I am trying to use XMLFilter s, however with little luck! Any help would be
appreiciated. From what I understand an XMLFilter recieves notifications from
other XMLFilters (XMLReaders). The only thing that is required is to register a
parent for the XMLFilter. However the following example doesnt work for me!
class MyFilter extends XMLFilterImpl
{
MyFilter(XMLReader parent)
{
super(parent);
}
public void startElement(String s1, String s2, String s3, Attributes atts)
{
System.out.println ("called start element of filter: "+ s1);
}
}
class Test implements ContentHandler
{
public static void main (String args[])
{
String uri = args[0];
String parserClass= "org.apache.xerces.parsers.SAXParser";
Test t = new Test();
XMLReader parser = XMLReaderFactory.createXMLReader(parserClass);
parser.setContentHandler(t);
MyFilter filter = new MyFilter(parser);
parser.parse(uri);
}
public void startElement(String s1, String s2, String s3, Attributes atts)
{
System.out.println ("called start element from Test : "+ s1);
}
..................all other interface methods.................
}
Only the startElement of the Test class ever gets called.. MyFilter doesnt
recieve any notifications from the parser. Do I have to explicity invoke methods
from the
Test class on MyFilter? How can I use filters in SAX to distribute the parsing
process for cohessive handling of events and actions.
thanks
Ismail
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