Cool. That works. Just couple quick questions to confirm: All the Keys returned by this code are guaranteed to be in order by the key values, correct?
Also, for some other table I am retrieving all column names for a particular key, and those all seem to be in the correct order as well. Is this always guaranteed? On Tue, Jan 12, 2010 at 11:12 AM, stack <[email protected]> wrote: > Setup the scanner and next it as you did previous. Then on the Result > object, do something like: > > for (KeyValue kv: result.raw()) { > System.out.println(Bytes.toString(kv.getRow()) + " " + > Bytes.toString(kv.getValue())); > } > > St.Ack > > On Tue, Jan 12, 2010 at 10:24 AM, Something Something < > [email protected]> wrote: > > > Sorry. That was a typo. In any case, it seems like I am using the wrong > > API. > > > > Here's what my table contains: > > > > > > ABC_111 column=info:estimate, > timestamp=1263319888463, > > value=179.59 > > ABC_222 column=info:estimate, > timestamp=1263319888463, > > value=191.50 > > ABC_333 column=info:estimate, > timestamp=1263319888463, > > value=180.65 > > ABC_444 column=info:estimate, > timestamp=1263319888463, > > value=183.63 > > & so on.... > > > > > > I want to retrieve: > > > > ABC_111 179.59 > > ABC_222 191.50 > > ABC_333 180.65 > > ABC_444 183.63 > > & so on... > > > > What API should I use? Please let me know. Thanks for your help. > > > > > > On Tue, Jan 12, 2010 at 9:36 AM, stack <[email protected]> wrote: > > > > > See below: > > > > > > On Tue, Jan 12, 2010 at 9:12 AM, Something Something < > > > [email protected]> wrote: > > > > > > > > NavigableMap<byte[], NavigableMap<byte[], > NavigableMap<Long, > > > > byte[]>>> map = result.getMap(); > > > > > > > > > > Above returns a map keyed by families: > > > > > > > > > http://hadoop.apache.org/hbase/docs/current/api/org/apache/hadoop/hbase/client/Result.html#getMap%28%29 > > > > > > > > > > > > > > > > for (Map.Entry<byte[], NavigableMap<byte[], > > NavigableMap<Long, > > > > byte[]>>> entry : map.entrySet()) { > > > > byte[] key = entry.getKey(); > > > > > > > > > > This is family name, not key. > > > > > > > > > > > > > *LOG.info("key = " + Bytes.toString(key));* > > > > NavigableMap<byte[], NavigableMap<Long, byte[]>> value = > > > > entry.getValue(); > > > > > > > > > > This is a map keyed by column qualifiers. > > > > > > > > > > > > > for (Entry<byte[], NavigableMap<Long, byte[]>> entry1 : > > > > value.entrySet()) { > > > > byte[] key1 = entry1.getKey(); > > > > *LOG.info("key1 = " + Bytes.toString(key1));* > > > > > > > > > > > > > This is the family qualifier. > > > > > > > > > > > > > NavigableMap<byte[], NavigableMap<Long, byte[]>> > > value1 > > > = > > > > entry.getValue(); > > > > > > > > > > > > > I do not think you intended to do this. I think you meant entry1, not > > > 'entry' and map type should be NavigableMap<Long, byte[]> rather than > > > above. > > > > > > St.Ack > > > > > > > > > > > > > for (Entry<byte[], NavigableMap<Long, byte[]>> > entry2 > > : > > > > value1.entrySet()) { > > > > String key2 = Bytes.toString(entry2.getKey()); > > > > *LOG.info("key2 = " + key2);* > > > > > > > > } > > > > } > > > > } > > > > } > > > > > > > > > >
