Help, Creating an extension element that takes a DTM as a parameter.

[John Gentilin]

I am in the process of updating the SQL Extensions to add a 
skipRec method to help with SQL Pagination but its killing me.

The problem is, the XConnection#pquery returns an SQLDocument 
that is cast to its base class via its return type.
public DTM pquery( ExpressionContext exprContext, String queryString, String typeInfo)

I store the output of pquery in in a variable.
<xsl:variable name="cfrs" select="sql:pquery($Xcon1, $CFRQuery)"/>
Then I use that variable as a parameter to the skip method.
<xsl:value-of select="sql:skip($Xcon1, $cfrs, '4')" />
But I have yet to find the correct method signature that
will satisify the MethodResolver.
The Error message I get is
java.lang.NoSuchMethodException: 
 For extension function, could not find method 
  static org.apache.xalan.lib.sql.XConnection.skip(
    [ExpressionContext, ]#UNKNOWN (org.apache.xalan.lib.sql.XConnection), #NODESET, #STRING) 
nor class org.apache.xalan.lib.sql.XConnection.skip([ExpressionContext,] #NODESET, #STRING).

The methods I am currently trying are

public static void skip( ExpressionContext exprContext, XConnection doc, XNodeSet ns, 
String value )
public static void skip( ExpressionContext exprContext, SQLDocument doc, XNodeSet ns, 
String value )
public void skip( ExpressionContext exprContext, XNodeSet ns, XString value )
public void skip( XConnection doc, String value )
Can anyone shed some light on the situation ??



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