Bug 120036 Preview of XML attributes is not working
The XML attribute values are not working in the current BIRT XML ODA driver. Only 'text'-type XML elements' values are displayable in Preview. ColumnMapping XPath expressions like "@attributeName" are broken in Preview. I'll attach document showing the problem and sample XML/XSD data
data/org.eclipse.birt.report.data.oda.xml/src/org/eclipse/birt/report/data/oda/xml/util/RelationInformation.java
* @return
	 */
	public String[] getNestXMLColumnNames( )
	{
		ArrayList temp = new ArrayList();
		String[] columnNames = getColumnNames();
		for(int i = 0; i < columnNames.length; i++)
		{
			if(!((ColumnInfo)columnInfos.get(columnNames[i])).getColumnPath().startsWith(rootPath))
			{
				temp.add( columnNames[i]);
			}
		}
		String[] result = new String[temp.size()];
		for(int i = 0; i < result.length; i ++)
		{
			result[i] = temp.get(i).toString();
		}
		return result;
	}
	
	/**
	 * Return the root path of that table.
	 * 
	 * @return
	 */
	public String getRootPath( )
	{
		return this.rootPath;
	}