Proof of Concept on Exposing EJB and WS Repositories using Service Aggregation, Utilizing WSO2's Open Source ESB

This case study by Ruwan Linton and Asankha Perera describes, a proof of concept for a government organization to expose two repositories (one that is accessible as an EJB and the other as a Web Service), as a single composite service to allow merging of the results in order to be sent to the caller removing any possible duplicates.