[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-633) remoting extension in handling exceptions on client side

[Simon Tian (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBSEAM-633?page=comments#action_12350601 ] 
            
Simon Tian commented on JBSEAM-633:
-----------------------------------

Upon Shane's suggestion at http://www.jboss.com/index.html?module=bb&op=viewtopic&t=98782, I'd like to detail the remoting exception handling requests:

1. If it is session timed out, there always miss components or values and thus causing exception during remote call, in this case it'd be better to redirect to a login page or a similar page so that a new session will start.

2. If it is a real runtime exception, say connetion broken, it'd better to redirect to another page so that the user can notify the administrator to do something.

> remoting extension in handling exceptions on client side
> --------------------------------------------------------
>
>                 Key: JBSEAM-633
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-633
>             Project: JBoss Seam
>          Issue Type: Patch
>          Components: Remoting
>    Affects Versions: 1.1.0.GA
>            Reporter: Nico Gau
>         Assigned To: Shane Bryzak
>            Priority: Optional
>
> Hi all,
> I don't really know what JIRA is by the way, so hopefully nobody is upset by this post. I first mailed Gavin but he told me I should put it in JIRA. 
> I currently work on a project which uses Seam Remoting directly and I didn't find a neat way in handling errors on the client side as Exceptions are not propagated to it. Therefore I changed Seam to transmit all exceptions which can be handled in the javascript part via another callback. E.g.:
> Seam.Component.getInstance('userManager').currentUser(function(user) {
> alert("user: " + user);
> },
> function(ex) {
> alert("exception occured: " + ex.getMessage());
> });
> As the exception handler is optional, the change would not brake any client code. If you are interested in the change, you can reach me at heinzbeinz AT googlemail.com

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