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.
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.
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.
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.
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.
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.
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.
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.
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.
Dave Carroll presents Force.com as a platform for creating enterprise applications in the Cloud using Web service APIs, server side logic, service oriented application support and application lifecycle management service: delivering your application offline or to a mobile device. Dave covers issues, like scalability, huge data sets, security and developer success.
In this presentation from QCon London, William Soo and Meeraj Kunnumpurath discuss the Voca transaction processing system architecture, the previous Mainframe-based architecture, architectural challenges and requirements, the new Spring and J2EE-based architecture, upcoming challenges for Voca, and technologies to watch for in the future.
Spring 2.0 takes POJO-based development to a new level of sophistication. The themes of Spring 2.0 are simplicity and power: it makes existing tasks even easier, while extending the power of Spring to new areas. In this session, Rod Johnson will explain a number of the important enhancements and new features in Spring 2.0, as well as roadmap and plans for 2007.