What does (say) mean in this Java method?Since Mapper and Reducer are separate classes, the type parameters have different scopes, and the actual type argument of KEYIN (say) in the Mapper may be different from the type of the type parameter of the same name (KEYIN) in the Reducer.  For instance, in the maximum temperature example from earlier chapters, KEYIN in replaced by longWritaeble for the Mapper and by Text for the Reducer.From Hadoop The Definitive Guide, by Tom White, page 224 (scanned version of the page at 223 and 224).
What does (say) mean in this Java method in Hadoop The Definitive Guide?
java
I read that (say) in this case as 'for example', i.e. type parameter of the others could also vary between the Mapper and the Reducer.So, I'm parsing it to mean that KEYIN, KEYOUT, VALUEIN, VALUEOUT could each have different type arguments in the Reducer as compared to their corresponding Mapper arg types.