On Fri, 23 Sep 2011 00:52:39 +0200, Israel Hilerio <[email protected]> wrote:
This is our understanding on how the spec needs to change to support the new WebIDL exception handling model. We would start by removing all of the constants from IDBDatabaseException. After that, the only thing left would be message. Do we still need to have this class definition? It seems we can remove it.

In either case, we would have to continue by defining a set of exception types and code mappings. Each exception type will have a code value of 0.

The mapping will look like this:
UnknownError(0)
NonTransientError(0)
NotFoundError(0)
ConstraintError(0)
DataError(0)
NotAllowedError(0)
TransactionInactiveError(0)
AbortError(0)
ReadOnlyError(0)
TimeoutError(0)
QuotaError(0)
VersionError(0)

If we believe the message attribute is still relevant, then we would define the IDBDatabaseException class like this:
exception IDBDatabaseException: DOMException {
    DOMString      message;
};
Using this approach, IDBDatabaseException will inherit the name and code properties from DOMException.

Is this what you had in mind?

The new approach is outlined here:

  http://www.w3.org/Bugs/Public/show_bug.cgi?id=10623#c14

I should probably update DOM4 with some easy to use language, including how this maps to the code member.


--
Anne van Kesteren
http://annevankesteren.nl/

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