I've created a couple of mapreduce mappers that successfully run. Now,
I wanted to use my existing classes (DAOs and Managers) from within
these mappers. I developed them for my existing GAE application (that
the mapreduce mappers are part of now). I use Guice in my GAE
application successfully. So how would I plug mapreduce mappers with
Guice DI - so far I have not succeeded with that?
So far I've got this going:
I do use Guice Servlet and I have defined
serve("/mapreduce/*").with(MyMapReduceServlet.class);
in MyServletModule along with my other servlets. mapreduce servlet is
defined:
@Singleton
public class MyMapReduceServlet extends MapReduceServlet {
All of them work including mapreduce servlet. But when I launch
mapreduce job I get NPE on injected property:
@Inject
private WineDAO wineDAO;
@Inject // not sure this is needed...
public DeleteAllMapper() {
super();
}
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