Hi Barry,
Am 04/03/16 um 13:00 schrieb Barry Books:
Using data directly from the client is never a good idea. While in this
case it's probably fine it's a bad habit to fail into.
Agreed
I would make a enum
with the Cookie string and the page class. Use enum.valueOf(cookie) to
convert from String to enum and then return the class from the enum. I
suspect you can declare the enum in the index class so you can add to it
without restarting the web server. This will also allow you to refactor
your page classes.
This means changing the java code whenever a page is added/removed which
the author initially tried to avoid. But there is maybe another way:
What about using PageRenderLinkSource to force a call to the page,
particularly the onPassivate method like
try {
final Link link =_prls.createPageRenderLink(page); return page;
}catch (final Exception e) {
// page is not existing, or not accessible for security reasons
return Index.class;
}
--- snip ---
sample of "your page"
@RequiresAuthentication // todo add roles and more Object onPassivate()
{
...
}
In case the user is not authenticated or does not have roles an
exception is thrown, therefore the page detection is considerably
dynamic and not static compared to using if cascades or an enum. But I
guess there are still more ways to solve it...
Jens
On Friday, March 4, 2016, JumpStart <geoff.callender.jumpst...@gmail.com>
wrote:
This example includes returning the logical page name as String:
http://jumpstart.doublenegative.com.au/jumpstart7/examples/navigation/returntypes1
<
http://jumpstart.doublenegative.com.au/jumpstart7/examples/navigation/returntypes1
Geoff
On 4 Mar 2016, at 2:22 pm, mailingl...@j-b-s.de <javascript:;> wrote:
You can just return the string and tapestry locates the page on its own
return cookieVal;
Just make sure the cookieval is a valid page name (class name without
package)
Jens
Von meinem iPhone gesendet
Am 04.03.2016 um 07:12 schrieb Anbazhagan.G <anbazhaga...@snovabits.net
<javascript:;>>:
Hi All,
I am working in web application using tapestry framework. I have
following pages a,b,c,d and Index in my application. In Index page, check
some condition and redirect to a particular page. My code,
|if(null!=cookieVal){if(cookieVal.equalsIgnoreCase("a")){returnA.class;}elseif(cookieVal.equalsIgnoreCase("b")){returnB.class;}elseif(cookieVal.equalsIgnoreCase("c")){returnC.class;}elseif(cookieVal.equalsIgnoreCase("d")){returnD.class;}}|
Here conditions are increased if pages are increased. How can I
optimize this condition check and redirect to particular page.
--
Best Regards,
Anbazhagan.G
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