[digester] Unhandled element and attributes

[Lance Semmens <la...@essential.com.au>]

Do any rules exist that will execute if an unexpected element or attribute
is encountered in an XML file.

For the following xml
	<tag-a/>
	<tag-b/>
	<tag-c/>

And the following code
	Digester dig = new Digester();
	dig.addObjectCreate("*/tag-a", ATag.class);
	dig.addCallMethod("*/tag-b", "doBTag");
	dig.parse(...);

I'd like a way of handling all the patterns that I have not attached rules
to.
In my example, I have not attached a rule to <tag-c/> so I'd like to produce
a warning in this case.

Any suggestions?

Thanks,
Lance.




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Re: [digester] Unhandled element and attributes

[Bill Keese <bi...@tech.beacon-it.co.jp>]

>Do any rules exist that will execute if an unexpected element or attribute
>is encountered in an XML file.
>  
>
You are looking for something other than the standard schema validation, 
right?  Here's what I did:

        digester.setRules(new ExtendedBaseRules());

        // add all your normal rules here

        digester.addRule("*/?", new Rule() {
            public void begin(java.lang.String namespace, 
java.lang.String name, org.xml.sax.Attributes attributes)
            throws Exception{
                throw new Exception("Unknown tag " + name);
            }
        });

This is like the "default" tag in a "case" statement, that only fires if 
none of the other conditions match.

Bill

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