but that taking up more memory... On Monday, April 23, 2018 at 2:07:42 PM UTC+8, Thomas Mueller Graf wrote: > > Hi, > > What about adding a second map with a counter as a key, and the key as the > value. So there are two maps: > > map 1: key: counter; value: your key > map 2: key: your key; value: your value plus the counter from map 1 > > Regards, > Thomas > > > On Sun, Apr 22, 2018 at 8:46 PM, ivan <[email protected] <javascript:> > > wrote: > >> oh? that great! do you have any sample? Thanks >> >> I found this but can't really understand how this work : >> >> MVRTreeMap<String> r = s.openMap("data", >> new MVRTreeMap.Builder<String>()); >> >> // add two key-value pairs >> // the first value is the key id (to make the key unique) >> // then the min x, max x, min y, max y >> r.add(new SpatialKey(0, -3f, -2f, 2f, 3f), "left"); >> r.add(new SpatialKey(1, 3f, 4f, 4f, 5f), "right"); >> >> // iterate over the intersecting keys >> Iterator<SpatialKey> it = >> r.findIntersectingKeys(new SpatialKey(0, 0f, 9f, 3f, 6f)); >> for (SpatialKey k; it.hasNext();) { >> k = it.next(); >> System.out.println(k + ": " + r.get(k)); >> } >> s.close(); >> >> On Saturday, April 21, 2018 at 7:34:10 PM UTC+8, Noel Grandin wrote: >>> >>> you can use ceiingKey(K) to match on the first part of the search key. >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "H2 Database" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/h2-database. >> For more options, visit https://groups.google.com/d/optout. >> > >
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