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From dles...@locus.apache.org
Subject cvs commit: xml-site/targets/xalan faq.html
Date Fri, 03 Mar 2000 14:34:09 GMT
dleslie     00/03/03 06:34:09

  Added:       targets/xalan faq.html
  Log:
  Weekly update
  
  Revision  Changes    Path
  1.1                  xml-site/targets/xalan/faq.html
  
  Index: faq.html
  ===================================================================
  <HTML><HEAD><SCRIPT language="JavaScript" src="resources/script.js" type="text/javascript"></SCRIPT><TITLE>Frequently
asked questions</TITLE></HEAD><BODY alink="#ff0000" bgcolor="#ffffff" leftmargin="4"
link="#0000ff" marginheight="4" marginwidth="4" text="#000000" topmargin="4" vlink="#0000aa"><TABLE
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alt="Sample Apps" border="0" height="12" hspace="0" name="side-samples" onLoad="rolloverLoad('side-samples','graphics/samples-label-2.jpg','graphics/samples-label-3.jpg');"
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align="left" valign="top" width="500"><TABLE border="0" cellpadding="3" cellspacing="0"><TR><TD><TABLE
border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="666699"
colspan="2" width="494"><TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD
bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="492"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#0086b2" width="492"><FONT color="#ffffff" face="arial,helvetica,sanserif"
size="+1"><IMG border="0" hei
ght="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Questions</B></FONT></TD><TD
bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#017299" height="1" width="492"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD
bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="484"><FONT color="#000000" face="arial,helvetica,sanserif"><UL><LI><A
href="#faq-1">Where do I go to learn about XSLT</A></LI><LI><A href="#faq-2">Which
version of Xerces should I be using?</A></LI><LI><A href="#faq-3">Are
there any shortcuts for using a transformation result as input for another transformation?</A></LI><LI><A
href="#
faq-4">Why do XSLTProcessor and StylesheetRoot both have process() methods to perform transformations?</A></LI><LI><A
href="#faq-5">What can I do to speed up transformations?</A></LI><LI><A
href="#faq-6">I'm getting a NoClassDefFound error. What has to be on the class path?</A></LI><LI><A
href="#faq-7">Stylesheet validation</A></LI></UL></FONT></TD></TR></TABLE><BR><TABLE
border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD bgcolor="666699"
colspan="2" width="494"><TABLE border="0" cellpadding="0" cellspacing="0" width="494"><TR><TD
bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="492"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG
border="0" height="1" hspace="0"
 src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="492"><FONT
color="#ffffff" face="arial,helvetica,sanserif" size="+1"><IMG border="0" height="2"
hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Answers</B></FONT></TD><TD
bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#017299" height="1" width="492"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="492"></TD><TD
bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="484"><FONT color="#000000" face="arial,helvetica,sanserif"><BR><A
name="faq-1"><!--anchor--></A><TABLE border="0" cellpadding="0" cellspacing="0"
width="484"><TR><TD bgc
olor="666699" colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0"
width="484"><TR><TD bgcolor="#039acc" height="1" width="1"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD bgcolor="#039acc"
height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="482"></TD><TD bgcolor="#0086b2" height="1" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD
bgcolor="#039acc" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#0086b2" width="482"><FONT color="#ffffff"
face="arial,helvetica,sanserif"><IMG border="0" height="2" hspace="0" src="resources/void.gif"
vspace="0" width="2"><B>Where do I go to learn about XSLT?</B></FONT></TD><TD
bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1"
w
idth="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif"
size="-1"><P>The definitive sources are the W3C XSLT and XPath recommendations: <A
href="http://www.w3.org/TR/xslt" target="_top">W3C Recommendation 16 November 1999 XSL
Transformations (XSLT) Version 1.0</A> and 
      <A href="http://www.w3.org/TR/xpath" target="_top">XML Path Language (XPath) Version
1.0</A>.</P>
      <P>For general questions not specific to Xalan, see Dave Pawson's <A href="http://freespace.virgin.net/b.pawson/xsl/index.html#top">XSL
Frequently Asked Questions</A>.</P>
      <P>For a brief listing of tutorials, discussion forums, and other materials, see
<A href="overview.html#uptospeed">Getting up to speed with XSLT</A>.</P></FONT></TD></TR></TABLE><BR><A
name="faq-2"><!--anchor--></A><TABLE border="0" cellpadding="0" cellspacing="0"
width="484"><TR><TD bgcolor="666699" colspan="2" width="484"><TABLE border="0"
cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG
bo
rder="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Which
version of Xerces should I be using?</B></FONT></TD><TD bgcolor="#017299"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif"
size="-1"><P>The Xalan release notes includes information about the Xerces release
with which the Xalan release has 
      been coordinated and tested. See <A href="readme.html#status">Status</A></P></FONT></TD></TR></TABLE><BR><A
name="faq-3"><!--anchor--></A><TABLE border="0" cellpadding="0" cellspacing="0"
width="484"><TR><TD bgcolor="666699" colspan="2" width="484"><TABLE border="0"
cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG
border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2">
<B>Are there any shortcuts for using a transformation result as input for another transformation?</B></FONT></TD><TD
bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif"
size="-1"><P>You can always get a transformation result from the <A href="" target="_top"></A>
object, 
      and use it to set an <A href="apidocs/org/apache/xalan/xslt/XSLTInputSource.html"
target="_top">XSLTInputSource class</A> object for another transformation, but yes,
there is a
      shortcut. Basically, you want to set up the XSLTResultTarget object
       that receives the output from the first transformation (performed with the XML source,
the first stylesheet, and the first
       <A href="apidocs/org/apache/xalan/xslt/XSLTProcessor.html" target="_top">XSLTProcessor
interface</A> object) to function as a SAX DocumentHandler in conjunction with a second
        XSLTProcessor object that uses the second stylesheet and also functions as a DocumentHandler.</P>

      <P>To walk through a brief example, see <A href="usagepatterns.html#sax">Generating
and responding to 
      SAX events</A></P>.</FONT></TD></TR></TABLE><BR><A
name="faq-4"><!--anchor--></A><TABLE border="0" cellpadding="0" cellspacing="0"
width="484"><TR><TD bgcolor="666699" colspan="2" width="484"><TABLE border="0"
cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG
border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>Why
do XSLTProcessor and StylesheetRoot both have proc
ess() methods to perform transformations?</B></FONT></TD><TD bgcolor="#017299"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif"
size="-1"><P>To perform a transformation, Xalan uses XML input, an XSL stylesheet,
and XSLTProcessor. In one scenario, you use
      <A href="apidocs/org/apache/xalan/xslt/XSLTInputSource.html" target="_top">XSLTInputSource
class</A> objects as containers for the XML input and the XSL stylesheet. To perform
the
      transformation, the <A href="apidocs/org/apache/xalan/xslt/XSLTProcessor.html" target="_top">XSLTProcessor
interface</A> object &quot;compiles&quot; the stylesheet, producing a <A
href="apidocs/org/apache/xalan/xslt/StylesheetRoot.html" target="_top">StylesheetRoot class</A>
object, but you the user have no direct interaction with the StylesheetRoot.</P>
      <P>Example:</P>
      <DIV align="right"><TABLE border="0" cellpadding="0" cellspacing="4" width="464"><TR><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#ffffff" width="462"><FONT size="-1"><PRE>import org.apache.xalan.xslt.*;
      ...
      XSLTProcessor proc = XSLTProcessorFactory.getProcessor();
      proc.process(new XSLTInputSource(&quot;foo.xml&quot;), 
                   new XSLTInputSource(&quot;foo.xsl&quot;), 
                   new XSLTOutputTarget(&quot;foo.out&quot;);</PRE></FONT></TD><TD
bgcolor="#0086b2" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR></TABLE></DIV>
      <P>Second scenario: you want to perform a number of transformations with the same
stylesheet. To improve performance, you
      compile the stylesheet once, and use the resulting <A href="apidocs/org/apache/xalan/xslt/StylesheetRoot.html"
target="_top">StylesheetRoot class</A> object for each
      transformation.</P>
      <P>You can use the <A href="apidocs/org/apache/xalan/xslt/XSLTProcessor.html#process(org.apache.xalan.xslt.XSLTInputSource,org.apache.xalan.xslt.XSLTInputSource,org.apache.xalan.xslt.XSLTOutputTarget)">
       XSLTProcessor process()</A> method with a compiled stylesheet. For an example,
see <A href="usagepatterns.html#compiled">Compiling stylesheets</A>. But an XSLTProcessor
object is not thread-safe and must be
      reset between transformations. A StylesheetRoot object, on the other hand, is thread-safe
and may even be used concurrently
      (running in a servlet, for example) to perform multiple transformations, so it is more
straightforward to use the
      <A href="apidocs/org/apache/xalan/xslt/StylesheetRoot.html#process(org.apache.xalan.xslt.XSLTInputSource,org.apache.xalan.xslt.XSLTOutputTarget)">
      StylesheetRoot process()</A> method to perform the transformations.</P>
        <P>Example:</P>
        <DIV align="right"><TABLE border="0" cellpadding="0" cellspacing="4" width="464"><TR><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#ffffff" width="462"><FONT size="-1"><PRE>import org.apache.xalan.xslt.*;
        ...
        // Pass in an array of XML input file names and an 
        // &quot;uncompiled&quot; stylesheet file name.
        public multiTransform(String[] xmlInputFiles, String xslFile)
        {
          XSLTProcessor proc = XSLTProcessor.Factory.getProcessor();
          StylesheetRoot style = proc.ProcessStylesheet
                                            (new XSLTInputSource(xslFile));
          for (int i = 0; i &lt; xmlInputFiles.length; i++) 
          {
            style.process(new XSLTInputSource(xmlInputFiles[i],
                          new XSLTResultTarget(xmlInputFiles[i] + &quot;.out&quot;));
          }
        }
        ...</PRE></FONT></TD><TD bgcolor="#0086b2" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#0086b2" height="1" width="462"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="462"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR></TABLE></DIV>
         </FONT></TD></TR></TABLE><BR><A name="faq-5"><!--anchor--></A><TABLE
border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="666699"
colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD
bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG
border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>What
can I do to speed up transformations?</B></FONT></TD><TD bgcolor=
"#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#017299" height="1" width="482"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="482"></TD><TD bgcolor="#017299" height="1" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif"
size="-1"><P>To be written.</P><UL>
      <LI>Use the DTM liaison and XML parser.</LI>
      <LI>Use compiled stylesheets.</LI>
      <LI>Set the XSLTProcessor to function as a SAX DocumnetHandler, and respond to
SAX events rather than waiting for
       the entire transformation to be completed.</LI>
       <LI>Set up your stylesheets to function efficiently.</LI>
      </UL></FONT></TD></TR></TABLE><BR><A name="faq-6"><!--anchor--></A><TABLE
border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="666699"
colspan="2" width="484"><TABLE border="0" cellpadding="0" cellspacing="0" width="484"><TR><TD
bgcolor="#039acc" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG
border="0" height="2" hspace="0" src="resources/void.gif" vspace="0" width="2"><B>I'm
getting a NoClassDefFound error. What has to be on the class pat
h?</B></FONT></TD><TD bgcolor="#017299" width="1"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD></TR><TR><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif"
size="-1"><OL>
      <LI>xalan.jar xerces.jar must always be on the class path.<BR><BR></LI>
      <LI>As a general rule, xerces.jar must be on the class path. If you have set up
an extension of <A href="" target="_top"></A> to work with another XML parser,
all you need from xerces.jar are the serializers 
      and the implementation of the SAX 2 interface.<BR><BR></LI>
      <LI>To run the samples in the samples subdirectories, xalansamples.jar must be
on the class path. To run the servlet (in
      samples/servlet), the javax.servlet and javax.servlet.http packages must also be on
the class path. Sun distributes these
      packages in the JSWDK 1.0.1 servlet.jar file.<BR><BR></LI>
      <LI>To run extensions (including the samples in samples/extensions), bsf.jar,
and bsfengines.jar must be on the 
      class path. To run extensions implemented in JavaScript, js.jar must also be on the
class path. For information on what 
      you need to run extensions implemented in other scripting languages, see <A href="extensions.html#supported-lang">Supported
languages</A>.<BR><BR></LI>            
      </OL>
      <P>For more information, see <A href="getstarted.html#classpath">Setting
up the system class path</A>.</P></FONT></TD></TR></TABLE><BR><A
name="faq-7"><!--anchor--></A><TABLE border="0" cellpadding="0" cellspacing="0"
width="484"><TR><TD bgcolor="666699" colspan="2" width="484"><TABLE border="0"
cellpadding="0" cellspacing="0" width="484"><TR><TD bgcolor="#039acc" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#039acc" height="1" width="482"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#0086b2" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#039acc" width="1"><IMG
border="0" height="1" hspace="0" src="resources/void.gif" vspace="0" width="1"></TD><TD
bgcolor="#0086b2" width="482"><FONT color="#ffffff" face="arial,helvetica,sanserif"><IMG
border="0" height="2" hspace="0" src="resources/v
oid.gif" vspace="0" width="2"><B>How do I validate an XSL stylesheet?</B></FONT></TD><TD
bgcolor="#017299" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR><TR><TD bgcolor="#0086b2" height="1"
width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif" vspace="0"
width="1"></TD><TD bgcolor="#017299" height="1" width="482"><IMG border="0"
height="1" hspace="0" src="resources/void.gif" vspace="0" width="482"></TD><TD
bgcolor="#017299" height="1" width="1"><IMG border="0" height="1" hspace="0" src="resources/void.gif"
vspace="0" width="1"></TD></TR></TABLE></TD></TR><TR><TD
width="10">&nbsp;</TD><TD width="474"><FONT color="#000000" face="arial,helvetica,sanserif"
size="-1">
        <P>An XSL stylesheet is an XML document, so it can have a DOCTYPE and be subject
to validation, right? </P>
        <P>The XSLT Recommendation includes a <A href="http://www.w3.org/TR/xslt#dtd">DTD
Fragment 
        for XSL Stylesheets</A> with some indications of what you need to do to create
a complete DTD for a given
        stylesheet. Keep in mind that stylesheets can include literal result elements and
produce output that is not valid
        XML.</P>
        <P>You can use the xsl:stylesheet doctype defined in xsl-html40s.dtd for stylesheets
that generate HTML.</P>
  		</FONT></TD></TR></TABLE><BR></FONT></TD></TR></TABLE><BR></TD></TR></TABLE></TD></TR></TABLE><BR><TABLE
border="0" cellpadding="0" cellspacing="0" width="620"><TR><TD bgcolor="#0086b2"><IMG
height="1" src="images/dot.gif" width="1"></TD></TR><TR><TD align="center"><FONT
color="#0086b2" size="-1"><I>
                Copyright &copy; 2000 The Apache Software Foundation.
                All Rights Reserved.
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