Aw: Re: POJO to JSON

Xtext is a great tool. A good starting point for reading is

http://www.eclipse.org/Xtext/documentation/

 

The Xtext plugin for eclipse ships with the so called 'domain model' example.

It is a DSL (Domain Secific Language) for describing your entities and their relationships.

Next step is to write a generator based on Xpand - a transformation language.

 

There is an analogy to the world of xml:

- with the help Xtext you are writing a grammar like XSD

- your model is syntactically correct if it is conform to your grammar. A model is like XML.

  (your model is semantically correct, if it correctly decribes your business within your functional domain)

- Xpand is like XSLT. It is a language to transform your models to whatever you want. in your case JPA.

 

Your challange is to write a generator which transforms your model (of entities)

to JPA (or GWT or both or whatever) code.

 

I wrote a full blown extended version of the original domain model example with a code generator

for jpa (+ gwt request factory).

If your company needs professional help in the context of generative development with jpa / gwt please contact me directly:

cafebab3@gmail.com

 

Cheers

 

Daniel Dietrich

 

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