Java DB Sample

https://console.ng.bluemix.net/catalog/starters/java-db-web-starter/

The Java DB Web Starter demonstrates how to use JPA with the Bluemix SQL Database service. The application displays a list of persisted items and lets the user add, modify, or delete them. The UI calls a RESTful CRUD JAX-RS API (/api/todolist) to retrieve, add and remove items.

Decomposition

API - JAX-RS Resource

See src/main/java/example/jpa/TODOListResource.java for the item CRUD API and obtaining the EntityManager.

JPA Configuration

See src/main/webapp/WEB-INF/web.xml & src/main/resources/META-INF/persistence.xml for JPA configuration.

UI

See src/main/webapp/WEB-INF/index.html, src/main/webapp/WEB-INF/index.js and src/main/webapp/WEB-INF/util.js for the front-end UI calling the back-end API.