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exceptions / return codes over webservice
Hello,
I'm working on a 3-tier application. The business layer consists of a webservice layer and a Bll layer.
The bll layer catches exeptions of the underlying code. Since we might cut out the web service layer for other customers, we catch exceptions in the bll layer, but the webservice layer has also a try catch mechanism.
In case of an exception on the serverside, the bll layer will catch it, and makes a dto object with an error/return code inside.
The bll layer will return the dto to the webservice layer, which will send it to the presentation layer.
Is this good practice, or should we incorporate the error code in a (soap)exception?
I was thinking the dto making and sending could maybe result in an exception as well.
(note that because of security, we dont want to send much exception info to the presentation layer)
mp
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