xml-dev - RE: SAX2: Parser interface

[Leigh Dodds <ldodds@ingenta.com>]

>     public void setProperty (String property, Object value)
>       throws SAXNotRecognizedException, SAXNotSupportedException;
>     public Object getProperty (String property)
>       throws SAXNotRecognizedException;
<snip!>
> 2. Extended handler types (for schemas, or what-have-you) can be set
>    using the setProperty method with the appropriate URI identifier.
<snip!>
> 3. Should we just use setProperty to set the optional handlers?

Couldn't there be a SAX2 Handler interface

public interface Handler
{
}

which marks a SAX2 Handler. The other handler interfaces are subclasses
of this. Giving a generic:

public void setHandler(Handler handler, String identifier)
	throws SAXNotRecognizedException, SAXNotSupportedException;

- identifiers for the standard handlers can be provided (e.g. as
public final constants)

- additional extended handlers use the same method to register, only
using the appropriate URI identifier as you suggest.

IMHO this is a cleaner way of registering handlers. I don't have to
remember that one Handler is registered explicitly (setDTDHandler) and
another through
a setProperty call. A Handler isNotA property.

Cheers,

L.


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