An object implementing this interface is passed to an ActionHandler
as the action parameter when loopUntilSettled is true and state has
changed. This object has no useful information - the only property id is
always null. Handlers must use the current state to determine if they have
any work to do.
An object implementing this interface is passed to an ActionHandler as the
actionparameter whenloopUntilSettledis true and state has changed. This object has no useful information - the only propertyidis always null. Handlers must use the current state to determine if they have any work to do.