Gwt development with errai and forge
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This document discusses using JBoss Forge and Errai to develop GWT applications with a common development model on the client and server. It explains that Errai allows using a single Java EE 6 programming model with CDI capabilities and RESTful services. Forge can be used to scaffold new projects using standard technologies. Errai modules provide automatic data binding, templating, and a bidirectional message bus. Errai also supports developing RESTful endpoints and HTML5 UIs with data binding. Forge and Errai together help develop GWT applications with a common paradigm between client and server code.
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Gwt development with errai and forge
- 3. GWT development with Errai and Forge How to use the same development model on client/server with Errai/Forge
- 4. Why GWT ? â—Ź With the arise of AJAX and Web 2.0 GWT is the only tool that allows a single programming language on client and server â—Ź The problem is that the development environments (API and platform) are really different
- 5. Here comes Errai With Errai you can use a single model to develop all your applications: Java EE 6 with its CDI capabilities and its RESTful services
- 6. Optional Modules â—Ź Automatic Data Binding between POJOs and UI â—Ź A template system that is far better than UIBinder â—Ź JPA for the WebSQL DB â—Ź Also.....an optional simple and powerful bidirectional Message Bus between the client and the server
- 7. And what about Forge ? When you start a new project you can: â—Ź start from scratch, googling for configuration and the initial code skeleton â—Ź use a Maven Archetype (not really interactive) â—Ź use JBoss Forge to create the scaffold that you really need in your project
- 8. Forge: developer's BASH â—Ź It creates only applications that use standard technologies (Java language, Java EE programming model) â—Ź No Forge APIs or configuration files on your code â—Ź Once your project is configured, you can forget about Forge, or may use it as your dev shell, your taste
- 9. Forge helps us: scaffolding
- 10. CDI with Errai unveiled â—Ź Create a GWT's EntryPoint with a simple bean and the @EntryPoint annotation â—Ź The @PostConstruct method will instruct how to bootstrap your application â—Ź You can do communication over the Errai Bus using only CDI event â—‹ client code â—‹ server code
- 11. CDI with Errai unveiled
- 12. Errai JAX-RS â—Ź Forge helps us creating the jax-rs setup â—Ź You can call a RESTful end-point only using jax-rs API within the CDI container â—Ź You can use a Jackson-compatible marshalling/unmarshalling JSON
- 13. Errai JAX-RS
- 14. Errai UI â—Ź Put your HTML5 template into your Java packages â—Ź Annotate your Composite with @Templated and you are done! â—Ź You can also inject Widgets inside the template and of course attach event to those widgets
- 15. Errai Data Binding â—Ź A POJO annotated with @Bindable can be injected into a Composite as a DataBinder â—Ź When the Composite is annotated with @Templated then the binding betweeen fields and widgets is implicit â—Ź We can also register a custom Converter, global or local to a property
- 16. Errai UI and DataBinding
- 17. Errai's Portable Objects â—Ź We mark objects that need to travel between client and server with the @Portable annotation â—Ź Many strategies for construction and injection â—Ź Same API on client and on server
- 18. Conclusions â—Ź Forge helps us tailoring new projects for our needs and working in a productive way on existing ones â—Ź Errai lets us write less and better code with a common paradigm between client and server â—Ź Errai has also many addional modules that complete our client coding experience (HTML5 UI, Data Bindind, RESTful client)
- 19. References â—Ź The History and Future of GWT: http://go o.gl/mwrOJ â—Ź Innovation Award 2012, JBoss Forge: http://jax-awards. com/proposal_technology.php?id=599&show=more â—Ź Errai's project leader in the GWT Steering Committee: http://googlewebtoolkit.blogspot.it/2012/09/gwt-survey. html
- 20. Q&A
- 21. <Thank You!>