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Who is on the Team?
Ahmad Fahmy and Cesario Ramos take the changes to the new Scrum Guide as an opportunity to explore what it means to be "on a team." They draw on research to create an ACID test to differentiate who is on the team and who isn't. They discuss different mental models around the idea of a team with the hopes that you take this opportunity to discuss and elevate the roles within your organization.
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How Do We Think about Transactions in (Cloud) Messaging Systems? An Interview with Udi Dahan.
Do today's cloud-based messaging services have different transactional support than those that preceded it? If so, what are the implications? In this interview with distributed systems expert Udi Dahan, we explores the question.
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High Load Trading Transaction Processing with Reveno CQRS/Event Sourcing Framework
Reveno is a powerful new, easy to use, highly performant, JVM based lock-free transaction processing framework based on CQRS and event-sourcing patterns. In this article we will develop a simple trading system implementation using the Reveno framework.
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How to Effectively Map SQL Data to a NoSQL Store
Sytze Harkema explains how to save and retrieve relational SQL data into a NoSQL key-value store as implemented by FoundationDB, an open source, scalable, fault tolerant and ACID database.
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Nobody Needs Reliable Messaging
Marc de Graauw challenges the notion that transport-level reliability mechanisms like WS-ReliableMessaging are needed, showing how business-specific logic for in-order and exactly-once processing do the job much better with examples from Dutch Healthcare's SOA.
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A Discussion with Allard Buijze on CQRS with the Axon framework
The Axon framework is a Java implementation of the Command and Query Responsibility Segregation. InfoQ talked with its creator, Allard Buijze, to find out more.
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Eight Isolation Levels Every Web Developer Should Know
In this article, James Leigh takes a look at eight different isolation levels that can be utilized within a web application, and explores the pros and cons of each level of isolation, ranging from read uncommitted to serializable consistency - the interactions between transactions at different isolation levels is also looked at.
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Addressing Doubts about REST
Invariably, learning about REST means that you’ll end up wondering just how applicable the concept really isbeyond introductory, “Hello, World”-level stuff. In this article, Stefan Tilkov addresses 10 of the most common doubts people have about REST when they start exploring it, especially if they have a strong background in the architectural approach behind SOAP/WSDL-based Web services.
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Spring 2.0: What's New and Why it Matters
Spring co-founder Rod Johnson provides the definitive article on the motivations behind and uses of the new features in Spring 2.0. This first article covers the Spring core container, XML configuration extensions, AOP enhancements and Java 5-specific features.
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An Update on Spring 2.0 Final
Spring 2.0 was initially supposed to come out in June/July, why the delay? InfoQ interviewed the Spring team - based on massive community feedback, the team has chosen to delay the launch to Sept 26th in order work on asynchronous JMS capabilities, JPA, the new JSP form tag library, OSGi integration, documentation, and backwards compatibility.
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A History of Extended Transactions
ACID transactions don't work for long-lived use cases. This article documents historic approaches taken in the CORBA and J2EE communities toward extended transactions, how SOA is a more natural fit, and why WS-TX & WS-CAF may finally hold the answer.