RE: HOWTO PageBeginRender in a component [auf Viren geprueft]

[Jonathan O'Connor <Jo...@xcom.de>]

Javier,
Just to save you some time. A couple of weeks ago, we were trying to 
initialize a component, but pageBeginRender is called before the component 
parameters are set up. This meant we could not read a record from the DB 
using the id passed as a parameter :-(

You have been warned!
Ciao,
Jonathan O'Connor
XCOM Dublin



"Filip Balas" <fb...@IMVProjects.com> 
20/12/2004 19:51
Please respond to
"Tapestry users" <ta...@jakarta.apache.org>


To
"Tapestry users" <ta...@jakarta.apache.org>, "Javier Sanchez" 
<ja...@gmail.com>
cc

Subject
RE: HOWTO PageBeginRender in a component [auf Viren geprueft]






Make the component implement the pagerenderlistener interface
and implement the pagebeginreder method:

public abstract class XX extends BaseComponent implements 
pageRenderListener {

  public void pageBeginRender(PageEvent event)
    {
      // PUT initialization code here
    }

   public void pageEndRender(PageEvent event)  {
                 super.pageEndRender(event);

                 IRequestCycle cycle=event.getRequestCycle();
        if (cycle.getEngine().
 getPageRecorder(cycle.getPage().getPageName(),cycle).isLocked())
                   return;

       setX(...);
       ....
  }

Filip



-----Original Message-----
From: Javier Sanchez [mailto:javierhsanchezm@gmail.com]
Sent: December 20, 2004 12:49 PM
To: tapestry-user@jakarta.apache.org
Subject: HOWTO PageBeginRender in a component


I am trying to initialize some component's properties (transient)
using something like this:

public abstract class XX extends BaseComponent {

   public void pageEndRender(PageEvent event)  {
                 super.pageEndRender(event);

                 IRequestCycle cycle=event.getRequestCycle();
        if (cycle.getEngine().
 getPageRecorder(cycle.getPage().getPageName(),cycle).isLocked())
                   return;

       setX(...);
       ....
  }

But nothing happens.  pageEndRender is never called.  Why?  How can I
do component's intializations if I do not have a pageBeginRender at
BaseComponent ?  In the above code, isLocked() is called
appropriately?

JAVIER S.

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