Hello Simon,
Thanks I think you got me right. I want to let the viewhandler get all the
views from the databse. I would ceratainly be working with facelets. The
idea behind it is developing something liake a content management system. I
would now have a good look at JspViewHandlerImpl, FacesServlet and
LifecycleImpl. nBased on that I would try to see if I could implement a
custom view handler. I would let you know or come back to you in case of
difficulties. :) Thanks
Eugine
From: Simon Kitching <[EMAIL PROTECTED]>
Reply-To: "MyFaces Discussion" <[EMAIL PROTECTED]>
To: MyFaces Discussion <[EMAIL PROTECTED]>
Subject: Re: modifying faces servlet to let view be loaded from a data base
by default
Date: Thu, 12 Apr 2007 08:54:08 +1200
Hi Eugene,
Yes, ViewHandler is one of the main classes you need to look at
(JspViewHandlerImpl is the implemenation for JSP pages). Also look at
FacesServlet and LifecycleImpl. The code in these three classes is pretty
easy to understand.
You might want to read:
http://wiki.apache.org/myfaces/StudyGuide
I don't know any existing term for this so I'm going to use the phrase
"view definition" for something that defines what JSF components are in a
view.; "jsp files" and "facelets xtml files" are two examples.
If you wanted to get *all* your "view definitions" from a database then I
think that would be reasonably simple; just implement a new ViewHandler and
then register it in the faces-config file.
However if you want *some* of your "view definitions" to be from a
database, and some from the database depending on something in the
requested URL (eg prefix/suffix) then that might be a bit trickier. I'm not
aware of any built-in mechanism that allows different ViewHandlers to be
returned based on URL. I'm sure there's some way to achieve this though.
Maybe your custom ViewHandler can hold a reference to a JspViewHandler,
inspect the URL/viewId and decide whether to handle the request itself or
delegate to the underlying implementation?
Regards,
Simon
Eugine F wrote:
Hello ,
The issue is the following; If I ask for a resource such as
"projects.jsp", the faces implementation implementation begins the request
prcessing life cycle. How does the faces implementation go about getting
this resource. Which class is responsible for the search of this resource
and at what stage of the life cycle? I would like to know if it is the
viewHandler and if possible the method that takes care of this process.
With this knowledge I would then like to influence the behaviour or
customize it.
Thanks
From: "Volker Weber" <[EMAIL PROTECTED]>
Reply-To: "MyFaces Discussion" <[EMAIL PROTECTED]>
To: "MyFaces Discussion" <[EMAIL PROTECTED]>
Subject: Re: modifying faces servlet to let view be loaded from a data
base by default
Date: Wed, 11 Apr 2007 09:57:18 +0200
Hi,
you can use the binding on a panel tag, and create the content in your
app.
regards,
Volker
2007/4/11, Eugine F <[EMAIL PROTECTED]>:
Hello users,
I would like to have a clue as to how I could modify the faces servlet
or
the component that I have to modify to let the view be loaded form a
data
base. Anyone has an idea?
thanks
Eugine
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