Xalan error with XSLT functions

[sagara Gunathunga <sa...@aeturnum.com>]

Hi all ,

I have several question regarding the XSLT 2 custom function handling 
with Xalan and XSLTC . I used latest Xalan 2.7.1 distribution build on 
27- Nov 2007 .


   1.

      First ,I tried to transform ext.xsl [1] file using flowing codes .

                             / TransformerFactory transformerFactory = 
TransformerFactory.newInstance()
               Transformer transformer = 
transformerFactory.newTransformer(*new*
                                                            
StreamSource("pre/ext1.xsl"));
               transformer.transform(*new* StreamSource("pre/ext.xml"), 
*new*
                                                                    
StreamResult(System.out//))/;


              I got following 2 errors :

  /(Location of error _unknown)java.lang.NoSuchMethodException_: For 
extension function,
   could not find method foo.add([ExpressionContext,] #NUMBER, 
#NUMBER).Checked both static and instance methods.
/

/  (Location of error _unknown)java.lang.NoSuchMethodException_: For 
extension function, could not find
    method foo.Hello([ExpressionContext,] #STRING).Checked both static 
and instance methods./




  2.  Then , tried to Pre-compile ext.xsl file using XSLTC using 
following code segment .
     It didn't produce any errors but class file was not generated.

/ XSLTC xsltc = *new* XSLTC();
xsltc.init();
xsltc.setDestDirectory("bin");
xsltc.setDebug(*true*);
xsltc.setClassName("ext");
FileInputStream in =*new* FileInputStream("pre/ext1.xsl");
xsltc.compile(in,"ext");/


please help me to solve these issues , specially 2^nd one is more 
important to me .

Thanks

Sagara


[1)  ext.xsl

<xsl:stylesheet version="2.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
   xmlns:xs="http://www.w3.org/2001/XMLSchema"
  extension-element-prefixes="foo"  xmlns:foo="foo">

  <xsl:function name="foo:add">
    <xsl:param name="int1"/>
    <xsl:param name="int2"/>
    <xsl:value-of select="$int1+$int2"/>
  </xsl:function>

  <xsl:function name="foo:Hello" as="xs:string">
    <xsl:param name="sentence" as="xs:string"/>
    <xsl:value-of select="$sentence" />
</xsl:function>


    <xsl:template match="/">
   the value is : <xsl:value-of select="foo:add(3,4)"/>
   <xsl:value-of select="foo:Hello(' parameter')"/>
 

</xsl:stylesheet>

Re: Xalan error with XSLT functions

[Henry Zongaro <zo...@ca.ibm.com>]

Hi, Sagara.

sagara Gunathunga <sa...@aeturnum.com> wrote on 2007-12-13 03:06:43 AM:
> <xsl:stylesheet version="2.0"
>   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>    xmlns:xs="http://www.w3.org/2001/XMLSchema"
>   extension-element-prefixes="foo"  xmlns:foo="foo">
> 
>   <xsl:function name="foo:add">
>     <xsl:param name="int1"/>
>     <xsl:param name="int2"/>
>     <xsl:value-of select="$int1+$int2"/>
>   </xsl:function>
> 
>   <xsl:function name="foo:Hello" as="xs:string">
>     <xsl:param name="sentence" as="xs:string"/>
>     <xsl:value-of select="$sentence" />
> </xsl:function>
> 
> 
>     <xsl:template match="/">
>    the value is : <xsl:value-of select="foo:add(3,4)"/>
>    <xsl:value-of select="foo:Hello(' parameter')"/>
> 
> 
> </xsl:stylesheet>
> 
>               I got following 2 errors :
> 
>   /(Location of error _unknown)java.lang.NoSuchMethodException_: For 
> extension function,
>    could not find method foo.add([ExpressionContext,] #NUMBER, 
> #NUMBER).Checked both static and instance methods.
> /
> 
> /  (Location of error _unknown)java.lang.NoSuchMethodException_: For 
> extension function, could not find
>     method foo.Hello([ExpressionContext,] #STRING).Checked both static 
> and instance methods./

That's because your stylesheet is using the XSLT 2.0 stylesheet function 
feature.  The Xalan-Java processors support only XSLT 1.0, so they attempt 
to process your stylesheet in forwards compatibility mode.

Thanks,

Henry
------------------------------------------------------------------
Henry Zongaro      XSLT Processors Development
IBM SWS Toronto Lab   T/L 313-6044;  Phone +1 905 413-6044
mailto:zongaro@ca.ibm.com