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Add root Element to List

Add root Element to List

2003-12-02       - By Sinkinson,Andrew [NCR]

 Back

Hi,

I am somewhat new to Jdom and have the following Question sorry if it's
a basic one.  I'm using Xpath to extract a repeating group of elements
from an XML document and storing them in a List.  ( This work's great )

What would be the best way to add a root element to the List so that I
can write out a valid XML document to the file system?  Any help would
be much appreciated.

Thanks,
Andrew

   try{
     String filename = "C:/SearchGeo/XML/test.xml";
     String teststring = "ALKALINITY";

     SAXBuilder builder = new SAXBuilder();
     Document doc = builder.build(new File(filename));

     XPath dataPath =
XPath.newInstance("/Searchresult/metadata[descendant::enttypl='"+teststr
ing+"']");

    dataPath.

     List results = dataPath.selectNodes(doc);

     /*  Add root element   */

   System.out.println("Results Found "+ results.size() +" metadata
record");

   XMLOutputter Xout = new XMLOutputter();
   Xout.setEncoding("ISO-8859-1");
   Xout.output(results ,System.out);
   }
   catch(JDOMException E){E.printStackTrace();}

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<META NAME="Generator" CONTENT="MS Exchange Server version 6.0.6487.1">
<TITLE>Add root Element to List</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/rtf format -->
<BR>

<P><FONT SIZE=2 FACE="Arial">Hi, </FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;I am somewhat new to Jdom and have the
following Question sorry if it's a basic one.&nbsp; I'm using Xpath to extract
a repeating group of elements from an XML document and storing them in a List.
&nbsp; ( This work's great )</FONT></P>

<P><FONT SIZE=2 FACE="Arial">What would be the best way to add a root element
to the List so that I can write out a valid XML document to the file system?
&nbsp; Any help would be much appreciated.</FONT></P>

<P><FONT SIZE=2 FACE="Arial">Thanks,</FONT>

<BR><FONT SIZE=2 FACE="Arial">&nbsp;Andrew</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp; try{</FONT>

<BR><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; String filename =
&quot;C:/SearchGeo/XML/test.xml&quot;;</FONT>

<BR><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; String teststring
= &quot;ALKALINITY&quot;;</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SAXBuilder builder
= new SAXBuilder();</FONT>

<BR><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Document doc =
builder.build(new File(filename));</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; XPath dataPath =
XPath.newInstance(&quot;/Searchresult/metadata[descendant::enttypl='&quot;
+teststring+&quot;']&quot;);</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp; dataPath.</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; List results =
dataPath.selectNodes(doc);</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /*&nbsp; Add root
element&nbsp;&nbsp; */</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp; System.out.println(&quot
;Results Found &quot;+ results.size() +&quot; metadata record&quot;);</FONT>
</P>

<P><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp; XMLOutputter Xout = new
XMLOutputter();</FONT>

<BR><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp; Xout.setEncoding(&quot;ISO
-8859-1&quot;);</FONT>

<BR><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp; Xout.output(results ,System
.out);</FONT>

<BR><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp; }</FONT>

<BR><FONT SIZE=2 FACE="Arial">&nbsp;&nbsp;&nbsp; catch(JDOMException E){E
.printStackTrace();}</FONT>
</P>

</BODY>
</HTML>

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