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From Something Something <mailinglist...@gmail.com>
Subject Re: Reading table sequentially...
Date Tue, 12 Jan 2010 18:24:53 GMT
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 <stack@duboce.net> wrote:

> See below:
>
> On Tue, Jan 12, 2010 at 9:12 AM, Something Something <
> mailinglists19@gmail.com> 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);*
> >
> >                  }
> >              }
> >            }
> >        }
> >
>

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