jsf2 complete tour

JavaServer Faces 2.0The Complete Tour

Ed BurnsSun Microsystems, Inc.

Ed BurnsOracle America, Inc.


Java Developer Conference

Agenda Introduction: set the context

Basic Operation of JSF Request Processing Lifecycle

What is it? Why do I have to understand it?

JSF 2.0, from two viewpoints

The Four Pillars of JSF New Feature Traversal


Speaker Qualifications: Ed Burns Principal Staff Member, Oracle America, Inc. Since inception, co-leader of the team that

develops the JavaServer Faces (JSF) Specification Co-author of the McGraw-Hill book, JavaServer

Faces, The Complete Reference and upcoming JSF2: The Complete Reference

Author of the McGraw-Hill book: Secrets of Rock Star Programmers: Riding the IT Crest

Prior to JSF Ed worked on the Sun Java Plug-in, Mozilla Open JavaVM Interface, NCSA Mosaic


All of the Faces Spec and Runtime Team at Oracle

Ed Burns Roger Kitain

Ryan Lubke


Most of the Faces of the JSR-314 EG

Andy Schwartz

Dan Allen

Alexandr Smirnov

Ken Paulsen

Martin Marinschek

Pete Muir

Kito Mann

Joe Ottinger

Ted Goddard Neil GriffinJason Lee

David Geary Mike Freedman

Gavin King

Jeremy Grelle

Keith Donald

Ed Burns

Jim Driscoll

Roger Kitain

Ryan Lubke


Some of the Faces of the Faces Community

Andy Schwartz

Dan Allen

Jacob HookomAlexandr Smirnov

Ken Paulsen

Martin Marinschek

Matthias Weendorf

Pete Muir

Alexander Jesse

Imre Owald

Yara Senger

Lincoln Baxter III

Adam Winer

Craig McClanahan

Kito Mann

Rick Hightower

Joe Ottinger

Ted Goddard Neil GriffinJason Lee

Stan SilvertDavid Geary Mike Freedman

Gavin King

Hazem Saleh

aatay ivici

Dennis ByrneRoger Keays

Amy Fowler

Max Katz

Jeremy Grelle

Keith Donald

Ed Burns

Jim Driscoll

Roger Kitain

Ryan Lubke

SpockRafael NunesVinny Nunes


Basic Operation of JSF


JSF Request Processing Lifecycle


Wait a minute... Lots of complexity for just a simple

thing: HTTP?

Isn't it easier just to do REST?

Real Web Frameworks don't try to hide the elegance of the web


Data Conversion and Validation

Page Flow

Database integration (Persistence Layer)

All Web Applications Must Have...

Performance

Security

I18N, L10N, A11Y

Support CSS, Markup based layout

User Friendliness!

Developer End User


Complexity Must Live Somewhere

Choosing JSF ==

Choosing an Architecture

Designed by industry experts

Refined Over Five Years Time

Widely Deployed in Production


JSF 2.0 From Two Viewpoints Four Pillars of JSF

View Model Integration Navigation Lifecycle

New Feature Traversal


Four Pillars of JSF

Inversion of ControlInversion of Control


View JSF 2.0 Views are Facelets Pages

JSP is deprecated

Still works Most new features are not available to JSP

users Facelets == XHTML + Industry Proven Templating

Taglibs are XML namespaces


Demo: Facelets in NetBeans 6.8


Model Interaction Powerful EL Expressions

link components in View to Properties in Model

Java EE 6 EL: Supports Arbitrary Method Invocation

Two styles

backing bean + POJO

POJO


Navigation JSF2.0 Implicit

Navigation

No XML Highly Dynamic Useful with flash

object JSF 1.X Explicit

Navigation

Lots of XML Redeploy Required


Demo: Implicit Navigation


LifecycleJSF 1.0

Handles only View Declaration Request

No Support for Ajax

PhaseListeners: the only way to observe into the Lifecycle

JSF 2.0

Handles View Declaration Request + Resource Requests

Excellent, well integrated support for Ajax

System Events: fine grained lifecycle listening


Demo: Ajax

25

Ajax> Inspiration: RichFaces, IceFaces, DynamicFaces, ADF Faces

>Two entry points: Declarative: tag, uses AjaxBehavior Programmatic ajax: resource library

javax.faces, resource name jsf.js, JavaScript namespace jsf.ajax

>Declarative ajax: useful to ajaxify non ajax pages

>AjaxBehavior : great flexibility for most needs

>Programmatic ajax API usage pattern

jsf.ajax.request() JavaScript methodR

26

Ajax>PartialViewContext

Used to process AjaxRequests on server Contains useful discovery methods

>PartialResponseWriter

Write standard Ajax response format

>PartialViewContext and PartialResponseWriter are extensible

R


JSF 2.0 New Feature Traversal


Categories of New Features`

Foundational

Purpose built to support Large features

Large

Big Ticket Stuff Medium

Very useful for advanced users

Small

Bug fixes and enhancements

E


Fou nd at io nal N

e w F ea tu re s

Lar ge N

e w

Fea tu re s

High Level Categories of Features

JSF 2.0 Vision for Compnents This...

Make components easy to develop Becomes this...

Or maybe this...

if you want to get fancy

Pay as you go complexity

Make components easy to develop

JSF 2.0 Component Vision multi-select components on a

JSF page

press a componentize button

you get a wizard that lets you choose how to expose the content of this component to the page author

the component appears in a palette.

Demo: Simple Login Panel


Fou nd at io nal N

e w F ea tu re s

Lar ge N

e w

Fea tu re s


37

Resources> Avoid need for separate Filter or Servlet.> Resources are logically related to components, treat

them that way.> Load from Classpath, or filesystem> Full support for Library concept, I18N, Versioning

R

38

ResourceRenderer outputsURL to resource

R

39

Resources: Java API>@ResourceDependency or @ResourceDependencies

annotation on UIComponent, Renderer, Validator, Converter, ClientBehavior

>attributes for resource name, library name>attribute for target: head, body, form>Built in support for CSS, Image, JavaScript resources

R

40

Resources: Markup API

>, >, >Similar attributes for resource name, library name>Similar attribute for target: head, body, form

R


Fou nd at io nal N

e w F ea tu re s

Lar ge N

e w

Fea tu re s


42

View Parameters>Inspired by Page Parameters from JBoss Seam>Provides a way to map request parameters to special components within the view>>UIViewParameter extends UIInput>All attached objects valid for UIInput are valid>Breaks the tyranny of POST>Enables Bookmarkable pages

R


Fou nd at io nal N

e w F ea tu re s

Lar ge N

e w

Fea tu re s


44

System Events

E

>Influenced by JSFTemplating>Publish/Subscribe event bus for things that happen during the JSF Lifecycle, not application specific>Inspired by Solaris Dtrace, Linux strace, truss, etc.>Listeners can be registered at three scopes

component UIComponent.subscribeToEvent() view UIViewRoot.subscribeToEvent() application Application.subscribeToEvent()

>Publish is always with Application.publishEvent()

45

System Events: Standard Event Types

E


Fou nd at io nal N

e w F ea tu re s

Lar ge N

e w

Fea tu re s




Ed BurnsOracle America, Inc.

Java FX Adobe AIRAgendaSlide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Slide 21Slide 22Slide 23Slide 24Slide 25Slide 26Slide 27Slide 28Slide 29Slide 30Slide 31Slide 32Slide 33Slide 34Slide 35Slide 36Slide 37Slide 38Slide 39Slide 40Slide 41Slide 42Slide 43Slide 44Slide 45Slide 46Slide 47Slide 48Slide 49Slide 50

jsf2 complete tour

Documents