Nope, I was write the first time; they're invariant. I forgot the @Override annotation.
Also, you can apparently create an inner class by saying MyObj.InnerClass ic = myObj.new InnerClass(args); This doesn't really get us very far though, without reflection. -- David On Wed, Jul 22, 2009 at 2:25 PM, David Hall<[email protected]> wrote: > Oops, they are contravariant. Ok, so my proposed best practice is to > make Mapper's take a MapContext and not a Mapper.Context, and I'll > cook up a DummyContext real fast. > > -- David > > On Wed, Jul 22, 2009 at 2:22 PM, David Hall<[email protected]> wrote: >> Mapper.Context extends MapContext. The interfaces takes >> Mapper.Context, and IIRC method arguments aren't contravariant in >> Java. >> >> -- David >> >> On Wed, Jul 22, 2009 at 2:20 PM, Ted Dunning<[email protected]> wrote: >>> Got it. >>> >>> Sorry to be dense. >>> >>> Is it really necessary to abuse reflection? What about this: >>> >>> http://hadoop.apache.org/common/docs/r0.20.0/api/org/apache/hadoop/mapreduce/MapContext.html >>> >>> ? >>> >>> On Wed, Jul 22, 2009 at 2:15 PM, David Hall <[email protected]> wrote: >>> >>>> There is no obvious analog to a dummyCollector, precisely because >>>> Context is a *non-static* class. >>>> >>> >>> >>> >>> -- >>> Ted Dunning, CTO >>> DeepDyve >>> >> >
