5. Generic DAO & Business Services HadesDao TESTED Generic Tested Extendable « extends » GenericDao GenericService Specific Testable Customized « extends » « extends » myDao myService
6. Generic DAO & Business Services Provides… CRUD methods (Create, Retrieve, Update, Delete) Allows… Save time (↘ copy-paste-adjust) on technical layers Improve efficiency on the development of business layers
7. Basic Example How to… obtain a complete DAO layer for my POJO? @Named("plopDao") publicclass PlopJpaDao extends GenericJpaDao<Plop> implements PlopDao { // Nothing } What else ?
8. DAO & Business Services stack Out of the box configuration Identity manager Multi-modules JPA entities scanning Generic DAO & ServicesGeneric tests Embeded database JSR 303 Bean validation Validator 1.2 Dependency injection Generic DAO Hades 2 3 3.5 Build system 3 JPA2 Persistenceengine
9. Generic REST Web Services Provides… Generic methods to access business services XML and JSON objects serialization Allows… Easily build applications REST-based architecture GenericController « extends » myController
10. Basic Example How to… retrieve a persisted object in database ? @GET @Path("/{id}") @Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON}) public Response getResource(@PathParam("id") ID id) { T entity = this.service.findById(id); if(entity == null) { return Response.status(Status.NOT_FOUND).build(); } return Response.ok(entity).build(); }
11. Webservices stack JSON Serialization OAuth2 based security Jackson 1.5 7.1 Run/Debug/Tests web application Generic webservices Generic tests JAX-RS REST Webservices Project templates (archetypes) Jersey 1.2
12. Generic Tests Provides Generic methods to test your DAO, Business services and Webservices Better protection against side effects caused by code changes Allows Focus on testing your project functionnalities
13. Basic Example How to… entirely test my DAO layer ? publicclass PlopDaoTest extends AbstractDaoTest<Plop, PlopDao> { @Inject @Named("plopDao") publicvoid setResourceDao(PlopDao resourceDao) { super.setResourceDao(resourceDao); } }
14. Use case 1 : RESThub + MVC Framework Tapestry5 website Webservices Server side DAO and Services
15. Use case 2 : RESThub full stack JavaScript stackbasedWebsite Client side Webservices Server side DAOandServices
16. Javascript Stack for RIA WebApps Provides… Script loader Route manager Templating language Allows… Use the latest web technologies consistently Create lightweight RIA WebApps based on jQuery Reduce traffic and server load
17. Wellknownwebapp software design Web browser Reloading page for each action Dynamic pages Application server SOAP proxytoJSON HTTP server Images SOAPWeb Services MVC framework based Web GUI session CSS Business Services Webservice SOAP Javascript DAO
18. RESThub based webapp software design Web browser Changing the state of one widget on each action Script loader HTML 5 based session MVC Framework HTTP credentials JSON/XML Data Static pages Application server HTTP server OtherRESTWebservices Images REST Web Services CSS Business Services Javascript DAO HTML
20. Consequences on the architecture Server is stateless Can change just a small part of the page Each part is independent (jQuery widget) URL are semantic (example.com/product/list) Client is statefull Recent browser provides « session storage » Each widget should knows his status Manage the reloading of the page (F5)
21. RESThub on hostingside Clear separation between static and dynamic Static: interface HTML5, JS, CSS Dynamic: stateless secure webservices Out of the box caching compliancy Even when pages are user-customized More operations are computed on client side Better scalability thanks to stateless servers
22. Security based on OAuth2 OAuth 2.0 basedauthentication Work in progress IETF standard Tokenbased Used on Facebook and Twitter Maybenext version of OpenIDwill use ittoo Different profiles User Agent profile Webserver profile Single Sign On
28. JavaScript HTML Route 1 Controller A View A Route 2 Controller B View B Route 3 Controller C View C URL Sammy Client side Route 4 Controller D View D Controller E View E Route 5 Resthub controller Events Web services Business services Server side DAO DB
