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

- Class Summary
  Class | Description
  --- | ---
  DroolsAbstractQuadConstraintStream<Solution_,​A,​B,​C,​D> |
  DroolsExistsQuadConstraintStream<Solution_,​A,​B,​C,​D> |
  DroolsFilterQuadConstraintStream<Solution_,​A,​B,​C,​D> |
  DroolsFlatteningQuadConstraintStream<Solution_,​A,​B,​C,​NewD> |
  DroolsGroupingQuadConstraintStream<Solution_,​NewA,​NewB,​NewC,​NewD> |
  DroolsJoinQuadConstraintStream<Solution_,​A,​B,​C,​D> |