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

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.common.BiTuple<A,​B> (implements org.optaplanner.core.impl.score.stream.drools.common.FactTuple)
  - org.optaplanner.core.impl.score.stream.drools.common.ConstraintGraph
  - 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.common.DroolsAbstractBiCollectingGroupByCollectorProcessor<ResultContainer1,​ResultContainer2,​InTuple,​KeyTuple,​OutTuple>
  - org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractGroupBy<InTuple,​OutTuple> (implements java.io.Serializable)
  - org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractGroupByAccumulator<InTuple> (implements org.drools.core.spi.Accumulator)
  - org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractUniCollectingGroupByCollectorProcessor<ResultContainer,​InTuple,​KeyTuple,​OutTuple>
  - org.optaplanner.core.impl.score.stream.drools.common.DroolsAccumulateContext<ResultContainer_> (implements java.io.Serializable)
  - org.optaplanner.core.impl.score.stream.drools.common.QuadTuple<A,​B,​C,​D> (implements org.optaplanner.core.impl.score.stream.drools.common.FactTuple)
  - org.optaplanner.core.impl.score.stream.drools.common.TriTuple<A,​B,​C> (implements org.optaplanner.core.impl.score.stream.drools.common.FactTuple)

## Interface Hierarchy

- org.optaplanner.core.impl.score.stream.drools.common.DroolsVariableFactory
- org.optaplanner.core.impl.score.stream.drools.common.FactTuple
- java.io.Serializable
  - org.optaplanner.core.impl.score.stream.drools.common.GroupByCollectorProcessor<InTuple,​OutTuple>