# Hierarchy For Package org.optaplanner.core.impl.score.stream.drools.uni

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.optaplanner.core.impl.score.stream.common.AbstractConstraintStream<Solution_> (implements org.optaplanner.core.api.score.stream.ConstraintStream)
    - org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractConstraintStream<Solution_>
      - org.optaplanner.core.impl.score.stream.drools.uni.DroolsAbstractUniConstraintStream<Solution_,​A> (implements org.optaplanner.core.impl.score.stream.uni.InnerUniConstraintStream<A>)
        - org.optaplanner.core.impl.score.stream.drools.uni.DroolsExistsUniConstraintStream<Solution_,​A>
        - org.optaplanner.core.impl.score.stream.drools.uni.DroolsFilterUniConstraintStream<Solution_,​A>
        - org.optaplanner.core.impl.score.stream.drools.uni.DroolsFromUniConstraintStream<Solution_,​A>
        - org.optaplanner.core.impl.score.stream.drools.uni.DroolsGroupingUniConstraintStream<Solution_,​NewA>
  - org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractAccumulateFunction<ResultContainer_,​InTuple,​OutTuple> (implements org.kie.api.runtime.rule.AccumulateFunction<C>)
    - org.optaplanner.core.impl.score.stream.drools.uni.DroolsUniAccumulateFunction<A,​ResultContainer_,​NewA>
  - org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractGroupByAccumulator<InTuple> (implements org.drools.core.spi.Accumulator)
    - org.optaplanner.core.impl.score.stream.drools.uni.DroolsUniToBiGroupByAccumulator<A,​NewA,​NewB>
    - org.optaplanner.core.impl.score.stream.drools.uni.DroolsUniToQuadGroupByAccumulator<A,​NewA,​NewB,​NewC,​NewD>
    - org.optaplanner.core.impl.score.stream.drools.uni.DroolsUniToTriGroupByAccumulator<A,​NewA,​NewB,​NewC>