What are some alternatives?
When comparing Fénix Framework and Entity Developer, you can also consider the following products
Hibernate - Hibernate an open source Java persistence framework project.
JDBI - See this.
Codesmith - CodeSmith is a template-based code generator tool. It features a syntax nearly identical to ASP.
Ebean ORM - ORM for Java / Kotlin
T4 Awesome - The easiest way to use T4 Templates inside Visual Studio.