InfoQ Homepage Architecture & Design Content on InfoQ
-
Covariance and Contravariance in .NET Generics
Currently .NET languages such as VB and C# do not support covariance and contravariance for generics. While this is not likely to chance in the near future, people at Microsoft are talking about it.
-
Interview: Neal Gafter Discusses Closures, Language Features and Optional Typing
In this interview from QCon London 2008, Neal Gafter discusses upcoming language features in Java 7, superpackages, what closures are, the differences between the three major closures proposals (CICE, FCM and BGGA), optional typing systems for dynamic languages, and the next major language.
-
Oracle Unveils ts SOA Product Strategy
After the Oracle acquisition of BEA it was not clear how Oracle was going to integrate often competing SOA products in its and BEA’s portfolio. In his presentation last month David Shaffer, VP Product Managemen for, Oracle Integration, described the Oracle-BEA product Strategy and Roadmap for SOA, BPM, Governance and Events.
-
Drizzle - a new direction for databases
Unveiled at the O'Reilly Open Source Convention (OSCON), Drizzle can be described as a "what if" project - creating a database specially for applications that include web based apps, cloud computing components, databases without business logic (aka stored procedures), and multi-core architecture.
-
Interview: Jerry Cuomo Discusses Virtualization, Cloud Computing and WebSphere Virtual Enterprise
In this interview, Jerry Cuomo talks about Virtualization and Cloud Computing and what IBM is doing with WebSphere Virtual Enterprise to help virtualize middleware and application stack. He also explains the progression of virtualization using virtual servers, collection of servers, and virtual clusters. Jerry mentions that next release of WebSphere Version 7 will have a virtual appliance option.
-
Interview: Gregor Hohpe on Conversation Patterns and Cloud Computing
In this interview, recorded at QCon London, Google architect Gregor Hohpe talks to Stefan Tilkov about his new work on conversation patterns, building upon his earlier work on enterprise integration patterns. Gregor also talks about the similarities and differences in several approaches to cloud computing.
-
John Heintz on Adding Behavior to Java Annotations
Custom annotations are a great way to add common reusable behavior to Java applications. John Heintz from New Aspects discussed at the recent No Fluff Just Stuff (NFJS) Java Symposium, the design techniques for adding behavior to Java Annotations.
-
Comparing Virtual Machine Interfaces
Andrew John Hughes, one of the OpenJDK Innovators' Challenge finalists, has posted a multi-part comparison of the interface between OpenJDK, GNU Classpath, and their respective virtual machine implementations.
-
Presentation: Mock Roles Not Object States
In this presentation filmed during QCon London 2007, Nat Pryce and Steve Freeman talk about TDD using Mock Objects. In their opinion, Mock Objects improves the software design and makes the code more easier to maintain and adapt to changing requirements.
-
Security Vulnerabilities in Safe Level, WEBrick, Dl, DNS lookup
A few security vulnerabilities were discovered in Ruby 1.8.5 to 1.8.7 and 1.9.x. The vulnerabilities are found with safe levels, WEBrick has a DoS vulnerability in a particular regular expression, shared library API dl doesn't check taintedness and resolv.rb has a problem with DNS spoofing.
-
The Challenges in Java Benchmarking
Brent Boyer posted an article on IBM's DeveloperWorks that discusses the challenges in Java benchmarking and introduces a Java benchmarking framework.
-
Using Open Source in your Business: Myths and Clarifications
A white paper “10 Myths About Running Open Source Software in Your Business” was released by ActiveState. It promotes rational approach to open source software and refutes some common misconceptions about its quality, its usage and its place in today’s industry. The authors believe that open source adoption is inevitable but they advocate for a more structured approach to its implementation.
-
Open source workflow engines compared: jBPM, OpenWFE and Enhydra Shark
A new report looks at how open source workflow engines jBPM, OpenWFE and Enhydra Shark compare in support of standard Workflow Patterns, including how they stack up against their closed source alternatives Staffware, WebSphere MQ and Oracle BPEL PM.
-
Prioritizing (the Backlog) For Profit
Having difficulty prioritizing the backlog? Luke Hohmann has described a method to make quantitative decisions about which backlog items should be considered first. In addition to the usual attributes such as implementation effort, Luke suggested adding attributes to measure stakeholders needs, strategic alignment and to ask whether the item is driving profit.
-
Robert Bell on Java and Silverlight Interop
Robert Bell, Microsoft Solution Architect, introduces interoperability scenarios for using Silverlight from Java and provides architectural guidance using sample code snippets.