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<?xml version="1.0"?>
<!DOCTYPE document [
<!ENTITY project SYSTEM "project.xml">
]>
<document url="mbean-descriptor-howto.html">
&project;
<properties>
<author email="amyroh@apache.org">Amy Roh</author>
<title>MBean Descriptor How To</title>
</properties>
<body>
<section name="Introduction">
<p>Tomcat 5 uses JMX MBeans as the technology for implementing
manageability of Tomcat.</p>
<p>The descriptions of JMX MBeans for Catalina are in the
org.apache.catalina.mbeans.mbeans-descriptor.xml file.</p>
<p>You will need to add MBean descriptions for your custom components
in order to avoid a "ManagedBean is not found" exception.</p>
</section>
<section name="Including your own mbean-descriptor files">
<p>You may configure custom components (e.g. Valves/Realms) by including
your own mbean-descriptor file(s), and setting the "descriptors"
attribute to point to a ';' separated list of paths (in the ClassLoader sense)
of files to add to the default list under ServerLifecycleListener definition
in server.xml.</p>
<source>
&lt;Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
debug="0"
descriptors="/com/myfirm/mypackage/mbean-descriptor.xml"/&gt;
</source>
</section>
<section name="Adding MBean description to Catalina's mbean-descriptors.xml">
<p>You may also add MBean descriptions for custom components in
org.apache.catalina.mbeans.mbeans-descriptor.xml file.</p>
<source>
&lt;mbean name="LDAPRealm"
className="org.apache.catalina.mbeans.ClassNameMBean"
description="Custom LDAPRealm"
domain="Catalina"
group="Realm"
type="com.myfirm.mypackage.LDAPRealm"&gt;
&lt;attribute name="className"
description="Fully qualified class name of the managed object"
type="java.lang.String"
writeable="false"/&gt;
&lt;attribute name="debug"
description="The debugging detail level for this component"
type="int"/&gt;
.
.
.
&lt;/mbean&gt;
</source>
</section>
</body>
</document>