Tag: Components

Base Libraries Should be Stable

In this post I go over the principles that govern package (library) design and one specific issue I have come across several times. Robert C Martin has proposed six Package Principles. Personally I find the (linked) description on …

EntityStore and TermStore for Wikibase/Wikidata

I’m happy to announce the public release of two new PHP libraries that provide services around Wikibase, the software behind Wikidata. They are called QueryR EntityStore and QueryR TermStore. Both these libraries provide persistence and lookup services for …

Component design

This week I gave a presentation titled “Component design: Getting cohesion and coupling right” at Wikimedia Deutschland. Components are a level of organization, in between classes and layers. They are an important mechanism in avoiding monolithic designs and …

The Wikidata phase3 software components

Work on the long awaited query functionality for the Wikidata project has already happened during a period of several months. Since queries are a completely disjoint feature set from the existing functionality, we decided to put it into …

Wikibase DataModel: Entity v2

In a recent blog post I introduced the new Term classes introduced in Wikibase DataModel 0.7.3. It also outlined plans for making some big changes to the Entity class and it’s derivatives. We have now taken the most …