java - Emit a List From Mapper -


I am trying to emit a list from Mapper. list & lt; String & gt; MapFinalList = New Array's & lt; String & gt; ();

Is there a way to leave a list or should I make custom writable for my list?

Please suggest.

UPDATE

I tried to use it the Arrayable

  Public static class ListWritable Array {public list ) class); }} List configuration pass list = new listable (); Arrayable [] data = new derivative [dummy. Size ()]; (Int k = 0; k & lt; dummy.size (); k ++) {data [k] = new derivative (dummy to arrays (new string [dummy () ())); } PassList.set (data); Context.write (new text (""), passList);   

but showing the output as

  pck.Driver$ListWritable@75e287e5   

string in a single shot, I will not apply a loop to the mapper, and every string Get out

Comments

Popular posts from this blog

c - Mpirun hangs when mpi send and recieve is put in a loop -

python - Apply coupon to a customer's subscription based on non-stripe related actions on the site -

java - Unable to get JDBC connection in Spring application to MySQL -