Apache Myfaces - Standard meets Innovation

Apache MyFacesStandard meets Innovation
Matthias Wessendorf | matzew@apache.org
http://matthiaswessendorf.wordpress.com
http://twitter.com/mwessendorf

Matthias Wessendorf
Oracle Corporation
Apache Software Foundation
ASF Member
Committer and PMC @Apache MyFaces  PMC Chair
Committer and PMC @Apache Shale (RIP)
Author
(German) Java- and Eclipse-Magazine
Books on Struts, J2ME & WebServices
Speaker
Oracle Open World
ApacheCon
JavaOne
JAX, WJAX
@mwessendorf (Twitter)

Agenda
Introduction
Apache MyFaces
JSF implementation
Apache MyFaces Trinidad
Apache MyFaces Extensions
Groovy Support
Validation Framework
Apache MyFaces Orchestra
MISC

JSF Ecosystem
Apache MyFaces
Jenia
GMaps4JSF
IceFaces
PrettyFaces
Tomahawk
PrimeFaces
Woodstock
Mojarra (Sun RI)
Facelets
Oracle ADF Faces
PureFaces
Jboss RichFaces
Tobago
Seam
Trinidad
<<YOUR LIB>>

JSF Ecosystem
3rd Party Libraries
Implementations
JSF Spec
Tools / IDEs
Frameworks
Templating

JSF Ecosystem
News, articles, ...
JSFCentral.com
@JSFCentral

Agenda
Introduction
Apache MyFaces CORE
Groovy Support
MISC

Planet „Apache MyFaces“
Commiters: 62 (soon more ... No kidding!)
First! OpenSource JSF Implementation
JSF 1.1, JSF 1.2 and JSF 2.0 (alpha release is out  )
Since 2005 an Apache project
2002 -> 2005 on sourceforge (LGPL)
Biggest JSF (user) community
Apache: Community over Code!
A good community builds good code
More than „just“ an implementation
Innovation happens at Apache (MyFaces)
Interesting  JSR RI* for JSF/Portlet stuff (301 and 329)

Planet „Apache MyFaces“
The many Faces of MyFaces:
Tomahawk
Sandbox as its LAB
Tobago
Trinidad
has Maven features
Orchestra
Portlet Bridge
Commons
Extensions
ExtVal and Scripting (Groovy)

Team Diversity
Interoperability
Apache Tomcat
JBoss Seam / JSFUnit
Apache Shale ( RIP)
Apache Tiles
Sun RI (patches and contributions)
Facelets
Portlets
Apache Commons
Apache Geronimo
…

Team Diversity
Standards
JSF 1.0  2.0 (multiple JSRs)
CDI (aka WebBeans)  JSR 299
Portlets  JSR 168
JSF Metadata  JSR 276
Portlet Bridge 1  JSR 301
Portlet Brdige 2  JSR 329
TBC !!

Team Diversity
Companies
Oracle, IBM, Sun, Goolge
ThoughtWorks, RedHat
Irian.at, CodeBeat, Ordina J-Technologies, ...
... and Freelancers

Agenda
Introduction
Apache MyFaces
JSF implementation
Groovy Support
MISC

Trinidad – Background I
Donated to Apache by Oracle in 2006
Something between 10g and 11g
Has already some „11g“ APIs...
Contains more than 100 JSF components
Ajax-enabled JSF components
Tree-Navigation
Helpers (e.g. Extra converters and validators)
Ajax is first class citizens
Mother of PPR (Partial Page Rendering) 
Ajax support since UIX days !
Ajax-API
Client (JavaScript)
Server (Java)

Trinidad – Background II
Trinidad is a framework
Several framework bits
Skinning
Ajax API
Maven2 Plugins
Used as base for:
Oracle ADF Faces Rich Client Framework
ADF mobile
Stable library
JSF 1.2 support
JSF 1.1 support
JSF 2.0 support (a branch right NOW!)

Trinidad Chart Component
Multiple types: pie, horizontalBar, area, ...
Requires a ChartModel impl
http://matthiaswessendorf.wordpress.com/2008/10/11/nice-charts-with-trinidad/

Trinidad Mobile
Mobile Web is old
Never really took off...
Modern devices (Android, iPhone, black-berry) bring back hype
Trinidad hides limitations or capabilities of different browsers
(some) supported Devices
Microsoft Windows Mobile 5 and 6, Microsoft Pocket Internet Explorer
Symbian S60 devices
Apple iPhone
RIM BlackBerry Browser 4.6
RIM BlackBerry Browser 4.7
Android Based Phones
WAP 2.0 phones (XHTML Basic or XHTML MP)
Nokia S40 Phone Browser
Opera Mini Browser

Trinidad Mobile
Navigation Panel Lists:

Agenda
Introduction
Apache MyFaces
JSF implementation
Groovy Support
MISC

Groovy – a dynamic language
dynamic language for the JVM
backed by JSR 241 (unfinished / inactive ...)
similar to Java
easy to learn for Java folks
Integrates seamless with Java
(RE)MIX IT
feature rich
has already closures (maybe? they arrive in JDK 7*)
used in the industry
Apache MyFaces  Hey, that‘s here ..
Oracle
JBoss Seam etc...

Apache MyFaces Scripting
(currently) extra module in extensions project
status: VERY alpha
Don‘t BYE it today --- playing never hurts!
mastermind: Werner Punz (Irian.at)
feature
Supports Groovy for JSF artifacts
nice sample application (blog) ...
Future
Make it stable ;-)
Add more (cool) stuff
Scala
(J)Ruby
...

Groovy MyFaces!
Support for (almost) all JSF artifacts:
Managed Beans
Renderers / Components
Listeners (Action / ValueChange)
PhaseListener
NavigationHandler
Application object
Factories ...

MyFaces gets Groovy!
GettingReal !
https://issues.apache.org/jira/browse/EXTSCRIPT-27 (only on Windoze ...)

MyFaces gets Groovy!
public class JavaNightRenderer extends MyRealRenderer {
public void encodeBegin(FacesContext fc, UIComponent comp) {
fc.responseWriter.write “““
<h2> Apache MyFaces in Action </h2>
<p>Welcome to the JavaNight, guys! </p>
...
Some component access: $comp.xyz
...
“““
super.encodeBegin(fc, comp);
}
...
}
just reload it (F5)

ExtVal - Introduction
Validation Framework (for JSF)
fits some needs...
Leverages JPA @nnotations! (JSR backed)
Seam is using Hibernate Validation
cross-component validation
Client-Side Validation (not easy with JSF default)
only for Trinidad
tbc...
Create your own @ValidateMyOnlyOnMonday
JSR 303 (Bean Validation)

ExtVal – some code...

ExtVal - Details
Introduction
ExtVal vs. JBoss Seam
Conditional Validation
Cross Component Validation
JPA 1.0 support
http://jsfcentral.com/articles/myfaces_extval_1.html

Agenda
Introduction
Apache MyFaces
JSF implementation
Groovy Support
MISC

JSF Extension Library
Conversation Scope (for multi request)
for managed beans (spring or @nnotations)
Persistence Context Handling
ConversationScope & PersistenceContext
 no more LazyInitializationExceptions
ViewController
callbacks (initView(), preProcess(), preRenderView())
Declarative Transactions
Requires Spring ...

<bean name="ballotTopic"
class="org.apache.myfaces.examples.ballot.backings.BallotTopic"
scope="conversation.access"/>
@Transactional
public String saveAction(){ topic.setOwner(getVoterDao().getByKey(getBallotState().getVoterId()));
topicDao.save(topic);
Conversation.getCurrentInstance().invalidate();
return "success";
}
public class VoterDao {
@PersistenceContext
private EntityManager entityManager;
public Voter getByKey(Long id) {
return entityManager.find(Voter.class, id);
} }

Agenda
Introduction
Apache MyFaces
JSF implementation
Groovy Support
MISC

Apache MyFaces - MISC
More innovation to come
Interested ?
Get started  http://myfaces.apache.org
Contributions ...
mailing list / discussions
patches / code fixes / new feature
documentation 
... are VERY welcome !!!

Links and Resources
Apache MyFaces
http://myfaces.apache.org
Slides (soon)
http://www.slideshare.net/mwessendorf

Thank you!matzew@apache.orgBLOG:matthiaswessendorf.wordpress.com

Apache Myfaces - Standard meets Innovation

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