ModSAX (SAX 1.1) Proposal

[James Clark]

Don Park wrote:

> >parser.setHandler("org.xml.sax.namespace", nsHandler);
> >
> >Now the handler org.xml.sax.namespace will need to be of some specific
> >type, org.xml.sax.NamespaceHandler, say.  What needs to be checked is
> >that nsHandler is of type org.xml.sax.NamespaceHandler.  Using
> >ModHandler doesn't do that.
> 
> It does if org.xml.sax.NamespaceHandler implements ModHandler.
> 
> public class NamespaceHandler implements ModHandler {}
> 
> ModParser parser;
> try
> {
>     parser.setHandler("org.xml.sax.namespace", new NamespaceHandler());
> }
> catch (Exception ex)
> {}

My point is it doesn't stop you doing:

public class PingHandler implements ModHandler { }

ModParser parser;

parser.setHandler("org.xml.sax.namespace", new PingHandler());

Declaring the second argument to be of type ModHandler doesn't ensure
that it is of the correct type.  It's not type-safe.

James



xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev at ic.ac.uk
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1
To (un)subscribe, mailto:majordomo at ic.ac.uk the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo at ic.ac.uk the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa at ic.ac.uk)