# Package org.optaplanner.core.impl.score.stream.drools.bi

- Class Summary
  Class | Description
  --- | ---
  DroolsAbstractBiConstraintStream<Solution_,​A,​B> |
  DroolsExistsBiConstraintStream<Solution_,​A,​B> |
  DroolsFilterBiConstraintStream<Solution_,​A,​B> |
  DroolsFlatteningBiConstraintStream<Solution_,​A,​NewB> |
  DroolsGroupingBiConstraintStream<Solution_,​NewA,​NewB> |
  DroolsJoinBiConstraintStream<Solution_,​A,​B> |