| SAXONICA |
A specimen stylesheet that uses these XSL extension is books-sql.xsl. This loads the contents of the books.xml file into a database table, To use it, you need to create a database database containing a table "Book" with three character columns, "Title", "Author", and "Category"
Here is the stylesheet:
<xsl:stylesheet
xmlns:sql="java:/net.sf.saxon.sql.SQLElementFactory"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"
xmlns:saxon="http://saxon.sf.net/"
extension-element-prefixes="saxon sql">
<!-- insert your database details here, or supply them in parameters -->
<xsl:param name="driver" select="'sun.jdbc.odbc.JdbcOdbcDriver'"/>
<xsl:param name="database" select="'jdbc:odbc:test'"/>
<xsl:param name="user"/>
<xsl:param name="password"/>
<!-- This stylesheet writes the book list to a SQL database -->
<xsl:variable name="count" select="0" saxon:assignable="yes"/>
<xsl:output method="xml" indent="yes"/>
<xsl:template match="BOOKLIST">
<xsl:if test="not(element-available('sql:connect'))">
<xsl:message>sql:connect is not available</xsl:message>
</xsl:if>
<xsl:message>Connecting to <xsl:value-of select="$database"/>...</xsl:message>
<xsl:variable name="connection"
as="java:java.sql.Connection" xmlns:java="http://saxon.sf.net/java-type">
<sql:connect driver="{$driver}" database="{$database}"
user="{$user}" password="{$password}">
<xsl:fallback>
<xsl:message terminate="yes">SQL extensions are not installed</xsl:message>
</xsl:fallback>
</sql:connect>
</xsl:variable>
<xsl:message>Connected...</xsl:message>
<xsl:apply-templates select="BOOKS">
<xsl:with-param name="connection" select="$connection"/>
</xsl:apply-templates>
<xsl:message>Inserted <xsl:value-of select="$count"/> records.</xsl:message>
<xsl:variable name="book-table">
<sql:query connection="$connection" table="book" column="*" row-tag="book" column-tag="col"/>
</xsl:variable>
<xsl:message>There are now <xsl:value-of select="count($book-table//book)"/> books.</xsl:message>
<new-book-table>
<xsl:copy-of select="$book-table"/>
</new-book-table>
<sql:close connection="$connection"/>
</xsl:template>
<xsl:template match="BOOKS">
<xsl:param name="connection"/>
<xsl:for-each select="ITEM">
<sql:insert connection="$connection" table="book">
<sql:column name="title" select="TITLE"/>
<sql:column name="author" select="AUTHOR"/>
<sql:column name="category" select="@CAT"/>
</sql:insert>
<saxon:assign name="count" select="$count+1"/>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
To run this stylesheet you will need to do the following:
Create a database (e.g. Microsoft Access) containing a table "Book" with three character columns, "Title", "Author", and "Category".
Register this database as a JDBC data source. (If you use Microsoft Access, register it as an ODBC data source called, say, Books, and then it will automatically be available under JDBC as "jdbc:odbc:Books".
Modify the <sql:connect> element in the stylesheet to specify the correct JDBC connection
name for the database, and if necessary to supply a username and password. Alternatively you can
supply the driver class, database name, username, and password as parameters on the command line.
Execute the stylesheet from the command line, as follows:
java net.sf.saxon.Transform data\books.xml books-sql.xsl
The database will be populated with data from the books.xml document.