Saxon XSLT and XQuery Processor

I was rather assuming that the message means what it says: that you haven't
supplied a value for the external variable. The pragma stops this being an
error. I can't think of any reason why there should be a difference between
external variables in the main module and those in a library module - but
it's certainly possible. How are you invoking the query?
 
Michael Kay
http://www.saxonica.com/


  _____  

From: saxon-help-admin@...
[mailto:saxon-help-admin@...] On Behalf Of Gee, Gregory
Sent: 26 April 2006 21:32
To: saxon-help@...
Subject: RE: [saxon] External var in xquery module


 
  Is it ignored only if used in a module?  Is this why I didn't get this
problem while declaring in the main xquery?
 
 
  Also, I am getting this same error for external variables that don't have
defaults.
 
declare variable $mymod:prefixListMinSequence as xs:string external;
 
Thanks,
Greg



-----Original Message-----
From: saxon-help-admin@...
[mailto:saxon-help-admin@...] On Behalf Of Michael Kay
Sent: Wednesday, April 26, 2006 1:09 PM
To: saxon-help@...
Subject: RE: [saxon] External var in xquery module


You're using the old syntax for pragmas. For the current syntax, see:
 
http://www.saxonica.com/documentation/using-xquery/extensions.html
 
Your "pragmas" will be interpreted as comments, and ignored.
 
Michael Kay
Saxonica Limited


  _____  

From: saxon-help-admin@...
[mailto:saxon-help-admin@...] On Behalf Of Gee, Gregory
Sent: 26 April 2006 17:27
To: saxon-help@...
Subject: [saxon] External var in xquery module




  Trying to figure out if it is possible and if so, how to do it.    In my
main xquery, I had the following.  I am using SaxonB 8.7.1.

declare variable $last_model as xs:string external; (::pragma saxon:default
"last"::) 

  When I move it into a module and the module is imported in my main xquery.


declare variable $mymod:last_model as xs:string external; (::pragma
saxon:default "last"::) 

  Once I do that, 

     [java] XTDE0050: No value supplied for required parameter $last_model 
     [java] net.sf.saxon.trans.DynamicError: No value supplied for required
parameter $last_model 
     [java] at
net.sf.saxon.instruct.GlobalParam.evaluateVariable(GlobalParam.java:44) 
     [java] at
net.sf.saxon.expr.VariableReference.evaluateVariable(VariableReference.java:
237) 
     [java] at
net.sf.saxon.expr.ExpressionTool.lazyEvaluate(ExpressionTool.java:226) 
     [java] at
net.sf.saxon.functions.ExtensionFunctionCall.iterate(ExtensionFunctionCall.j
ava:109) 
     [java] at
net.sf.saxon.expr.ComputedExpression.evaluateItem(ComputedExpression.java:51
9) 
     [java] at
net.sf.saxon.expr.ExpressionTool.eagerEvaluate(ExpressionTool.java:297) 
     [java] at
net.sf.saxon.expr.ExpressionTool.lazyEvaluate(ExpressionTool.java:245) 
     [java] at
net.sf.saxon.instruct.GlobalVariable.getSelectValue(GlobalVariable.java:180)

     [java] at
net.sf.saxon.instruct.GlobalVariable.evaluateVariable(GlobalVariable.java:20
4) 
     [java] at
net.sf.saxon.expr.VariableReference.evaluateVariable(VariableReference.java:
237) 
     [java] at
net.sf.saxon.expr.ExpressionTool.lazyEvaluate(ExpressionTool.java:226) 
     [java] at
net.sf.saxon.functions.ExtensionFunctionCall.iterate(ExtensionFunctionCall.j
ava:109) 
     [java] at
net.sf.saxon.expr.ComputedExpression.evaluateItem(ComputedExpression.java:51
9) 
     [java] at
net.sf.saxon.expr.ExpressionTool.eagerEvaluate(ExpressionTool.java:297) 
     [java] at
net.sf.saxon.expr.ExpressionTool.lazyEvaluate(ExpressionTool.java:245) 
     [java] at net.sf.saxon.expr.LetExpression.eval(LetExpression.java:164) 
     [java] at
net.sf.saxon.expr.LetExpression.iterate(LetExpression.java:147) 
     [java] at
net.sf.saxon.expr.ForExpression$MappingAction.map(ForExpression.java:609) 
     [java] at
net.sf.saxon.expr.MappingIterator.next(MappingIterator.java:55) 
     [java] at
net.sf.saxon.expr.MappingIterator.next(MappingIterator.java:70) 
     [java] at
net.sf.saxon.expr.ItemMappingIterator.next(ItemMappingIterator.java:39) 
     [java] at
net.sf.saxon.instruct.Block$BlockIterator.next(Block.java:411) 
     [java] at
net.sf.saxon.instruct.Block$BlockIterator.next(Block.java:411) 
     [java] at
net.sf.saxon.query.XQueryExpression$ErrorReportingIterator.next(XQueryExpres
sion.java:521) 
     [java] at
net.sf.saxon.query.QueryResult.serializeSequence(QueryResult.java:126) 



Thanks, 
Greg