I believe that also gets covered on the website:
http://tapestry.apache.org/tapestry4.1/developmentguide/exceptionpages.html
On 12/3/06, Sam Gendler <[EMAIL PROTECTED]> wrote:
In hivmind.xml:
<contribution configuration-id="tapestry.InfrastructureOverrides">
<property name="exceptionPageName" value="CustomExceptionPage"/>
</contribution>
In your template for the custom exception:
<span jwcid="exception"/>
will render the exception if you have the following in your .page file:
<component id="exception" type="ExceptionDisplay">
<binding name="exceptions" value="ognl:exceptions"/>
</component>
You can also use the following to render the request
<component id="request" type="RequestDisplay" />
My class looks like this:
public abstract class CustomExceptionPage extends StaticBasePage
implements PageDetachListener {
public abstract void setExceptions(ExceptionDescription[] exceptions);
private static Logger log = Logger.getLogger(CustomExceptionPage.class);
public void setException(Throwable value)
{
log.error(value, value);
ExceptionAnalyzer analyzer = new ExceptionAnalyzer();
ExceptionDescription[] exceptions = analyzer.analyze(value);
setExceptions(exceptions);
}
}
I don't remember where I got all that from, but it was either Kent
Tong's book or the user guide on the Tapestry website. There is a
small chance I found it in "Tapestry in Action" which is the Tap 3
book.
--sam
On 12/3/06, Cyrille37 <[EMAIL PROTECTED]> wrote:
> Hello,
> I'm still learning Tapestry, and generally Java Web Application ...
> Now I can understand a beat about Tapestry and create little working
> project.
> Here is the time for me to learn how to manage errors, like trapping an
> underground exception in the view layer.
>
> The following example is from the "Kent Tong 's book" source code: the
> "shop" example.
> There is a page to view shop's products details:
> ProductDetails(.html,.page,.java).
>
> In ProductDetails.java there are accessors for a product details like :
> public String getName() {
> return lookup().getName();
> }
> public String getDesc() {
> return lookup().getDesc();
> }
> public double getPrice() {
> return lookup().getPrice();
> }
> The lookup method to get a Product is :
> private Product lookup() {
> return Catalog.getGlobalCatalog().lookup(getProductId());
> }
>
> In ProductDetails.page there are components like :
> <component id="name" type="Insert">
> <binding name="value" value="name"/>
> </component>
> <component id="desc" type="Insert">
> <binding name="value" value="desc"/>
> </component>
> <component id="price" type="Insert">
> <binding name="value" value="price"/>
> </component>
>
> How can I catch an exception throwed by
> Catalog.getGlobalCatalog().lookup(getProductId()) when a ProductId is
> not valid (does not exists) ?
> I would like to display a nicer page than the default Tapestry's
> Exception page.
> The problem is that the exception occurs while parsing the
> ProductDetails's specification page (ProductDetails.page) where
> components are binded.
>
> Have you got any idea or method on how to manage that kind of problems ?
>
> thanks a lot for your experience share.
> Cyrille.
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
--
Jesse Kuhnert
Tapestry/Dojo/(and a dash of TestNG), team member/developer
Open source based consulting work centered around
dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
