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Posted to users@tapestry.apache.org by Angelo Chen <an...@yahoo.com.hk> on 2009/03/15 14:51:28 UTC

t5: catching exception in onException

Hi,

I'm trying to use onException to catch exceptions, when I throw an exception
from onActivate, onException can catch it, but if it is thrown from
getEntries which is a property accessed from the .tml, onException can't
catch it, t5's ExceptionReport got it, any idea why I can't catch this
exception in the onException?

Thanks,

 	
	// this can not be catched
	public List<VideoEntry> getEntries() throws Throwable {
        throw new Exception("aaa");   
    }

	// this can be catched
    Object onActivate(String code) throws Throwable {
		throw new Exception("bbb");
    }

  	Object onException(Throwable cause) {
        return PageNotFound.class;
    }
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Re: t5: catching exception in onException

Posted by luna_guo <gh...@163.com>.
See http://tapestry.apache.org/tapestry5/guide/event.html
onException caches exceptions throwed by event handlers.

Angelo Chen wrote:
> 
> Hi,
> 
> I'm trying to use onException to catch exceptions, when I throw an
> exception from onActivate, onException can catch it, but if it is thrown
> from getEntries which is a property accessed from the .tml, onException
> can't catch it, t5's ExceptionReport got it, any idea why I can't catch
> this exception in the onException?
> 
> Thanks,
> 
>  	
> 	// this can not be catched
> 	public List<VideoEntry> getEntries() throws Throwable {
>         throw new Exception("aaa");   
>     }
> 
> 	// this can be catched
>     Object onActivate(String code) throws Throwable {
> 		throw new Exception("bbb");
>     }
> 
>   	Object onException(Throwable cause) {
>         return PageNotFound.class;
>     }
> 

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