Architecture category archives

Vespa: A better MVC

Vespa is a refinement of the old MVC (Model View Controller) architectural pattern that better reflects how Web applications actually work. MVC has been around for a long time, but many implementations have some annoying inconsistencies. I have refined the basic MVC pattern in light of typical usage patterns I’ve encountered; the result makes it [...]

23 June 2008 | By Bennett | Topics: Architecture, Web | Comments (6)

Spring MVC: How it works

If you are interested in the Spring Framework’s MVC packages, this could be helpful. It’s a unified description of the life cycle of a web application or portlet request as handled by Spring Web MVC and Spring Portlet MVC. I created this for two reasons: I wanted a quick reference to the way Spring finds [...]

23 November 2006 | By Bennett | Topics: Architecture, Java, Web publishing | Comments (10)

Data access layer should be separate

In a multi-layered architecture, the data access layer should hide database foibles. For example, Oracle stores empty strings as null – this should be hidden in the data access layer by specifying function return values appropriately. For example, ensure that the layer never returns a null string: null strings returned from the database should be [...]

27 May 2003 | By Bennett | Topics: Architecture, Coding, Recommendations | Comments
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