Re: Antwort: page navigation (return to arbitrary page)

[Joachim Van der Auwera]

Kristian Marinkovic wrote:
you could change your setReturnPage method to store 
a string with the page name  or a Class instance of the 
return page.... 
  
If I do that, I completely lose state. I could store and restore the 
state if there was a way to get a page when the class or name is provided.

Now, I think I can only use "InjectPage" but this would require the page 
name to be known in advance, which is again not the case.

Any ideas how to solve that one?

Joachim



eg,
Object onActionFromLink()
{
    // initialize
    destinationPage.setReturnPage(ReturnPage.class);
    return destination;
}

g,
kris



Joachim Van der Auwera <[EMAIL PROTECTED]> 
04.12.2007 15:27
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Thema
page navigation (return to arbitrary page)







I have situation where I have a page in my application which can be
reached from many different pages. When a certain link is indicated, I
want the user to move back to the previous page. The problem is that
this class has no idea (cannot know) what the possible return pages are.

I thought about using a mechanism like the following, on the originator
pages, include an actionlink component with the following code

---- OriginatorPage

@InjectPage
private DestinationPage destination;

Object onActionFromLink()
{
    // initialize
    destinationPage.setReturnPage( this );
    return destination;
}
-----

On the destination page, I would have another actionlink to get back to
the originator page.

----- DestinationPage

@Persist
private Object returnPage;

public void setReturnPage( Object o ) { returnPage = o; }

Object onActionFromLinkback()
{
    return page;
}

-----

Unfortunately this does not work, presumably because the originator page
is detached.

Is there some way serialize/deserialize a page so that I can be used?

It would be possible to add two methods which store/restore all the
persisted fields, but I still need to be able to attach/inject a page of
which the page name is not known in advance.

Any suggestions?

Thanks for the help,
Joachim

  


--
Joachim Van der Auwera
PROGS bvba, progs.be


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