A writableComparable is an interface. A key in mapreduce needs to implement it, since the keys need to be compared for equality. So it has nothing to do with key value pairs as such.
Regards, Dieter 2013/11/4 unmesha sreeveni <[email protected]> > > what is CompateTo() in WritableComparable? > Is that comparing a key and value or comparing key and key,value and value > > -- > *Thanks & Regards* > > Unmesha Sreeveni U.B > > *Junior Developer* > > *Amrita Center For Cyber Security * > > > * Amritapuri.www.amrita.edu/cyber/ <http://www.amrita.edu/cyber/>* >
