A few days ago, I posted here about a limitation in the LookupService API. I had some time today and wrote a patch that addresses it. I tried it out with the MongoDBLookupService using a String/Integer mapping, and it worked. Here's the PR if someone would like to review:
https://github.com/apache/nifi/pull/2304 Unless I'm mistaken, if the API isn't changed here it could really cripple some of the potential implementations of LookupService. (The PR touches on multiple modules to make them all compliant with the new interface) Thanks, Mike
