XOM API for Processing XML with Java

["Calum MacLean" <cnmaclean AT hotmail.com>]

Hi

I've just starting using XOM, and so far it looks excellent.

I want to ask about the custom Nodes and Elements classes, and generics.
I can understand the reasoning behind choosing to use custom classes, given 
that pre-Java 5.0 didn't have generics.

Given that Java 5.0 has been out for a while now, are there any plans to 
rectify this situation and to use List<Element>, List<Node> etc. instead?

I understand that there's a issue with still supporting pre-Java 5.0 users 
(I'm guessing this probably constitutes the majority of users).  But are 
there any plans to support Java 5.0 users in a more standard way?

Thanks,
Calum
>From forslund AT mail.com  Wed Jan  4 11:50:14 2006
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Subject: [XOM-interest] XOM 1.1 Parse question
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I'm trying to parse the an XML file with XOM1.1 whose first few lines 
are attached below.   I get the following error:

getCurrentContainer: codeSystems being initialized
nu.xom.ParsingException: Illegal path character
       at nu.xom.Builder.build(Builder.java:1146)
       at nu.xom.Builder.build(Builder.java:586)
       at org.openemed.CTS.LexGridMgr.readFile(Unknown Source)
       at org.openemed.CTS.BrowserImpl.<init>(Unknown Source)
       at org.openemed.CTS.TestBrowser.main(Unknown Source)
Caused by: nu.xom.MalformedURIException: Illegal path character
       at nu.xom.Verifier.throwMalformedURIException(Verifier.java:161)
       at nu.xom.Verifier.checkPath(Verifier.java:416)
       at nu.xom.Verifier.checkAbsoluteURIReference(Verifier.java:907)
       at nu.xom.Element.addNamespaceDeclaration(Element.java:1164)
       at 
nu.xom.NonVerifyingHandler.startElement(NonVerifyingHandler.java:103)
       at 
org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
       at 
org.apache.xerces.impl.XMLNamespaceBinder.handleStartElement(Unknown 
Source)
       at org.apache.xerces.impl.XMLNamespaceBinder.startElement(Unknown 
Source)
       at 
org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(Unknown Source)
       at 
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown
 
Source)
       at 
org.apache.xerces.impl.XMLDocumentScannerImpl$ContentDispatcher.scanRootElementHook(Unknown
 
Source)
       at 
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
 
Source)
       at 
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown 
Source)
       at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
       at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
       at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
       at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
       at nu.xom.Builder.build(Builder.java:1127)
       ... 4 more

If I remove the
xmlns:schemaLocation="http://LexGrid.org/schema/2005/01/LexGrid/codingSchemes 
http://LexGrid.org/schema/2005/01/LexGrid/codingSchemes.xsd";

namespace declaration it parses correctly.

I believe the file is using the schemaLocation correctly based on: 
http://www.w3.org/TR/xmlschema-0/#schemaLocation

Am I understanding this correctly and XOM is wrong or not?

Thanks,

Dave Forslund

-------

<?xml version="1.0" encoding="UTF-8"?>
<!--
    This file was created using LexGrid.  You can find out more about LexGrid 
at http://informatics.mayo.edu/ .
    Generated at: 12/9/05 7:09 AM
    Generated by: org.LexGrid.commons.model.emf, v0.6.0
-->
<codingScheme xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xmlns:schemaLocation="http://LexGrid.org/schema/2005/01/LexGrid/codingSchemes 
http://LexGrid.org/schema/2005/01/LexGrid/codingSchemes.xsd"; 
xmlns="http://LexGrid.org/schema/2005/01/LexGrid/codingSchemes"; 
xmlns:lgBuiltin="http://LexGrid.org/schema/2005/01/LexGrid/builtins"; 
xmlns:lgCommon="http://LexGrid.org/schema/2005/01/LexGrid/commonTypes"; 
xmlns:lgCon="http://LexGrid.org/schema/2005/01/LexGrid/concepts"; 
xmlns:lgCS="http://LexGrid.org/schema/2005/01/LexGrid/codingSchemes"; 
xmlns:lgLDAP="http://LexGrid.org/schema/2005/01/LexGrid/ldap"; 
xmlns:lgNaming="http://LexGrid.org/schema/2005/01/LexGrid/naming"; 
xmlns:lgRel="http://LexGrid.org/schema/2005/01/LexGrid/relations"; 
xmlns:lgService="http://LexGrid.org/schema/2005/01/LexGrid/service"; 
xmlns:lgVD="http://LexGrid.org/schema/2005/01/LexGrid/valueDomains"; 
xmlns:lgVer="http://LexGrid.org/schema/2005/01/LexGrid/versions"; 
approxNumConcepts="55" codingScheme="beer" defaultLanguage="en" 
formalName="beer" 
registeredName="localName=1.9.102,ne=1.3.6.1.4.1.2114.108,ra=ISO" 
representsVersion="0.1" xsi:noNamespaceSchemaLocation="lexgrid.xsd">
  <lgCommon:entityDescription>An ontology that models types of beer and 
brewers/brands.</lgCommon:entityDescription>

....