Speakers


Pratik Patel

Enterprise Architect

Pratik Patel wrote the first book on 'enterprise Java' in 1996, "Java Database Programming with JDBC." He has also spoken at various conferences such as the Net Database Summit, WWW7 and the Atlanta Java User's Group (AJUG). Pratik currently runs the Atlanta Groovy and Grails User Group (ATL2G) as well as actively participating & presenting in the Atlanta Spring UG and Atlanta Java UG.

Pratik's specialty is in large-scale Java applications for mission-critical use. He has designed and built enterprise applications in the retail, health care, financial services, and telecoms sectors. Pratik holds a master's in Biomedical Engineering from UNC, has worked in places such as New York, London, and Hong Kong, and currently lives in Atlanta, GA.

Blog

Why developers agree more often than disagree

Posted Monday, April 19, 2010

Recently I've seen some interesting blog posts from attendees of No Fluff Just Stuff conferences (nfjs). These posts essentially say this: the speakers agree too much with each other. I'd like to more »

Solution: FUTEX_WAIT hangs Java on Linux / Ubuntu in vmware or virtual box

Posted Sunday, January 24, 2010

Ok, I'm documenting this for those that hit this same problem. Is it taking a LONG time to run some Java app, making it seemingly hang? This happens  when running Ubuntu more »

Diggin' Clojure and Compojure

Posted Wednesday, January 13, 2010

Over the xmas holidays I started learning Clojure. I'd been putting it off for a long time (since I saw Stuart Halloway present on it 9 months ago) so I read carefully through this lengthy article on Clojure more »

Grails was so electric, it brought down the power grid

Posted Wednesday, November 18, 2009

Last nite's AJUG started off great. Burr, our venerable AJUG leader, started with a discussion on what stuff people wanted to see covered in AJUG in 2010. more »

Get RAD with Grails @ AJUG Nov 17

Posted Friday, November 13, 2009

I'm pleased to be presenting a session on Grails at the Atlanta Java User's Group (AJUG) next week. See details hereAJUG This is an intro level session, but I'm hoping people ask some advanced questions so I can more »
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Presentations

Groovy and Grails in the Enterprise

Dynamic languages running on the Java Virtual Machine are starting to gain traction for software development, specifically for large enterprise projects. This session explores obstacles to introducing dynamic languages into the enterprise, example applica more »

Virtualization for development

We've all heard about virtualization for deploying applications. How about leveraging virtualization for development? In this session, we'll look at some time saving tips and build a virtual VM for development and testing. more »

Enterprise JPA & Spring 3.0 - Tips and Tricks for JEE Persistence

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 more »

There's a Plugin for that!

The objective of this session is to give the attendee a survey of the many useful plugins for the Grails platform. The presenter will also give his top ten list of Grails plugins, all in an entertaining style. We'll do deep dives into the internal working more »

Enterprise Spring JMS

Spring provides a number of nice utilities for developing with JMS. These libraries are low-level, giving you total control in code. However, with this great power you must carefully think about how you design your application. more »

Groovy and Grails in the Enterprise

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Pratik Patel By Pratik Patel

Dynamic languages running on the Java Virtual Machine are starting to gain traction for software development, specifically for large enterprise projects. This session explores obstacles to introducing dynamic languages into the enterprise, example applications that can ease the way, and issues surrounding integrating a dynamic language to Java projects. Using several code examples that demonstrate the power of using a dynamic language like Jruby or Groovy, attendees will gain insight into how dynamic languages are making in-roads to the enterprise. This session focuses on non-GUI related usages – whereas most people think of dynamic languages for Web development. The target audience for this session is enterprise developers and enterprise architects.



Dynamic Languages for the JVM for the enterprise Why even bother using a dynamic language when Java works for me? When's the right time to use a dynamic language? Where's the right place to start using a dynamic language? Obstacles you'll face: political, developer training, integration Aren't dynamic languages just good for Web stuff? Examples of dynamic languages in the enterprise Code demo: sophisticated scripting on the JVM – building integrating with databases and messaging (JMS)


Virtualization for development

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Pratik Patel By Pratik Patel

We've all heard about virtualization for deploying applications. How about leveraging virtualization for development? In this session, we'll look at some time saving tips and build a virtual VM for development and testing.



Developer can make creative use of virtualization software like VMWare for development. In this session, we'll discuss how to create a virtual development environment and the benefits of doing so. We'll also look at several great ways to use virtualization for other development and testing tasks. Driven by demos and live usage of virtualization, the attendee will gain insight into virtualization and how it can be applied to make development tasks easier.


Enterprise JPA & Spring 3.0 - Tips and Tricks for JEE Persistence

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Pratik Patel By Pratik Patel

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 with a focus on the new persistence features in Spring 3.0 and JPA 2.0.



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.

Many enterprise applications require integration with an application server's JTA mechanism. JTA integration allows for JPA components to work with container managed transactions and distributed transactions. A typical usage scenario for JPA & JTA is this: read from a database using JPA, perform some business logic, put a message on a queue, write to the database (again using JPA). A JTA transaction allows you to ensure that the entire set of operations is committed or a rollback is performed. In this presentation, the developer will understand the limitations and configuration of using JTA and JPA together ? primarily through real code examples.

Once unit tests are written, developers often gloss over doing fine-grained integration testing just for their persistence layer. Integration testing with JPA means simply one thing: running your JPA components against your target database, for example, Oracle. Overlooking this aspect leads to problems being discovered later in the test cycle (UAT for example) and makes it more difficult to find and fix bugs. This presentation will use live code examples to explain a strategy for getting integration testing for free by reusing unit tests.

Using optimistic locking versus pessimistic locking seems clear cut to most developers. However, a full understanding of the issues with using pessimistic, or datastore, locking is required before making this decision. Developers will get information in the trade offs when using strategy or the other, and how these strategies can be used together with the same persistence unit.


There's a Plugin for that!

close

Pratik Patel By Pratik Patel

The objective of this session is to give the attendee a survey of the many useful plugins for the Grails platform. The presenter will also give his top ten list of Grails plugins, all in an entertaining style. We'll do deep dives into the internal working of these Grails plugins so you can understand and troubleshoot Grails plugins effectively. This session is also valuable for those looking to develop plugins - the attendee will gain insight into the many techniques used to integrate plugins into the Grails framework.



We'll look at the presenter's favourite Grails plugins in tv-show style count-down. This will help the attendee learn about the most used and most useful plugins. The attendees are also encouraged to share their experiences with plugins.


Enterprise Spring JMS

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Pratik Patel By Pratik Patel

Spring provides a number of nice utilities for developing with JMS. These libraries are low-level, giving you total control in code. However, with this great power you must carefully think about how you design your application. This session covers tips and tricks for working with Spring and JMS for large scale applications.



In this session we'll do a review of the JMS capabilities of the Spring framework. It is expected that the attendee will have basic Spring and basic JMS knowledge. We'll look at code for reading and publishing to JMS. The focus of this session is the usage of Spring in a high throughput environment - hence we'll spend time discussing connection caching, pooling, and reconnection. We'll also look at other libraries that can help you do more advanced messaging than the low-level tools in the base Spring framework.



Books

by Pratik Patel and Karl Moss

Visual Developer Java Database Programming with JDBC, 2nd Edition: The Essentials for Developing Databases for Internet and Intranet Applications Buy from Amazon
Price: $39.99
  • Java Database Programming with JDBC by Pratik Patel and Karl Moss is an updated edition of the authors' guide to the Java Database Connectivity (JDBC) standard for database programming under Java. While the original edition was perhaps geared more to those developers who needed to write their own JDBC database drivers, a fairly arduous task, this new edition provides more background information on database connectivity issues in Java and so will be even more useful to the casual or intermediate programmer. After a general introduction to JDBC and Structured Query Language (SQL), useful even to beginning programmers, the authors start by building a simple database-aware applet. New chapters on "servlets," Java components that run on the server-side and manage database operations, as well as a general discussion of middleware technologies are particularly good. Database access for JavaBean components (from Sun Microsystems JDK 1.1) is also discussed, including working code for two database-aware beans. This book also includes a quick introduction to the Java language (which will only be helpful if you already know C/C++), a detailed reference for the JDBC API, and a working example of a text-based JDBC driver. Though this book is still oriented toward the JDBC driver developer, the authors now provide enough general discussion of JDBC architectural issues to make it worthwhile to any programmer who needs to ramp up on what JDBC is and what capabilities it offers.

by Pratik Patel and Karl Moss

Java Database Programming with JDBC: Discover the Essentials for Developing Databases for Internet and Intranet Applications Buy from Amazon
Price: $39.99
  • Java Database Programming with JDBC by Pratik Patel and Karl Moss is an updated edition of the authors' guide to the Java Database Connectivity (JDBC) standard for database programming under Java. While the original edition was perhaps geared more to those developers who needed to write their own JDBC database drivers, a fairly arduous task, this new edition provides more background information on database connectivity issues in Java and so will be even more useful to the casual or intermediate programmer. After a general introduction to JDBC and Structured Query Language (SQL), useful even to beginning programmers, the authors start by building a simple database-aware applet. New chapters on "servlets," Java components that run on the server-side and manage database operations, as well as a general discussion of middleware technologies are particularly good. Database access for JavaBean components (from Sun Microsystems JDK 1.1) is also discussed, including working code for two database-aware beans. This book also includes a quick introduction to the Java language (which will only be helpful if you already know C/C++), a detailed reference for the JDBC API, and a working example of a text-based JDBC driver. Though this book is still oriented toward the JDBC driver developer, the authors now provide enough general discussion of JDBC architectural issues to make it worthwhile to any programmer who needs to ramp up on what JDBC is and what capabilities it offers.

by Pratik R. Patel, Alan D. Hudson, and Donald A. Ball

Java Programming for the Internet: A Guide to Creating Dynamic, Interactive Internet Applications Buy from Amazon
Price: $49.95
  • Enables readers to master the Java programming language for internet applications while expanding the scope of online development, and the accompanying CD contains powerful sample applets and a copy of Netscape Navigator. Original. (Intermediate).