Thank you, Ted. I see. What is a good example of reading HBase from a MR job?
On Wed, Jan 26, 2011 at 11:35 PM, Ted Yu <[email protected]> wrote: > Just replace 'NavigableMap>>' with: > > NavigableMap<byte[], NavigableMap<byte[], NavigableMap<Long, byte[]>>> > > Take a look at the source code in Result.java > > On Wed, Jan 26, 2011 at 9:26 PM, Mark Kerzner <[email protected]> > wrote: > > > Sure. At this line > > > > NavigableMap>> map = > > value > > .getMap(); > > > > I get this: > > > > cannot find symbol > > symbol: variable NavigableMap > > location: class com.mypackage.hadoop.HBaseUniqueVisitsMapper > > > > cannot find symbol > > symbol: variable map > > location: class com.mypackage.hadoop.HBaseUniqueVisitsMapper > > > > unexpected type > > required: variable > > found: value > > > > On Wed, Jan 26, 2011 at 11:20 PM, Ted Yu <[email protected]> wrote: > > > > > This is not new Java construct. > > > > > > Can you show us the compilation error ? > > > > > > On Wed, Jan 26, 2011 at 9:10 PM, Mark Kerzner <[email protected]> > > > wrote: > > > > > > > Hi, I found this construct on the blog here, > > > > http://allaboutdata.net/blog/?p=38, and I have no idea what it > means. > > > But > > > > the documentation supports this and says > > > > > > > > getMap > > > > > > > > public > > > NavigableMap<byte[],NavigableMap<byte[],NavigableMap<Long,byte[]>>> > > > > getMap() > > > > Map of families to all versions of its qualifiers and values. > > > > Returns a three level Map of the form: Map>> > > > > > > > > this one, here, > > > > > > > > > > > > > > http://hbase.apache.org/docs/r0.20.5/api/org/apache/hadoop/hbase/client/Result.html#getMap() > < > http://hbase.apache.org/docs/r0.20.5/api/org/apache/hadoop/hbase/client/Result.html#getMap%28%29 > > > > > < > > > > > > http://hbase.apache.org/docs/r0.20.5/api/org/apache/hadoop/hbase/client/Result.html#getMap%28%29 > > > > > > > > > > > > It does NOT compile for me :) > > > > > > > > Thank you. > > > > > > > > > >
