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Schema for Web Services – Part I: Basic Datatypes

Most web service developers rely on a data binding conversion layer within a web service to work directly with data structures in their programming language of choice - but this causes a number of problems. In the first of a series of articles that look at these problems, Dennis Sosnoski starts at the most basic level, looking at simple data types and the issues that arise from mapping them.

Dennis Sosnoski
on Jan 15, 2009
Contract Versioning, Compatibility and Composability

Kjell-Sverre and Jean-Jacques revisit the principles of contract design focusing on the concept of compatible contract based on XML, XML Schema and WSDL extensibility to foster service reuse and complement Governance. The article includes a novel approach to manage message types in relation to an enterprise data model.

Kjell-Sverre Jerijærvi Jean-Jacques Dubray
on Dec 09, 2008
Structured Event Streaming with Smooks

Smooks is best known for its transformation capabilities, but in this article Tom Fennelly describes how you can also use it for structured event streaming.

Tom Fennelly
on Nov 26, 2008
Flex for XML and JSON

Platforms need interoperability. In this article Flex interoperability with JSON and XML is explored. The article including mapping of XML to chart and grid components using the E4X library. It also demonstrates using the as3core library to decode JSON messages.

Jack Herrington
on Oct 12, 2008
AtomServer – The Power of Publishing for Data Distribution – Part Two

In this article, Bryon Jacob and Chris Berry continue their description of AtomServer, their implementation of a full-fledged Atom Store based on Apache Abdera. The authors have created several extensions to the AtomPub specification, among them Auto-Tagging, Batching, and Aggregate Feeds.

Chris Berry Bryon Jacob
on Sep 26, 2008
Service-Oriented Development with Consumer-Driven Contracts

In this article, Ian Robinson discusses how "consumer-driven contracts", in the form of "stories for services" and unit tests exchanged between service development streams, can strengthen the service-oriented development lifecycle. In contrast to contracts defined from the POV of the provider, consumer-driven contracts result from combining the demands of all known service consumers.

Ian Robinson
on Jul 27, 2008
Rationalizing the Presentation Tier

Thin client paradigm characterized by web applications is a kludge that needs to be repudiated. Old compromises are no longer needed and it's time to move the presentation tier to where it belongs. In this article, Ganesh Prasad and Peter Svensson explains how and why.

Ganesh Prasad Peter Svensson
on Jul 04, 2008
AtomServer – The Power of Publishing for Data Distribution

In this article, Bryon Jacob and Chris Berry introduce AtomServer, their implementation of a full-fledged Atom Store based on Apache Abdera. The authors spent the last year implementing an Atom Store for Homeaway, their employer, and are mnow making the Atom Store framework available as open source.

Chris Berry Bryon Jacob
on Jul 02, 2008
Improving Performance of Healthcare Systems with Service Oriented Architecture

This article, based on a chapter from the book "Service Oriented Architecture Demystified", discusses the benefits of applying SOA to heterogenous environments in the healthcare domain. Focusing on a domain instead of technology perspective first provides an interesting view on the business motivation for SOA.

Steve Birkel Joe Natoli Blake Dournaee Girish Juneja
on Mar 07, 2008
Open Source WS Stacks for Java - Design Goals and Philosophy

InfoQ's Stefan Tilkov questioned lead developers of Apache Axis2, Apache CXF, Spring Web Services, JBossWS and and Sun’s Metro about their design goals, their approach towards Java and Web services standards, data binding, accessing XML, interoperability, REST support, and framework maturity. The results revealed many similarities and some noteworthy differences.

Stefan Tilkov
on Oct 04, 2007
Unit-Testing XML

There are many occasions where software creates XML output: XML documents are used for data interchange between different applications, web application create (X)HTML output or respond to AJAX requests with XML, and this has to be tested as much as anything else. In this article, Stefan Bodewig explains how to perform those tests with the XMLUnit framework he has co-authored.

Stefan Bodewig
on Jun 11, 2007
Using Java to Crack Office 2007

Office file manipulation used to be difficult, but since Office 2007, Word, Excel and Powerpoint files can be read and written without anything more complicated than the native JDK itself because Office 2007 documents are now nothing more than ZIP files of XML documents. Ted Neward demonstrates this in action.

Ted Neward
on Jun 04, 2007