Spring in the Enterprise - Spring Enterprise Recipes: A Problem Solution Approach - page 260

<value>replicate</value>
</list>
</property>
</bean>
</beans>

Another MBean assembler is InterfaceBasedMBeanInfoAssembler , which exports all methods
defined in the interfaces you specified.

<bean id="assembler" class="org.springframework.jmx.export.assembler. ➥
InterfaceBasedMBeanInfoAssembler">
<property name="managedInterfaces">
<list>
<value>com.apress.springenterpriserecipes.replicator. ➥

FileReplicator</value>
</list>
</property>
</bean>

Spring also provides MetadataMBeanInfoAssembler to assemble an MBean's management interface
based on the metadata in the bean class. It supports two types of metadata: JDK annotations and
Apache Commons Attributes (behind the scenes, this is accomplished using a strategy interface
JmxAttributeSource ). For a bean class annotated with JDK annotations, you specify an
AnnotationJmxAttributeSource instance as the attribute source of MetadataMBeanInfoAssembler .

<bean id="assembler" class="org.springframework.jmx.export.assembler.

➥

MetadataMBeanInfoAssembler">
<property name="attributeSource">
<bean class="org.springframework.jmx.export.annotation. ➥

AnnotationJmxAttributeSource" />
</property>
</bean>

Then you annotate your bean class and methods with the annotations @ManagedResource ,
@ManagedAttribute , and @ManagedOperation for MetadataMBeanInfoAssembler to assemble the
management interface for this bean. The annotations are easily interpreted. They expose the element
that they annotate. If you have a JavaBeans-compliant property, JMX will use the term attribute . Classes
themselves are referred to as resources . In JMX, methods will be called operations . Knowing that, it's easy
to see what the following code does:

package com.apress.springenterpriserecipes.replicator;
...
import org.springframework.jmx.export.annotation.ManagedAttribute;
import org.springframework.jmx.export.annotation.ManagedOperation;
import org.springframework.jmx.export.annotation.ManagedResource;

@ManagedResource(description = "File replicator")
public class FileReplicatorImpl implements FileReplicator {
...
@ManagedAttribute(description = "Get source directory")
public String getSrcDir() {
...
}