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   RE: ModSAX (SAX 1.1) Proposal

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  • From: Jarle Stabell <jarle.stabell@dokpro.uio.no>
  • To: "'xml-dev@ic.ac.uk'" <xml-dev@ic.ac.uk>
  • Date: Tue, 16 Feb 1999 00:26:23 +0100

David Megginson wrote:

>   public interface ModParser extends Parser
>   {
>     public abstract void setFeature (String featureID, boolean state)
>       throws SAXNotSupportedException;
>     public abstract void setHandler (String handlerID, ModHandler 
>       throws SAXNotSupportedException;
>   }

Is it obvious that one should throw exceptions on not supported?
I believe it in many cases would be more comfortable if it returned a 
boolean supported or not instead of throwing an exception, as many clients 
probably want/need to check whether a particular feature is supported or 
not (and trade off behaviour accordingly)


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