Whenever there is a need to re-read the contents of the
file specified by cvDnisMappingUrl, this object can be
set to refresh(2). This will cause the contents of the
file to be re-read and correspondingly update the
cvDnisNodeTable. After the completion of this operation,
the value of this object is reset to idle(1). The only
operation allowed on this object is setting it to
refresh(2). This can only be done when the current value
is idle(1) and the rowstatus is active(1).
idle - The refreshing process is idle and the user
can modify this object to refresh.
refresh - The refreshing process is currently busy and
the user have to wait till the object
becomes idle to issue new refresh.