John, it looks like the problem is that the DTM is not registered with the
DTM manager (org.apache.xml.dtm.addDTM(dtm, getFirstFreeDTMID())). Either
that, or the return from getDocument() is returning a node handle without
the DTM identity set. LocPathIterator#setRoot is apparently getting null
from xctxt.getDTM(context);.
[The interface for DTM registration obviously needs a lot of work.]
-scott
John Gentilin
<johnglinux@eyecatch To: [EMAIL PROTECTED]
ing.com> cc: [EMAIL PROTECTED]
Sent by: Subject: Re: Extension Function
returns
[EMAIL PROTECTED]
tching.com
07/06/2001 10:36 PM
Please respond to
xalan-dev
Oops sorry about that, I keep forgetting that Process hides exception info
unless you ask nicely :)
Here you go
file:///home/gentijo/jbproject/Xalan/mkay.xsl; Line 24; Column 73;
javax.xml.transform.TransformerException: Unknown error in XPath
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1037)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1015)
at org.apache.xalan.xslt.Process.main(Process.java:839)
---------
; SystemID: file:///home/gentijo/jbproject/Xalan/mkay.xsl; Line#: 24;
Column#: 73
; SystemID: file:///home/gentijo/jbproject/Xalan/mkay.xsl; Line#: 24;
Column#: 73
javax.xml.transform.TransformerException: Unknown error in XPath
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1120)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:590)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1037)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1015)
at org.apache.xalan.xslt.Process.main(Process.java:839)
---------
java.lang.NullPointerException
at
org.apache.xpath.axes.DescendantIterator.setRoot(DescendantIterator.java:301)
at
org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:214)
at org.apache.xpath.XPath.execute(XPath.java:316)
at org.apache.xalan.templates.ElemVariable.getValue(ElemVariable.java:296)
at org.apache.xalan.templates.ElemVariable.execute(ElemVariable.java:267)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2096)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:662)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2096)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:662)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2096)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:662)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2096)
at
org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:1927)
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1120)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:590)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1037)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1015)
at org.apache.xalan.xslt.Process.main(Process.java:839)
---------
java.lang.NullPointerException
at
org.apache.xpath.axes.DescendantIterator.setRoot(DescendantIterator.java:301)
at
org.apache.xpath.functions.FuncExtFunction.execute(FuncExtFunction.java:214)
at org.apache.xpath.XPath.execute(XPath.java:316)
at org.apache.xalan.templates.ElemVariable.getValue(ElemVariable.java:296)
at org.apache.xalan.templates.ElemVariable.execute(ElemVariable.java:267)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2096)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:662)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2096)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:662)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2096)
at
org.apache.xalan.templates.ElemLiteralResult.execute(ElemLiteralResult.java:662)
at
org.apache.xalan.transformer.TransformerImpl.executeChildTemplates(TransformerImpl.java:2096)
at
org.apache.xalan.transformer.TransformerImpl.applyTemplateToNode(TransformerImpl.java:1927)
at
org.apache.xalan.transformer.TransformerImpl.transformNode(TransformerImpl.java:1120)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:590)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1037)
at
org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1015)
at org.apache.xalan.xslt.Process.main(Process.java:839)
[EMAIL PROTECTED] wrote:
> OK, this is a different error. As I said, I anticipated a few more
> problems.
>
> Can you send me a stack dump?
>
> -scott
>
>
> John Gentilin
> <johnglinux@eyecatch To:
[EMAIL PROTECTED]
> ing.com> cc: Scott Boag
<[EMAIL PROTECTED]>
> Sent by: Subject: Re:
Extension Function returns
> [EMAIL PROTECTED]
> tching.com
>
>
> 07/06/2001 07:09 PM
> Please respond to
> xalan-dev
>
>
>
> Scott,
>
> Different error this time but the same for either type of return.
> What code are you looking into ??
>
> The function still gets called, just has a bad return value. Now all the
> other
> functions i.e. New & Connect work fine. It is just query at this point.
>
> Error;
>
> file:///home/gentijo/jbproject/Xalan/mkay.xsl; Line 24; Column 73;
> XSLT Error (javax.xml.transform.TransformerException): Unknown error in
> XPath
>
> Regards
> John G
>
> [EMAIL PROTECTED] wrote:
>
> > I think I have fixed your problem with the checkin I just did. Please
> give
> > it a try. Frankly, I will not be surprised if there are more problems
as
> > you are on a bit of a new codepath.
> >
> > -scott
> >
> >
> > Scott Boag
> > To: John Gentilin
> <[EMAIL PROTECTED]>
> > 07/05/2001 cc:
> [EMAIL PROTECTED], [EMAIL PROTECTED]
> > 09:37 PM Subject: Re: Extension
> Function returns(Document link: Scott Boag)
> >
> >
> >
> > I think this is an easily fixed problem with the extension code. I'll
> look
> > into it first thing in the morning.
> >
> > -scott
> >
> >
> > John Gentilin
> > <johnglinux@eyecatch To: Scott Boag
> <[EMAIL PROTECTED]>, Xalan Mailing List
> > ing.com>
> <[EMAIL PROTECTED]>
> > Sent by: cc:
> > [EMAIL PROTECTED] Subject: Extension
> Function returns
> > tching.com
> >
> >
> > 07/05/2001 08:17 PM
> >
> >
> >
> > Ok, got my extension function (SQL) basically coded and I am deriving
> > all from DTMDefaultBaseIterators. The extension function that actually
> > returns data to be processed is either returning a DTM interface (my
> > class
> > that is derived from DTMDefaultBaseIterator) or DTMAxisIterator from
> > myClass.getAxisIterator. Both return values cause the Transformer to
> > print
> >
> > XSLT Error (javax.xml.transform.TransformerException):
> > Can not convert #UNKNOWN
> > (org.apache.xml.dtm.ref.DTMDefaultBaseIterators$AncestorIterator) to a
> > NodeList!
> >
> > I am digging into the Extension code for a clue, but thought you might
> > provide me
> > with a quick fix.
> >
> > Also I am constructing my DTMDeafultbase with just basic null values.
> >
> > DTMManager mgr -> null
> > Source source -> null (Only for DOM Wrapper correct ??)
> > int dtmIdentity -> 0
> > DTMWSFilter whiteSpaceFilter -> null for now
> > XMLStringFactory xstringfactory -> null wasn't sure
> > boolean doIndexing -> true
> >
> > Is this correct ??
> >
> > Regards
> > JG
