@ManagedAttribute
    public void setEnabled(boolean enabled) {
        this.enabled = enabled;
    }
Simple aspect that monitors call count and call invocation time. It uses JMX annotations and therefore can be
monitored using any JMX console such as the jConsole
<p/>
This is only useful if you use JPA or JDBC.  Spring-data-jpa doesn't have any correctly annotated classes to join on

@author Rob Harrop
@author Juergen Hoeller
@author Michael Isvy
@since 2.5
src/main/java/org/springframework/samples/petclinic/util/CallMonitoringAspect.java