Package com.yahoo.search.federation

The federation layer on top of the search container. This contains
  • A model of Sources which can be selected in and for a Query and which are implemented by a Search Chain, and Providers which represents the connection to specific backends (these two are often 1-1 but not always)
  • The federation searcher responsible for forking a query to multiple sources in parallel
  • A simple searcher which can talk to other vespa services