Over the last one year I have worked on three projects involving REST based services. I found REST pretty cool as a concept - also the fact that unlike SOAP I did not have to learn any new terminologies. instead I needed to model my existing understanding of HTTP to build services.
In the previous post we saw how JAXB generated JAXBElement instances from simple types. Simple types however are just that - simple (!!!)
We often need our elements to allows attributes, include child elements etc. These cannot be achieved using simple types. We need to create complex types for the same.
In the past few weeks I have been working with web-services. So exposure to xml and xsd was inevitable. I had used xsd a while back and so I needed a revision of some of those topics. I decided to do a quick summary of some of the options available in xsd and how JAXB works with them
In the post on Spring web services, I had used a contract first approach for development. This being the only style supported by Spring. JAX-WS and also CXF on the other hand support both code first and contact first approaches.
I decided to use the same wsdl file from my Spring post: