InfoQ Homepage Patterns Content on InfoQ
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Book Excerpt and Interview: Dependency Injection
Dependency Injection by Dhanji R. Prasanna is a book that tries to explore the DI idiom in detail, and present techniques in Spring and Guice. Dhanji is a Google software engineer who works on Google Wave and also contributes to Guice, MVEL, and other open source projects.
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Patterns from SOA Design Patterns by Thomas Erl, Part 1
In this article we present 3 Inventory Governance Patterns from chapter 10 of the book SOA Design Patterns by Thomas Erl: Canonical Expression, Metadata Centralization, and Canonical Versioning. They are part of an 85 patterns catalog that serves enterprise architects and developers to find and build strong SOA solutions based on tested and proven SOA practices.
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RESTful HTTP in practice
Gregor Roth overviews the basics of RESTful HTTP and discusses typical issues that developers face when they design RESTful HTTP applications, showing how to apply the REST architecture style in practice. Gregor describes commonly used approaches to name URIs, discusses how to interact with resources through the Uniform interface, when to use PUT or POST and how to support non-CRUD operations.
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Supporting Advanced User Interaction Patterns in jBPM
Boris Lublinsky discusses task management in the jBPM and then demonstrates how to implement four advanced user interaction patterns(4-eyes principle, nomination, escalation, and chained execution) using JBoss and the jBPM. He also notes the advantages and limitations of these patterns.
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Introduction to Data Services
This article by Vijay Narayanan, provides an introduction to several aspects of data services that will be of interest to both SOA practitioners and data architects. A general case for data services introduces the article before the author explores specific issues, including: definition of need, rationale and benefits, scope, development, and consumption patterns.
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Grid Computing on the Azure Cloud Computing Platform, Part 2: Developing a Grid Application
David Pallmann shows how to perform grid computations on the Azure cloud computing platform. In Part 1 he presented a design pattern, while in Part 2&3 he shows how to develop&run a grid application.
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Grid Computing on the Azure Cloud Computing Platform, Part 1
In this 3-parts series of articles, David Pallmann explains how to perform grid computations on the Azure cloud computing platform. In Part 1 he presents a design pattern for using Azure for grid computing, while in Part 2 and 3 he is going to give a concrete code example.
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A Fusion of Proven Ideas: A Look Behind S#arp Architecture
In this article Billy McCafferty presents S#arp Architecture, an ASP.NET MVC architectural framework meant to leverage current best practices in architecting ASP.NET web applications by providing a project code template which uses Domain-Driven Design techniques and has built-in support for NHibernate, Castle Windsor and SQLite.
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Interview and Book Excerpt: Thomas Erl's SOA Design Patterns
Today, InfoQ publishes an excerpt from Thomas Erl’s newest book, SOA Design Patterns, and used the opportunity to interview the author. Topics covered include the role of a patterns catalog, differences between service-orientation, SOA, and Web services, and the current state of the SOA world.
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Getting Started With Spring Integration
In this article, Joshua Long introduces the readers to Spring Integration, an extension of the Spring framework supporting the Enterprise Integration Patterns. After a short introduction into Enterprise Application Integration (EAI), the article presents an example of the integration between an email application and a blogger one.
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Describing RESTful Applications
If servers control their own namespace without a fixed resource hierarchy, how do clients, and more importantly client developers, get to learn or discover URIs of resources? In a new article, Subbu Allamaraju discusses how to describe a RESTful API, focusing on using hypermedia instead of an out-of-band description format such as WADL or WSDL 2.0.
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The Limits of Code Optimization: a new Singleton Pattern Implementation
It is a well known fact in the programming world that the java (double-check) singleton pattern is not thread safe and can’t be fixed. In this article, Dr. Alexey Yakubovich provides an implementation of the Singleton pattern that he claims is thread-safe.