Used to be quite common in java jpa spring, but I haven't seen it that much in the wild lately. Basically you just write a method name as an interface, and runt

Used to be quite common in java jpa spring, but I haven't seen it that much in the wild lately. Basically you just write a method name as an interface, and runtime it will implement it. https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#jpa.query-methods.query-creation https://docs.spring.io/spring-data/jpa/docs/current/referenc... To make fun of this behavior, I made a similar thing for javascript when proxies came into the language https://github.com/Matsemann/Declaraoids https://github.com/Matsemann/Declaraoids