Using external function in xquery

Question

hi all,
i'm using the Java Api to access Berkeley dbxml.
i'm trying to raise a number, i get from the database,to a power
the code i use is :
String Query = "declare namespace power = 'java:java.lang.Math';";
Query += "declare function power:pow($this as xs:double,$val as xs:double) as xs:double external; \n"+
"power:pow(number1,number2)";
XmlQueryContext context = XmlManager.createQueryContext();
XmlResults results = XmlManager.query(str, context, null);
,,when i run the programm the answer is an uncaught exception from the database.
Does somebody know how i can use the external function power?
Message was edited by:
user556027

Answer 1

On closer reflection, I realized that external functions would not help with the problem I described. I suppose I would need to do some parsing on my own side and let Javascript retrieve the files (as with non-XML AJAX), let Firefox convert each file to its inner (well-formed) representation, do any necessary processing to circumvent deliberate attempts to create poorly convertible documents (e.g., a certain famous site's trick to have an attribute like )="", an incomplete DOCTYPE, or comments like <!--- ). Though, I do think it would be nice if BDBXML could do such cleaning up HTML to be well-formed before including it (or even allow non-XML documents to be loaded into a document which was flagged as non-XML where detected as such).