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March 3, 2026

Domain-Driven Design (DDD) helps manage complex business logic in Spring Boot applications by enforcing a clear separation between the domain model (business rules) and the infrastructure layer (data persistence). But what does a non-anemic domain model look like?

February 25, 2026

For a seemingly straightforward JPA annotation, @OneToOne relationships can be mapped in a surprising number of ways. The problem is not choosing a mapping — it’s understanding the trade-offs between them. I want to explore some[1] variants of these mappings using a...

April 7, 2015

Transclusion is the process of extracting a collection of DOM element from one part of the DOM and copying them to another part of the DOM, while maintaining their connection to the original AngularJS scope from where they were taken. ~ Angular...

March 28, 2015

With Angular directives we can build custom web components that ‘extend’ HTML to the needs of our application, or add completely new functionality using a familiar HTML-like syntax. These ‘component directives’ take the script and HTML that constitute the component, and isolate...

March 17, 2015

In my previous post I looked at adapting Spring Security to work with Permissions to avoid hard-coding Roles into the security configuration. In this post I want to move beyond generic roles and permissions to look at how we can grant or...

March 11, 2015

If the documentation and standard schemas are anything to go by, Spring Security 3 doesn’t appear to encourage the common configuration of User -> Role -> Permission, and instead leans towards hard-coding roles into the security configuration. Leaving us writing this:

February 10, 2015

Tracking the identity of ENTITIES is essential, but attaching identity to other objects can hurt system performance, add analytical work, and muddle the model by making all objects look the same. ~ Eric Evans 2003

February 5, 2015

In a recent project I drew upon a number of concepts from Domain Driven Design. Among them Value Objects, which Eric Evans says:

February 2, 2015

In these post-JSP days it can sometimes be convenient to develop your clent and server code completely separate, even though they may be co-located in production. This is particularly the case when client and server code is being worked on by different...

February 1, 2015

Jekyll is the ‘blog aware’ static site generator powering GitHub Pages. It takes Liquid templates, static assets (like CSS and JavaScript), and markdown documents, and outputs a site. While Jekyll excells at creating blog-centric static sites, its not so clear from the...