Code Freely, Live Fully
Code Freely, Live Fully
Introduction The Servant pattern is a way of organizing code where one special object helps out a bunch of other objects. This helper object provides some functions to these objects, so they don’t have to do the same things over…
Introduction The Singleton may be one of the most familiar design patterns. However sometimes it is necessary not have just one object of a certain type in your program, but several. That is when the Multiton comes in. The Multiton…
Introduction In delegation, you delegate a certain request to an object to a second object, which we call the delegate. This is almost like a subclass sending a request to its parent class. In Rust we can achieve this by…
Introduction Sometimes, it’s handy to separate when a method is called from when it actually runs. That’s where the Active Object design pattern comes in. It lets us build more flexible and concurrent systems. One key feature is that each…
Introduction Most applications require business rules, such as data validation. It’s crucial to implement these rules in a way that’s flexible, clear, and easy to maintain. The Specification pattern offers a solution, allowing the creation of reusable business rules that…
Introduction The extension object pattern is like adding extra features to something without changing what it is. It’s a bit like putting a gift inside another gift. In this case, Rust doesn’t directly support this pattern like some other languages,…
Introduction The composite pattern allows you treat a group of objects like a single object. The objects are composed into some form of a tree-structure to make this possible. This patterns solves two problems: We do this by doing the…
Introduction The Bridge pattern is a design pattern that is meant to “decouple an abstraction from its implementation so the two can vary independently”. To that end this pattern can use encapsulation, aggregation and also inheritance in order to separate…