On Tue, 2004-10-19 at 12:24, Federico Sacerdoti wrote: > On Oct 19, 2004, at 12:07 PM, Matt Massie wrote: > > > /Country=China/group=/ > > > > i should get a list of all metric groups attached to China... but those > > groups are siblings of "group=" and not children. for example, > > > > /Country=China/group=cpu/ > > /Country=China/group=load/ > > /Country=China/group=memory/ > > /Country=China/group=disk/ > > > > are all siblings.. not children. > > I still dont see the problem. I would expect the operation "find all > siblings" of a node would be a primitive in the system. This is not > hard in a tree structure.
i could write in special case in the in-memory filesystem that says if
the name of the directory ends in '=' then list all siblings that start
with the same string preceding the '=' (e.g. group). that is true. how
in the world would you implement that in a UNIX filesystem though. it's
not possible. i don't want the in-memory filesystem to act any
differently than a traditional unix filesystem.
if we put the directories "group=cpu", "group=memory", "group=disk"
inside of the "group=" directory, then we are in agreement (sort of).
you are just asking to put the delimiter last (in this case '=').
would your layout have
/Country=China/group=/
+------ ./group=cpu/
|
+------ ./group=disk/
?
it's understood that things in the "group=" or ".group" directory are
all just groups so you only need...
/Country=/China/group=/cpu
in this end this might look better.
/country=/China/province=/Hunan/group=/cpu/metric=/number
however, we still need to be able to delimit outer from innner space
/country=/China/province=/Hunan/.group/cpu/.metric/number
-matt
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