MapWritable- http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/io/MapWritable.html
On Mon, Jul 13, 2009 at 9:40 AM, Rares Vernica <[email protected]> wrote: > On Mon, Jul 13, 2009 at 8:57 AM, Rares Vernica<[email protected]> wrote: > > > > I would like to pass a hash map trough map/reduce functions. Does > > anybody know a HashMap implementation that is Writable? > > I found the answer. I can put the HashMap in a > org.apache.pig.data.Tuple (DefaultTuple to be more exact) and the > tuple writer method knows how to write a Map (including a HashMap). > > Cheers, > Rares >
