SMX4-638: Add example to servicemix-saxon documentation (thanks to iocanel)

git-svn-id: 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/webapp/jbi/components/servicemix-saxon.conf b/src/main/webapp/jbi/components/servicemix-saxon.conf
index 5f8d296..04b2826 100644
--- a/src/main/webapp/jbi/components/servicemix-saxon.conf
+++ b/src/main/webapp/jbi/components/servicemix-saxon.conf
@@ -49,11 +49,33 @@
 h4. Using properties and parameters
 All properties defined on the JBI exchange and input JBI message will be available for use inside the XSLT stylesheet as parameters.
 In addition to those properties and the one specified in the {{parameters}} property on the endpoint, the following objects are also available:
 * {{exchange}} : the JBI exchange
 * {{in}} : the input JBI NormalizedMessage
 * {{component}} : the XsltEndpoint instance being called
+Below is an example that demonstrates how the properties of the exchange and normalized message can be accessed from inside the xslt.
+<?xml version="1.0" encoding="windows-1253"?>
+<xsl:stylesheet xmlns:xsl="" version="2.0"
+                xmlns:class=""
+                xmlns:me="java:javax.jbi.messaging.MessageExchange"
+                xmlns:nm="java:javax.jbi.messaging.NormalizedMessage">
+    <xsl:output method="xml" indent="yes" encoding="ISO-8859-1"/>
+    <xsl:param name="exchange" as="class:javax.jbi.messaging.MessageExchange"/>
+    <xsl:param name="in" as="class:javax.jbi.messaging.NormalizedMessage"/>
+    <xsl:template match="/">
+    <message>
+        <!-- The value of messageId will be read from thr property MSG_ID of the "in" NormalizedMessage -->
+        <messageId>
+            <xsl:value-of select="nm:getProperty($in, 'MSG_ID')"/>
+        </messageId>
+    </message>
 All those parameters can be accessed using XSLT standard ways using {{<xsl:param/>}}.
 h3. Endpoint {{saxon:proxy}}