring J2EE applications. We will consider requirements of performance monitoring solutions in different scenarios. We will also discuss underlying enabling technologies such as Java Virtual Machine Profiling Interface (JVMPI), Java Virtual Machine Tool Interface (JVMTI), JFluid, JMX, design patterns, and aspect-orien

By Ramnivas Laddad

Aspect Oriented Programming (AOP) enables modularizing implementation of crosscutting concerns that abound in practice: logging, tracing, dynamic profiling, error handling, service-level agreement, policy enforcement, pooling, caching, concurrency control, security, transaction management, business rules, and so forth. Traditional implementation of these concerns requires you to fuse their implementation with the core concern of a module. With AOP, you can implement each of the concerns in a separate module called aspect. The result of such modular implementation is simplified design, improved understandability, improved quality, reduced time to market, and expedited response to system requirement changes. Come to this session and learn all about how AOP can help you simplify developing complex systems.

AspectJ (http://eclipse.org/aspectj) is the leading implementation of AOP for the Java programming language. AspectJ is a new language as well as its implementation. The output produced by the AspectJ compiler is compatible with the Java byte code specification. Further, AspectJ is well integrated with the most commonly used IDEs, which makes the Java developer more productive. This session is targeted at the developer with no or little familiarity with AOP and AspectJ. It will introduce AOP’s concepts and the AspectJ programming language, along with many examples and live coding to solidify the concepts learned. After attending the session, you will have a clear idea about AOP's value and

By Ramnivas Laddad

Aspect Oriented Programming (AOP) enables modularizing implementation of crosscutting concerns that abound in practice: logging, tracing, dynamic profiling, error handling, service-level agreement, policy enforcement, pooling, caching, concurrency control, security, transaction management, business rules, and so forth. Traditional implementation of these concerns requires you to fuse their implementation with the core concern of a module. With AOP, you can implement each of the concerns in a separate module called aspect. The result of such modular implementation is simplified design, improved understandability, improved quality, reduced time to market, and expedited response to system requirement changes. Come to this session and learn all about how AOP can help you simplify developing complex systems.

AspectJ (http://eclipse.org/aspectj) is the leading implementation of AOP for the Java programming language. AspectJ is a new language as well as its implementation. The output produced by the AspectJ compiler is compatible with the Java byte code specification. Further, AspectJ is well integrated with the most commonly used IDEs, which makes the Java developer more productive. This session is targeted at the developer with no or little familiarity with AOP and AspectJ. It will introduce AOP’s concepts and the AspectJ programming language, along with many examples and live coding to solidify the concepts learned. After attending the session, you will have a clear idea about AOP's value and

By Ramnivas Laddad

A lot is happening in the field of Aspect-oriented programming (AOP). AspectJ and AspectWerkz, the two leading AOP implementations, have merged, bringing in their respective strengths. The merged version, AspectJ 5, adds many new features aimed at simplifying writing and deploying aspects. The new features include an annotation-based and XML-based syntax to define aspects, support for new Java 5 concepts, and load-time weaving. The tools support for AOP continues to improve, as well. Further, the most popular IOC framework, Spring, enables integrating aspects written in AspectJ. There is also serious discussion and preliminary work going on to support AOP right into the VM itself. All in all, there is a lot to learn about the changes in the exciting field of AOP. This session is designed to help you get up to date with all these changes.

This session provides a guided tour of the new things in the AOP world. It explains new features in AspectJ along with the practical considerations in utilizing each of them. The presentation explores the fundamental synergy between AOP and metadata to understand right (and wrong) utilization of metadata-based crosscutting. Load-time weaving (LTW) enables adding aspects to your existing applications deployed in any application server with a minimal effort. The presentation shows how to utilize LTW to improve your productivity considerably, even if you don't yet subscribe to the AOP philosophy and don't want to use AOP in production. The presentation also demos the latest AspectJ Development

By Mark Richards

The new EJB 3.0 spec (JSR-220) offers some great improvements over the prior EJB specs in terms of development simplicity and new features. In this session we will take a look at the new EJB 3.0 spec and the new Java Persistence API. Included in this session will be a discussion about Java metadata annotations, simplification of enterprise beans (session and message-driven beans), interceptors, changes in transaction processing, and how the new Java Persistence API works. During the session I will be demonstrating how the EJB 3.0 spec differs from the EJB 2.1 spec through code example comparisons. I will also be discussing how the new Java Persistence API compares to related Java persistence options and whether we should be excited about the new persistence API or (yawn) sticking with what we have.

Agenda - Introduction - EJB 3.0 New Features Summary - Java MetaData Annotations – no more ejb-jar.xml? - Constructing and accessing an EJB 3.0 Session Bean - EJB 3.0 Transactions - Interceptors and use of the @AroundInvoke annotation - Entities and the Java Persistence API

By Mark Richards

There has been a significant amount of buzz in the community and industry about the definition and role of an Enterprise Service Bus (ESB), particularly within the area of Service-Oriented Architecture (SOA). In this product-agnostic high energy session we will take a step back and consider whether we really need an ESB. Through real-world application and architecture scenarios we will see where an ESB would be helpful and where it would be overkill. We will take a look under the hood and find out just what an ESB is really doing, and take a quick look at JBI (JSR-208) and see the impact it has on the ESB worls. Then, using product-agnostic coding examples we will learn what an Enterprise Service Bus is supposed to do, then answer the question about whether the ESB is just a bunch of hype or if we really need it.

Agenda - Introduction - Handling Distributed Services Today - ESB Alternatives - Services - ESB Capabilities - Rolling Your Own: Possible Java Implementations - ESB Use Cases - JBI (JSR-208) - Summary and Q&A

By Mark Richards

Tired of dealing with EJBs but cannot use other frameworks like Spring? How would you like to replace all of your remote Stateless Session Beans with POJOs and still access them remotely within Java EE? By using the Java EE Command Pattern we can write EJBs as POJOs and solve many of the issues facing EJB, including testability, configuration complexity, and performance, and still remain within the boundaries of the Java EE container. The Java EE Command Pattern is a simple pattern that can significantly reduce the complexity of large-scale Java EE enterprise applications. In this session we will explore the numerous issues facing a typical EJB architecture and learn how the use of the Java EE Command Pattern can solve these issues. We will walk through the different design alternatives and see how the command pattern is implemented in both EJB3 and in Spring. Through interactive coding examples you will learn what components make up the Command Pattern framework and what simple coding changes are required to convert a complex remote EJB-based application to a much simpler remote POJO-based application.

Agenda - Issues with J2EE - Java EE Command Pattern Introduction - Java EE Command Pattern Core Components - The Command Pattern Framework Implementation (EJB) - The Command Pattern Framework Implementation (Spring/RMI) - Applying the Command Pattern to a Typical EJB Application

By Mark Richards

As companies continue to change the way they do business, so must the IT systems that support the business. Changes due to regulatory requirements, competitive advantage, mergers, acquisitions, and industry trends require flexible IT systems to meet the demands of the business. Software Architects must therefore make their architectures more agile to meet the flexible demands of today's business. Through real-world examples and scenarios we will explore some of the challenges facing Software Architecture and discuss several concrete techniques for applying agility to both the architecture process and the technical architecture itself. We will also look at various architecture refactoring techniques, and discuss the pros and cons of each. By attending this session you will learn how to apply various agile techniques to improve your architectures and overcome some of the challenges facing software architecture in today's ever-changing market.

Agenda: - Introduction - Part One: Applying Agility to Architecture (Interactive) - Part Two: Agile Methodologies - FDD - Part Three: Agility and Architectural Refactoring

By Ian Roughley

Code coverage is generally viewed as a metrics that managers use to chart progress, a number that has to be blindly attained. In this talk we discuss everything that you, the developer, need to know to make it more than a number and part of a process that will improve code quality.

We will cover what code coverage is and what it can do for you; how it can be incorporated into your development and build processes; and how to interpret the results. Finally, alternate usage scenarios will be discussed that will help you better understand the application you are building.

By Ian Roughley

Many companies and most, if not all, software today utilizes open source. Whether it is databases, application servers, frameworks or libraries, these projects are fast becoming a standard commodity for building business-related functionality upon and speeding up development time. Sometimes technology evaluations are done, but frequently the library is simply slipped into the code base to address an urgent requirement - often without evaluating the technology beyond the immediate need.

In this talk I will address this and many other facets that need to be considered when utilizing open source in your project – how open source evaluation should be different from other product evaluation; guidelines for implementing corporate procedures; the benefits of companies contributing back into the open source community; and legal aspects that every developer should be aware of.

By Venkat Subramaniam

Agile development is picking up steam. You have heard about eXtreme Programming(XP). What other Agile methodologies are you familar with and what do they bring of interest or significant to the table of Agility? More important, why should you learn about these different methodologies instead of simply focusing on one? There is no one shoe that fits all. Any methodology that requires you to follow it in totality and not let you adapt is rather dogmatic, not pragmatic. To be effective we have to take the best of different approaches and apply to our projects base on our specific needs.

In this session, we will look at different methodologies (XP, Scrum, FDD, Crystal, ...) that promote agility. We then will compare and contrast the features of each. You can take away from the presentation what makes the most sense for your project and team.

By Venkat Subramaniam

You are convinced that Test Driven Development is good for you and your project. You realize the benefits it has to offer. What's holding you back? All the code and components that your code so heavily depends on is most likely making you wonder if TDD is really for you. We will start out by looking at dependency and dependency inversion. Then we will discuss how mock objects can help separate our code from its dependencies.

In this presentation, we will take an examples oriented approach to utilizing mock objects. We will first hand toss a mock and see how our code benefits from it. Then we will take a look at using frameworks that can assist with the creation of mocks.

By Venkat Subramaniam

A number of new features have been introduced in Java. What benefit do these features offer you. Are there issues with using these features. For instance, when should you use annotation? The objective of this presentation is not simply to introduce you to the features, but to the effective use of these as well.

We will take a close look at a number of features that you will be expected to know well when you program using Java 5.

By Venkat Subramaniam

Is your code object-oriented? Developing with objects involves more than using languages like Java, C#, C++ or Smalltalk for that matter. From time to time, the OO paradigm stumps even expert developers. Agile programming becomes a mere act of hack if we code without knowing the OO principles. What are these principles – the ones that influence your design? In this presentation the speaker will present some of the challenges that are fundamental in nature. Then he will present OO Design principles and good practices for prudent development of OO code.

Topics: • Metrics of design • Good design vs. bad design • Perils of design • Principles for OO Design • Examples that illustrate the principles Benefits: • Learn principles that lead to better design • Learn fundamentals that will change the way you will code • Gain insight into the design tools needed for agile development • Helps improve the quality of your system • Better your design skills

By Venkat Subramaniam

Java introduced Generics in the 1.5 version (Java 5). What are the capabilities of Generics? How do you use it? Are there some gotchas in using it? In this example driven presentation, we will start at the basics of generics and look at its capabilities. We will then look at some of the under the hood details on generics implementation. We will then delve into the details of some of the changes to Java libraries to accommodate generics. Finally we will take a look at some restrictions and pitfalls that we need to be familiar with when it comes to practical and prudent use of generics.

Topics: • Need for Generics • Generics in Java • Bounded Parameters • Wildcard • Restrictions • Generics Implementation • Effect of Erasure • Java libraries changes • Pitfalls and pragmatics Benefits: • Know your generics • See how to create your own generics • Understand issues with converting to genetics • Learn the limitations • Attain the wisdom • Decide if this if for your project

By Bruce Tate

This session, for the Spring beginner, helps you: • Understand dependency injection and inversion of control • Know the meaning of lightweight containers and Spring • Understand the basic pieces of Spring • See core Spring modules in action, including Persistence, AOP, transactions.

Attendees need not know anything about Spring. This session does talk about integration with core J2EE frameworks like JDBC and transactions.

The Spring framework is one of the fastest growing open source frameworks. New job postings are gaining rapidly, and many customers are adopting Spring instead of heavier alternatives. In this session, we’ll introduce Spring. You’ll see how Spring can give you much of the power of EJB, without the complexity or pain. Spring uses concepts like dependency injection and aspect oriented programming to ease standard enterprise development. Spring developers write plain, ordinary Java objects (POJOs), instead of sophisticated components. In this session, you’ll see a basic Spring application. You’ll also see some details about some of the enterprise integration strategies, including: • Spring

By Bruce Tate

All programming languages have a limited life span, and Java is no different. This is a philosophical session rather than a programming session. Sooner or later, Java will lose its leadership position. This session will explore Java's strengths and weaknesses. We'll try to understand whether conditions are ripe for alternatives to emerge, and what those alternatives may be.

The Java programming language has been tremendously successful. Many of the roots of its success may be surprising to the audience. But every major programming language has a limited life cycle. While it’s true that Java and .NET seem to be the only games in town, some alternatives are beginning to emerge. In this session, we’ll discuss some of the limitations of the Java language, and the impact that they might have on the productivity of Java developers. We’ll then look at some of the innovations around other frameworks and languages, and some of the features of those languages that boost the productivity of other non-Java developers: • Typing, and why it matters • Code blocks and closur

By Bruce Tate

Agile programming is a collection of core principles and techniques that allow software developers to create lighter, more responsive applications, and to have fun doing it. Many established organizations are either openly or sub-conciously hostile to many of the principles of Agile development.

We'll explore the intersection of these new practices and old-world sensibilities, relying on real-world case studies to illustrate some of the compromises that are necessary to bridge the gap. In addition to technical and process aspects, we'll also spend some time talking about the business aspects, such as how Agile development affects contracts.

By Dave Thomas

Are you frustrated by experts who can't tell you what to do, or by junior team members who refuse to see the big picture? How can you best develop careers: both yours and those of your teammates and managers? How can we learn to apply experience more effectively, and why do the many approaches designed to tame complexity actually end up increasing it?

Dave Thomas, of The Pragmatic Programmers, describes the solutions to these and other problems as he turns the Pragmatic Spotlight (and a good dose of twisted humor) on formal learning models, the Nursing profession, and streamlining sheep.

By Dave Thomas

Ruby recently enjoyed its tenth birthday. Instead of cake and candles, the community celebrated by releasing a wave of new libraries and frameworks that make Ruby programming even easier. This talk features some of the best of these, as we explore Ruby.

We'll spend about half the session getting to know Ruby: the syntax, type system, blocks, iterators, and so on. Then we'll dive in and develop some real-world code using web services, RSS, and databases. If you want to come to the Rails talk, and you're not that familiar with Ruby, this talk is a good starting point.

By Dave Thomas

The Ruby on Rails framework has exploded onto the scene over the last few months. Propelled by some genuine benefits, and fueled by a whole lot of controversy, Rails seems here to stay. So, is it a Java killer? (No.) Is it a great way to develop certain classes of web application? (Yes.) Does it really deliver the 10-fold increase in developer productivity that some have claimed? (It depends...)

If you can't help thinking that there must be an easier way of developing web projects, come and join us as we construct an MVC-based Ruby on Rails application using the very latest libraries and tools. You'll get a taste of Ruby, and also a feel for some of the power and productivity gains offered by this remarkable framework. You'll need a grounding in Ruby to get the most from this talk; if you're not already a Ruby developer you might want to attend the Facets of Ruby talk before coming to this one.