Followup: I DID manage to load my own lifecycle using a lifecycleFactory. But
for the record, I just can't figure out
where the DEFAULT lifecycle loads. In the myfaces lifecycleFactoryImpl's
no-arg constructor it adds the "DEFAULT"
lifecycle but somehow that seems to load BEFORE my factory/lifecycle-factory
faces configuration setting. (It's not in
the standard-faces-config.xml file either or any other MyFaces config files I
can find). I couldn't add both mine and
the default because somehow, BEFORE my lifecycle-factory setting loads, JSF
loads a default factory with a default
lifecycle. I just change which is being used.
So, here is how I did it in four simple steps.
1. Create a class that extends the myfaces lifecycleFactoryImpl and have your
constructor add the lifecycle under your
own key kind of like so:
public final static String CUSTOM_LIFECYCLE = "DAVID";
public lifecycleFactory() {
addLifecycle(lifecycleFactory.CUSTOM_LIFECYCLE, new
LifecycleImpl());
};
2. Create my own lifecycle class. For the above test example, I simply
installed a second copy of class
org.apache.myfaces.lifecycle.lifecycleImpl because my own implementation isn't
ready yet.
3. Set the faces config (faces-config.xml) to load your own lifecycleFactory
implementation:
<factory>
<lifecycle-factory>com.friedsoftware.test.lifecycleFactory</lifecycle-factory>
</factory>
4. Set the javax.faces.LIFECYCLE_ID to the string you used to add your
lifecycle to the factory. The above constant was
"DAVID" so I set this in web.xml:
<context-param>
<param-name>javax.faces.LIFECYCLE_ID</param-name>
<param-value>DAVID</param-value>
</context-param>
That's it. Now I can continue on with my experiment to make the view creation
keep the viewId of "/about.jsf" but try
templating off "/hostname/about.jsf" to reduce file IO when virtual hosting
with JSF. More to follow (and possibly a
Wiki post!).
Regards,
David
-----Original Message-----
From: David G. Friedman [mailto:[EMAIL PROTECTED]
Sent: Wednesday, December 14, 2005 5:02 PM
To: MyFaces Discussion
Subject: RE: lifecycle questions
FYI, I'm going to try to go the other way:
Create my own lifecycleFactory implementation, specify it in a faces-config.xml
file, then have that one's constructor
add a lifecycle called "DAVID", which will be specified in the web.xml as
mentioned below. I'll keep everyone posted, I
just need a mental break right now.
Regards,
David
-----Original Message-----
From: David G. Friedman [mailto:[EMAIL PROTECTED]
Sent: Wednesday, December 14, 2005 4:12 PM
To: MyFaces Discussion
Subject: RE: lifecycle questions
> I doubt you'll find any examples. Changing the
> lifecycle is really a pretty unusual thing to do.
I'm a lot closer but my problem right now is a listener order one: the Myfaces
listener loads from the Jar BEFORE my
listener can load (to add my new lifecycle).
Essentially, the spec says I can change the default lifecycle (a default
implementation stores under the
lifecycleFactory key "DEFAULT") using the web.xml context param:
<context-param>
<param-name>javax.faces.LIFECYCLE_ID</param-name>
<param-value>DEFAULT</param-value>
</context-param>
So, I want to change "DEFAULT" to "DAVID" so I can use my own lifecycle. But I
do that in my listener, which won't load
until AFTER the MyFaces jar's one loads so "DAVID" doesn't get in there and
MyFaces initialization blows up like so:
INFO: Reading config /WEB-INF/faces-config.xml
Dec 14, 2005 3:29:24 PM org.apache.myfaces.webapp.StartupServletContextListener
initFaces
SEVERE: Error initializing ServletContext
java.lang.IllegalArgumentException: Unknown lifecycle 'DAVID'.
at
org.apache.myfaces.lifecycle.LifecycleFactoryImpl.getLifecycle(LifecycleFactoryImpl.java:60)
I would prefer this over also having to change the lifecycleFactory in
faces-config.xml to use a key other than
javax.faces.LIFECYCLE_ID so things can still follow the JSF v1.1 spec. Now,
JSF spec v1.2 would allow me to specify the
javax.faces.LIFECYCLE_ID in an init param for the servlet (i.e. AFTER my
listener loaded) but MyFaces isn't that far
along yet so it is not an option.
And yes, I tried pushing my lifecycle into the factory to replace "DEFAULT" but
that exceptions out/fails:
> INFO: java.lang.IllegalArgumentException: Lifecycle with id 'DEFAULT' already
> exists.
Does anyone have any ideas on how to change the listener load order?
Thanks again for any suggestions,
David
