In this interview conducted at the SpringOne 2GX conference, Rod Johnson talks about the new advancements SpringSource is bringing to the enterprise Java space, including new cloud options. Johnson discusses open-source Java in general, including the flap over the direction of OpenJDK and Apache Harmony. And he delves into the new Code2Cloud effort from SpringSource and Tasktop, and much more.
This article describes "the hardest topic in OSGi, how to deal with service dynamics," based on personal experience. Two factors, concurrency and direct service references, make the problem "fiendishly hard." An import and an export policy should form a comprehensive doctrine for dealing with service dynamics and the article explores two export policies with their corresponding doctrines.
This interview, conducted at QCon 2009, covers a wide range of topics beginning with a definition of OSGi and ending with an audience question about integrating OSGi into legacy application servers (like Websphere). In between Neil answers questions about the origins and evolution of OSGi, how OSGi compares to .Net modularization, and constraints on the use of certain Java libraries.
Late last month Google released Guice 3.0, a Java framework that implements the dependency injection (DI) design pattern. The motivation behind Guice was to make it easier for programmers to write DI code by reducing the need to write boilerplate factories. This article examines the new 3.0 features, loks at how Guice 3.0 supports Spring DI, and introduces Guice 4.1 (a.k.a. MiniGuice).
Dependency injection has been around for a while and there are quite a few frameworks which provide such capabilities for Java applications. Recently Google and SpringSource announced a partnership related to providing dependency injection for Java.
