XOM API for Processing XML with Java

["Jacobs, Robert A." <ra.jacobs AT ngc.com>]

>> I thought I followed the guidance in "XML in a Nutshell" 
>> fairly well, but 
>> perhaps I didn't.  Here are some fragments from my XMLSchema-instance 
>> document and my XMLSchema document.  Anything stand out as erroneous?

> No, but you haven't shown us any stylesheet code.

Here you go:

--------------------- code -----------------------

<?xml version="1.0" ?>
<xsl:stylesheet version="1.0" 
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>

    <!-- CONFIGURATION -->
    <xsl:output method="html" />
    
    <!-- GLOBAL VARIABLES --> 
    <xsl:key name="task.id" match="task" use="@id" />
    <xsl:param name="selected.task.id"> </xsl:param>
    <xsl:param name="selected.mode"> </xsl:param>

    <!-- TEMPLATES -->

    <!-- The "driver".  Based upon the submitted parameters, the driver 
         directs the Transformer to the appropriate processing template -->
    <xsl:template match="/">
        <xsl:choose>
            <xsl:when test="$selected.mode = 'task_list'">
                <xsl:apply-templates select="//task[@id = $selected.task.id]" 
mode="task_list" />
            </xsl:when>
            <xsl:when test="$selected.mode = 'task_desc'">
                <xsl:apply-templates select="//task[@id = $selected.task.id]" 
mode="task_desc" />
            </xsl:when>
        </xsl:choose>
    </xsl:template>

    <!-- This template is used to build a list of task titles based upon the 
ID
        of a discrete- or meta-task selected either from the search results 
or from
        an existing list of tasks. 
    -->
    <xsl:template match="task" mode="task_list">
        <xsl:choose>
            
            <xsl:when test="@task_type='meta'">
                <xsl:value-of select="title"/><br/>
                <ol>
                <xsl:for-each select="node()">
                    <!-- DEBUG: Looking at: <xsl:value-of 
select="local-name()" /> -->
                    <xsl:choose>

                        <xsl:when test="local-name() = 'option'">
                            <li>Select one of the following:<br/>
                            <ul>
                            <xsl:for-each select="current()/step">
                                <xsl:variable name="step_idref" 
select="current()" />
                                <li>
                                    <a><xsl:attribute name="href">
                                            
<xsl:text>javascript:get_explanation('</xsl:text>
                                            <xsl:value-of 
select="$step_idref" />
                                            <xsl:text>');</xsl:text>
                                      </xsl:attribute>
                                      <xsl:value-of 
select="//task[@id=$step_idref]/title"/>
                                    </a>
                                </li>
                            </xsl:for-each>
                            </ul>
                            </li>
                        </xsl:when>
                        
                        <xsl:when test="local-name() = 'step'">
                            <xsl:variable name="step_idref" 
select="current()" />
                            <li>
                                <a><xsl:attribute name="href">
                                        
<xsl:text>javascript:get_explanation('</xsl:text>
                                        <xsl:value-of select="$step_idref" />
                                        <xsl:text>');</xsl:text>
                                  </xsl:attribute>
                                  <xsl:value-of 
select="//task[@id=$step_idref]/title"/>
                                </a>
                            </li>
                        </xsl:when>
                    </xsl:choose>
                </xsl:for-each>
                </ol>
            </xsl:when>

            <xsl:when test="@task_type='discrete'">
                <a><xsl:attribute name="href">
                        <xsl:text>javascript:get_explanation('</xsl:text>
                        <xsl:value-of select='@id' />
                        <xsl:text>');</xsl:text>
                   </xsl:attribute>
                   <xsl:value-of select="title"/>
                </a>
            </xsl:when>

        </xsl:choose>
    </xsl:template>


    <!-- This template is used to retrieve the contents of the <task_text> 
         element of the <task> with the @id that matches the value provided in
         the $selected.task.id param. The contents of a single <task_text> 
         element should be returned.
    -->
    <xsl:template match="task" mode="task_desc">
        <xsl:value-of select="task_text" />
    </xsl:template>

</xsl:stylesheet>