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http://jira.jboss.com/jira/browse/JBSEAM-633?page=comments#action_12350674 ]
Nico Gau commented on JBSEAM-633:
---------------------------------
Hi,
I needed the exception stuff for handling self thrown exceptions. E.g. if you have a
backend function
@WebRemote
void dummy() throws MyException1, MyException2
{
if(...)
throw new MyException1(...);
if(...)
throw new MyException2(...);
...
}
then you can throw Exceptions in there and these Exceptions are transmitted to the client
which can handle it. Currently you need to have a return value which represents the error
so you can handle it.
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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