Download Java And XSLT

This template first produces a <tr> element. If this particular element has a required="true"
attribute, the XML data contains <requiredFieldsMissing/>. The value of this element is an
empty string, the font is changed to bold and red. This indicates to the user that a required field
was missing. The font weight and color are inserted as the style attribute on the <tr> element
as follows:
<tr>
<xsl:if test="@required='true'
and ../../requiredFieldsMissing
and .=''">
<xsl:attribute name="style">
<xsl:text>color:red; font-weight:bold;</xsl:text>
</xsl:attribute>
</xsl:if>
The template then produces its first <td> tag, which contains the caption for the current field. It
would be nice if XSLT offered a lookup table mechanism for situations such as this, but
<xsl:choose> does get the job done:
<td>
<xsl:choose>
<xsl:when test="name( )='firstName'">
First Name:</xsl:when>
<xsl:when test="name( )='lastName'">
Last Name:</xsl:when>
<xsl:when test="name( )='daytimePhone'">
Daytime Phone:</xsl:when>
<xsl:when test="name( )='eveningPhone'">
Evening Phone:</xsl:when>
<xsl:when test="name( )='email'">
Email:</xsl:when>
</xsl:choose>
</td>
This is still better than hardcoding the captions into the XML or servlet because we can make
changes to the stylesheet without recompiling anything. You can even change the captions to a
foreign language without affecting any of the Java code, offering remarkable flexibility to web
page designers.
Design Choices
The two stylesheets, editPersonalData.xslt and
confirmPersonalData.xslt, had a lot in common. To keep things simple,
they were written as two independent stylesheets. This is not the only
way to implement this code, however. For instance, we cou ld have
searched for common functionality and included that functionality from
both stylesheets using <xsl:import> or <xsl:include>. This
approach did not work here because, although the stylesheets were
structured similarly, each template produced different output. As the web
site gets more sophisticated, however, you will begin to encounter
common page elements such as navigation bars that should not be
duplicated in multiple places.
Another approach would be to combine both stylesheets into a single
stylesheet and pass a top-level parameter indicating whether to use