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DataMapper on Infinispan: Clustered NoSQL

Posted by Lance Ball  on  Nov 28, 2011 1

Lance Ball presents DataMapper, a Ruby ORM library, along with Infinispan, Hibernate Search, Lucene, all running on JBoss AS7 and accessed through TorqueBox, a JRuby application server.

Introducing Apache Tomcat 7

Posted by Mark Thomas  on  Feb 07, 2011 1

Mark Thomas reviews some of the new features available in Apache Tomcat 7, including: Servlet 3.0, JSP 2.2, EL 2.2, asynchronous request processing, memory leak protection, and security improvements.

Modern SOA Infrastructure and Open Source

Posted by Mark Little  on  Jan 12, 2011

Mark Little presents the constituents of a modern SOI and where open source implementations stand in terms of standards, tools, ease of use, performance and reliability, making a case for using open source against close source solutions.

What’s New in dm Server 2.0?

Posted by Ben Hale  on  Mar 04, 2010

Ben Hale demoes what’s new in dm Server 2.0. In the Programming Model: using web bundles instead of web modules, using SLF4J/LogBack instead of Log4J, using Plans besides PARs, the Integrated ConfigAdmin. Runtime changes: remote repository for dynamic bundle download, improved web-based admin console, SSH-enabled command line console, unified username/password store.

Evolving the Key/Value Programming Model to a Higher Level

Posted by Billy Newport  on  Jan 19, 2010 6

In this presentation from QCon San Francisco 2009, Billy Newport discusses the ways that developers interact with key/value (KV) stores such as memcached and WebSphere eXtreme Scale, entity vs column-oriented approaches, synchronous and asynchronous operations, large data sets, using a DBMS as a column store, collocating closures and data, and features that could be added to increase scalability.

Pimp My Architecture

Posted by Dan North  on  Nov 12, 2009 8

Dan North discusses an example of rearchitecting an application without rewriting it from scratch, and explains general strategies for a holistic rearchitecture such as changing the team culture, removing obsolete technologies, allowing mistakes to be made (and learned from), transitional architectures, introducing bounded contexts, refactoring and emergent simplicity, and rotating through roles.

Pouring Data on Troubled Markets - Quantitative Portfolio Management Technology at BGI

Posted by Eoin Woods  on  Nov 05, 2009

Eoin Woods explains how Barclays Global Investors (BGI) designed Apex, a new porfolio management system, to meet the challenges it faces and why BGI chose to combine mainstream, boutique and open source Java technologies, including Oracle, WebLogic, Spring, Swing, JIDE, Flux, CPLEX, MVEL and XStream, to create an architecture with some interesting variations on the standard J2EE form.

Performance Tuning for Apache Tomcat

Posted by Mark Thomas  on  Aug 16, 2009 3

Mark Thomas, a member of the Apache Tomcat PMC, explains the tuning process for Tomcat, JVM and the applications running on them considering different usage patterns, hardware and network configurations.

OSGi for Application Developers

Posted by Neil Bartlett  on  Aug 05, 2009 2

Neil Bartlett presents OSGi to Java developers: an introduction to OSGi – the standard module system for Java -, infrastructure projects using OSGi, the partial failure of OOP, the benefits of using COP – Component Oriented Programming – and how to implement components, including a demo.

Google App Engine and the Google Data APIs

Posted by Mano Marks  on  Jun 21, 2009

Mano Marks introduces the Google App Engine (a toolset used internally to develop Google applications) and shows how to build scalable systems where the developer worries about the code, and Google worries about the servers. The presentation includes an overview of Google App Engine and a quick introduction to the Google Data APIs.

Keynote: The Future of Java Innovation

Posted by Rod Johnson  on  Jun 10, 2009 21

In the opening keynote at SpringOne Europe 2009, Rod Johnson wondered if Java innovation is going to be stifled by latest Oracle acquisition and expressed his belief that Java will continue to evolve outside of Sun as it has done for the last few years. As proof he mentioned: Grails, Roo, a tool for improved developer productivity, a free STS, tc Server and dm Server.

Introduction to SpringSource dm Server

Posted by Rod Johnson  on  May 21, 2009

In this presentation recorded at QCon SF 2008, Rod Johnson, the father of Spring, introduces the SpringSource dm Server by taking a high-level look at it, trying to clear up some misconceptions about what dm Server is, and showing how the configuration, logging and application installation work.

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