How to access collection of vSphere types using string parameter in PropertyRequest.newInstance()

I need to access VirtualMachine parameter from HostSystem  Managed Object using PropertyRequest:


i.e. dispatchEvent(PropertyRequest.newInstance(hostRef, "<span style="color: rgb(255, 0, 0);">vm[0].summary.config.name</span>"));  .. is that possible .. or what to use instead ?

regards,


Plamen