Bruce Wallace's Recent Articles

Links to Recent Articles and Papers authored by Bruce Wallace (For my unrefereed blog see Existential Programming)

AJAX from Scratch: Implementing "Real" Classes in JavaScript,
And why your JavaScript classes probably aren't
Feb 2007, Gamelan.com / Developer.com
JavaScript developers can use the presented compact implementation to take advantage of most of the features of the Java classes. This will enable the use of robust design patterns needed for AJAX and Rich Internet Applications (RIA).

Gravey Framework Home Page
This page contains links to code and examples related to the AJAX from Scratch framework: Gravey.

Mutual Exclusion in JavaScript,
March 2006, OReilly OnJava.com
Weak JavaScript environments offer the AJAX developer little protection from concurrency dangers, such as one thread modifying the DOM while another reads it. Bruce Wallace offers a mutual exclusion implementation for JavaScript.

AJAX from Scratch: Implementing Mutual Exclusion in JavaScript,
Learn how to keep your XMLHttpRequests from colliding with your rich Internet applications
March 2006, Gamelan.com / Developer.com
With the increasingly popular AJAX paradigm, a browser page can make requests for server data “in the background” while the user interface continues to be active “in the foreground” causing problems by accessing common data simultaneously. The classic solutions to this concurrent programming problem are not supplied by JavaScript. This article describes an implementation of a mutual exclusion mechanism that works around the limitations of JavaScript.

Design Markers Home Page
This page contains links to articles and code examples related to Design Markers and Explicit Programming.

Design Markers,
Explicit Programming for the Rest of Us
March 2003, OReilly OnJava.com
Explicit Programming seeks to better link designs with their implementations, but until now it has been tied to experimental research tools. Bruce Wallace introduces the Design Markers technique which provides many of the benefits of Explicit Programming but only relies on standard Java and JavaDoc.

Design Markers,
Maximize your Design ROI with Marker Interfaces and JavaDoc
March 2003, Gamelan.com / Developer.com
There are many choices made at design time which cannot be directly expressed in today's implementation languages. These choices must be implemented via programming & naming conventions. As will be shown, two consequences of this limitation conspire to erode your wise investment in design. The author has coined the term Design Markers to label the technique shown that leverages un-extended JavaDoc with Marker Interfaces to tie the “what” and “how” of the code to the “why”.

A Time for Reflection (local copy), (JavaPro Site)
Eliminate burdensome accept() methods from your Visitor pattern using Java 1.2's reflection capabilities
March 2001, JavaPro Magazine
In the November 2000 issue of Java Pro, James Cooper surveyed the well-known Visitor pattern. He explained that every element to be visited needs to cooperate by providing an accept() method. This constraint can sometimes be very burdensome. However, Bruce Wallace presents a technique in Java 2 that eliminates accept() methods altogether, with only two lines of code, using new reflection capabilities.