xml-dev - Re: SAX: Exception Handling

[James Clark <jjc@jclark.com>]

I've just switched XP to use the exception handling approach I'm
advocating for SAX, and I'm very happy with it:

- if you

import com.jclark.xml.parse.*;
import com.jclark.xml.parse.io.*;

you get an interface where the handler methods can throw IOException and
where the parse method throws IOException (the same as the old XP
interface)

- if you

import com.jclark.xml.parse.*;
import com.jclark.xml.parse.awt.*;

you get an interface where the handler methods can throw AWTException
and where the parse method throws AWTException and IOException;

- if your application needs to throw some other kind of exception, you
can either create a package with 4 trivial wrapper classes (which could
be automatically generated from the com.jclark.xml.parse.awt.* source),
or you can use com.jclark.xml.parse.base.* where the handler methods are
declared as throwing Exception and the parse method is declared as
throwing IOException and ApplicationException (which is a wrapper
analagous to SAXException).

James

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