- Type Parameters:
T0- the type of the items in the primary stage
public class StreamHashJoinBuilder<T0> extends GeneralHashJoinBuilder<T0>
StreamStage.hashJoinBuilder()on the primary stage, the one whose data will be enriched from all other stages.
Collect all the tags returned from
add() and use them to retrieve
the enriching items from
ItemsByTag you get in the result.
This object is mainly intended to build a hash-join of the primary stage
with three or more contributing stages. For one or two stages, prefer the
stage.hashJoin(...) calls because they offer more static
buildBuilds a new pipeline stage that performs the hash-join operation. Attaches the stage to all the contributing stages.
mapToOutputFn- the function to map the output item. It must be stateless and cooperative.
- the new hash-join pipeline stage