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Extreme Transaction Processing Patterns: Write-behind Caching

Lan Vuong shows how to optimize the performance of an application by leveraging the write-behind caching pattern which sends batch updates to the back-end database asynchronously within a user configurable interval of time, instead of doing sychronous write-through updates typical in web apps.

Lan Vuong
on Dec 07, 2009
MicroORM - A Dynamically Typed ORM for VB and C# in about 160 Lines

Using the new DLR features in VB 10 and C# 4 you can build a configuration-free ORM that works well with legacy stored procedures. Though accessed using normal object-dot-property syntax, all the data objects are built at runtime based solely on the information returned by the database. And this is done with no interfaces to define, classes to implement, or data mapping definitions to write.

Jonathan Allen
on Dec 05, 2009
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.

Vijay Narayanan
on May 19, 2009
Fetching strategy implementation in a J2EE application using AOP

This article presents a fetching strategy that using AOP, optimizes the data retrieval process from a back end system on a use case basis in a modular way without bloating the lower level service or repository layers.

Manjunath R Naganna
on Mar 30, 2009
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.

Billy McCafferty
on Mar 16, 2009
Blaze Data Services or LiveCycle Data Services?

This article, by Ryan Knight, compares two similar products: Adobe’s LiveCycle Data Services (LCDS) and Open Source Blaze Data Services. The comparison is necessary to know the differences between the two products in order to choose the right one for a certain situation.

Ryan Knight
on Feb 16, 2009
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
Performance Anti-Patterns in Database-Driven Applications

In this article, Alois Reitbauer, a Performance Architect for dynaTrace Software, specifies several architectural anti-patterns which can downgrade an application’s performance. Knowing those anti-patterns and proactively designing the application to avoid them will keep away certain snags that can impact application’s performance.

Alois Reitbauer
on Jan 05, 2009
Ruby's Roots: Smalltalk Comeback and Randal Schwartz on Smalltalk

Smalltalk, a language that has had a big influence on Ruby, is making a comeback. We take a look at the current situation and talk to Randal L. Schwartz about Smalltalk.

Werner Schuster
on Oct 27, 2008
Using Ruby Fibers for Async I/O: NeverBlock and Revactor

Rails 2.2 is schedule to be thread safe - but will blocking I/O libraries make it necessary to run multiple Ruby instances? We take a look at how non-blocking I/O and Ruby 1.9's Fibers help solve the problem. We talked to Mohammad A. Ali of the NeverBlock project and Tony Arcieri of the Revactor project.

Werner Schuster
on Aug 28, 2008
Domain-Driven Design in an Evolving Architecture

Mat Wall and Nik Silver explain how their has been using Domain-Driven Design in an evolving and Agile environment, at high traffic news site guardian.co.uk.

Nik Silver Mat Wall
on Jul 22, 2008
Java Object Persistence: State of the Union

In this virtual panel, the editors of InfoQ.com (Floyd Marinescu) and ODBMS.org (Roberto V. Zicari) asked a group of leading persistence solution architects their views on the current state of the union in persistence in the Java community.

Carl Rosenberger Mike Keith Ted Neward Craig Russell
on Mar 06, 2008