java.lang.Object
- org.optaplanner.core.impl.score.stream.common.AbstractConstraintStream<Solution_>
- - org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractConstraintStream<Solution_>
  - - org.optaplanner.core.impl.score.stream.drools.quad.DroolsAbstractQuadConstraintStream<Solution_,A,B,C,D>

All Implemented Interfaces:

ConstraintStream, QuadConstraintStream<A,B,C,D>, InnerQuadConstraintStream<A,B,C,D>

Direct Known Subclasses:

DroolsExistsQuadConstraintStream, DroolsFilterQuadConstraintStream, DroolsFlatteningQuadConstraintStream, DroolsGroupingQuadConstraintStream, DroolsJoinQuadConstraintStream
```
public abstract class DroolsAbstractQuadConstraintStream<Solution_,A,B,C,D>
extends DroolsAbstractConstraintStream<Solution_>
implements InnerQuadConstraintStream<A,B,C,D>
```

Field Summary
- Fields inherited from class org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractConstraintStream
  constraintFactory

Constructor Summary

Constructors
Constructor	Description
`DroolsAbstractQuadConstraintStream(DroolsConstraintFactory<Solution_> constraintFactory, RetrievalSemantics retrievalSemantics)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`QuadConstraintStream<A,B,C,D>`	`filter(QuadPredicate<A,B,C,D> predicate)`	Exhaustively test each tuple of facts against the `QuadPredicate` and match if `QuadPredicate.test(Object, Object, Object, Object)` returns true.
`<ResultD_> QuadConstraintStream<A,B,C,ResultD_>`	`flattenLast(Function<D,Iterable<ResultD_>> mapping)`	As defined by `BiConstraintStream.flattenLast(Function)`.
`abstract QuadLeftHandSide<A,B,C,D>`	`getLeftHandSide()`
`<GroupKey_> UniConstraintStream<GroupKey_>`	`groupBy(QuadFunction<A,B,C,D,GroupKey_> groupKeyMapping)`	Convert the `QuadConstraintStream` to a `UniConstraintStream`, containing the set of tuples resulting from applying the group key mapping function on all tuples of the original stream.
`<GroupKey_,ResultContainer_,Result_> BiConstraintStream<GroupKey_,Result_>`	`groupBy(QuadFunction<A,B,C,D,GroupKey_> groupKeyMapping, QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_> collector)`	Convert the `QuadConstraintStream` to a `BiConstraintStream`, consisting of unique tuples.
`<GroupKey_,ResultContainerB_,ResultB_,ResultContainerC_,ResultC_> TriConstraintStream<GroupKey_,ResultB_,ResultC_>`	`groupBy(QuadFunction<A,B,C,D,GroupKey_> groupKeyMapping, QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB, QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC)`	Convert the `QuadConstraintStream` to a `TriConstraintStream`, consisting of unique tuples with three facts.
`<GroupKey_,ResultContainerB_,ResultB_,ResultContainerC_,ResultC_,ResultContainerD_,ResultD_> QuadConstraintStream<GroupKey_,ResultB_,ResultC_,ResultD_>`	`groupBy(QuadFunction<A,B,C,D,GroupKey_> groupKeyMapping, QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB, QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC, QuadConstraintCollector<A,B,C,D,ResultContainerD_,ResultD_> collectorD)`	Convert the `QuadConstraintStream` to a `QuadConstraintStream`, consisting of unique tuples with four facts.
`<GroupKeyA_,GroupKeyB_> BiConstraintStream<GroupKeyA_,GroupKeyB_>`	`groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping, QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping)`	Convert the `QuadConstraintStream` to a `BiConstraintStream`, consisting of unique tuples.
`<GroupKeyA_,GroupKeyB_,GroupKeyC_> TriConstraintStream<GroupKeyA_,GroupKeyB_,GroupKeyC_>`	`groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping, QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping, QuadFunction<A,B,C,D,GroupKeyC_> groupKeyCMapping)`	Convert the `QuadConstraintStream` to a `TriConstraintStream`, consisting of unique tuples with three facts.
`<GroupKeyA_,GroupKeyB_,GroupKeyC_,GroupKeyD_> QuadConstraintStream<GroupKeyA_,GroupKeyB_,GroupKeyC_,GroupKeyD_>`	`groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping, QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping, QuadFunction<A,B,C,D,GroupKeyC_> groupKeyCMapping, QuadFunction<A,B,C,D,GroupKeyD_> groupKeyDMapping)`	Convert the `TriConstraintStream` to a `QuadConstraintStream`, consisting of unique tuples with four facts.
`<GroupKeyA_,GroupKeyB_,GroupKeyC_,ResultContainerD_,ResultD_> QuadConstraintStream<GroupKeyA_,GroupKeyB_,GroupKeyC_,ResultD_>`	`groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping, QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping, QuadFunction<A,B,C,D,GroupKeyC_> groupKeyCMapping, QuadConstraintCollector<A,B,C,D,ResultContainerD_,ResultD_> collectorD)`	Combines the semantics of `QuadConstraintStream.groupBy(QuadFunction, QuadFunction)` and `QuadConstraintStream.groupBy(QuadConstraintCollector)`.
`<GroupKeyA_,GroupKeyB_,ResultContainer_,Result_> TriConstraintStream<GroupKeyA_,GroupKeyB_,Result_>`	`groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping, QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping, QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_> collector)`	Combines the semantics of `QuadConstraintStream.groupBy(QuadFunction, QuadFunction)` and `QuadConstraintStream.groupBy(QuadConstraintCollector)`.
`<GroupKeyA_,GroupKeyB_,ResultContainerC_,ResultC_,ResultContainerD_,ResultD_> QuadConstraintStream<GroupKeyA_,GroupKeyB_,ResultC_,ResultD_>`	`groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping, QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping, QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC, QuadConstraintCollector<A,B,C,D,ResultContainerD_,ResultD_> collectorD)`	Combines the semantics of `QuadConstraintStream.groupBy(QuadFunction, QuadFunction)` and `QuadConstraintStream.groupBy(QuadConstraintCollector)`.
`<ResultContainer_,Result_> UniConstraintStream<Result_>`	`groupBy(QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_> collector)`	Convert the `QuadConstraintStream` to a `UniConstraintStream`, containing only a single tuple, the result of applying `QuadConstraintCollector`.
`<ResultContainerA_,ResultA_,ResultContainerB_,ResultB_> BiConstraintStream<ResultA_,ResultB_>`	`groupBy(QuadConstraintCollector<A,B,C,D,ResultContainerA_,ResultA_> collectorA, QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB)`	Convert the `QuadConstraintStream` to a `BiConstraintStream`, containing only a single tuple, the result of applying two `QuadConstraintCollector`s.
`<ResultContainerA_,ResultA_,ResultContainerB_,ResultB_,ResultContainerC_,ResultC_> TriConstraintStream<ResultA_,ResultB_,ResultC_>`	`groupBy(QuadConstraintCollector<A,B,C,D,ResultContainerA_,ResultA_> collectorA, QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB, QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC)`	Convert the `QuadConstraintStream` to a `TriConstraintStream`, containing only a single tuple, the result of applying three `QuadConstraintCollector`s.
`<ResultContainerA_,ResultA_,ResultContainerB_,ResultB_,ResultContainerC_,ResultC_,ResultContainerD_,ResultD_> QuadConstraintStream<ResultA_,ResultB_,ResultC_,ResultD_>`	`groupBy(QuadConstraintCollector<A,B,C,D,ResultContainerA_,ResultA_> collectorA, QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB, QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC, QuadConstraintCollector<A,B,C,D,ResultContainerD_,ResultD_> collectorD)`	Convert the `QuadConstraintStream` to a `QuadConstraintStream`, containing only a single tuple, the result of applying four `QuadConstraintCollector`s.
`<E> QuadConstraintStream<A,B,C,D>`	`ifExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E>... joiners)`	As defined by `QuadConstraintStream.ifExists(Class, PentaJoiner)`.
`<E> QuadConstraintStream<A,B,C,D>`	`ifExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E>... joiners)`	As defined by `QuadConstraintStream.ifExistsIncludingNullVars(Class, PentaJoiner)`.
`<E> QuadConstraintStream<A,B,C,D>`	`ifNotExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E>... joiners)`	As defined by `QuadConstraintStream.ifNotExists(Class, PentaJoiner)`.
`<E> QuadConstraintStream<A,B,C,D>`	`ifNotExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E>... joiners)`	As defined by `QuadConstraintStream.ifNotExistsIncludingNullVars(Class, PentaJoiner)`.
`Constraint`	`impactScore(String constraintPackage, String constraintName, Score<?> constraintWeight, ToIntQuadFunction<A,B,C,D> matchWeigher, ScoreImpactType impactType)`
`protected Constraint`	`impactScore(String constraintPackage, String constraintName, Score<?> constraintWeight, ScoreImpactType impactType)`
`Constraint`	`impactScoreBigDecimal(String constraintPackage, String constraintName, Score<?> constraintWeight, QuadFunction<A,B,C,D,BigDecimal> matchWeigher, ScoreImpactType impactType)`
`Constraint`	`impactScoreConfigurable(String constraintPackage, String constraintName, ToIntQuadFunction<A,B,C,D> matchWeigher, ScoreImpactType impactType)`
`protected Constraint`	`impactScoreConfigurable(String constraintPackage, String constraintName, ScoreImpactType impactType)`
`Constraint`	`impactScoreConfigurableBigDecimal(String constraintPackage, String constraintName, QuadFunction<A,B,C,D,BigDecimal> matchWeigher, ScoreImpactType impactType)`
`Constraint`	`impactScoreConfigurableLong(String constraintPackage, String constraintName, ToLongQuadFunction<A,B,C,D> matchWeigher, ScoreImpactType impactType)`
`Constraint`	`impactScoreLong(String constraintPackage, String constraintName, Score<?> constraintWeight, ToLongQuadFunction<A,B,C,D> matchWeigher, ScoreImpactType impactType)`
`<ResultA_> UniConstraintStream<ResultA_>`	`map(QuadFunction<A,B,C,D,ResultA_> mapping)`	As defined by `UniConstraintStream.map(Function)`.

Methods inherited from class org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractConstraintStream
addChildStream, buildConstraint, buildConstraintConfigurable, getChildStreams, getConstraintFactory

Methods inherited from class org.optaplanner.core.impl.score.stream.common.AbstractConstraintStream
buildConstraintWeightExtractor, buildConstraintWeightExtractor, getRetrievalSemantics, impact, penalize, penalizeConfigurable, reward, rewardConfigurable

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.optaplanner.core.api.score.stream.ConstraintStream
getConstraintFactory, impact, impact, penalize, penalize, penalizeConfigurable, penalizeConfigurable, reward, reward, rewardConfigurable, rewardConfigurable

Methods inherited from interface org.optaplanner.core.impl.score.stream.quad.InnerQuadConstraintStream
distinct, guaranteesDistinct, impact, impactBigDecimal, impactConfigurable, impactConfigurableBigDecimal, impactConfigurableLong, impactLong, penalize, penalizeBigDecimal, penalizeConfigurable, penalizeConfigurableBigDecimal, penalizeConfigurableLong, penalizeLong, reward, rewardBigDecimal, rewardConfigurable, rewardConfigurableBigDecimal, rewardConfigurableLong, rewardLong

- Constructor Detail
  - DroolsAbstractQuadConstraintStream
```
public DroolsAbstractQuadConstraintStream(DroolsConstraintFactory<Solution_> constraintFactory,
                                          RetrievalSemantics retrievalSemantics)
```
- Method Detail
  - filter
```
public QuadConstraintStream<A,B,C,D> filter(QuadPredicate<A,B,C,D> predicate)
```
    Description copied from interface: QuadConstraintStream
    
    Exhaustively test each tuple of facts against the QuadPredicate and match if QuadPredicate.test(Object, Object, Object, Object) returns true.
    Important: This is slower and less scalable than TriConstraintStream.join(UniConstraintStream, QuadJoiner) with a proper QuadJoiner predicate (such as Joiners.equal(TriFunction, Function), because the latter applies hashing and/or indexing, so it doesn't create every combination just to filter it out.
    
    Specified by:
    
    filter in interface QuadConstraintStream<Solution_,A,B,C>
    
    Parameters:
    
    predicate - never null
    
    Returns:
    
    never null
  - ifExists
```
@SafeVarargs
public final <E> QuadConstraintStream<A,B,C,D> ifExists(Class<E> otherClass,
                                                                          PentaJoiner<A,B,C,D,E>... joiners)
```
    Description copied from interface: QuadConstraintStream
    
    As defined by QuadConstraintStream.ifExists(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    This method causes Unchecked generics array creation for varargs parameter warnings, but we can't fix it with a SafeVarargs annotation because it's an interface method. Therefore, there are overloaded methods with up to 4 PentaJoiner parameters.
    
    Specified by:
    
    ifExists in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiners - never null
    
    Returns:
    
    never null, a stream that matches every tuple of A, B, C and D where E exists for which the PentaJoiners are true
  - ifExistsIncludingNullVars
```
@SafeVarargs
public final <E> QuadConstraintStream<A,B,C,D> ifExistsIncludingNullVars(Class<E> otherClass,
                                                                                           PentaJoiner<A,B,C,D,E>... joiners)
```
    Description copied from interface: QuadConstraintStream
    
    As defined by QuadConstraintStream.ifExistsIncludingNullVars(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    This method causes Unchecked generics array creation for varargs parameter warnings, but we can't fix it with a SafeVarargs annotation because it's an interface method. Therefore, there are overloaded methods with up to 4 PentaJoiner parameters.
    
    Specified by:
    
    ifExistsIncludingNullVars in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiners - never null
    
    Returns:
    
    never null, a stream that matches every tuple of A, B, C and D where E exists for which the PentaJoiners are true
  - ifNotExists
```
@SafeVarargs
public final <E> QuadConstraintStream<A,B,C,D> ifNotExists(Class<E> otherClass,
                                                                             PentaJoiner<A,B,C,D,E>... joiners)
```
    Description copied from interface: QuadConstraintStream
    
    As defined by QuadConstraintStream.ifNotExists(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    This method causes Unchecked generics array creation for varargs parameter warnings, but we can't fix it with a SafeVarargs annotation because it's an interface method. Therefore, there are overloaded methods with up to 4 PentaJoiner parameters.
    
    Specified by:
    
    ifNotExists in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiners - never null
    
    Returns:
    
    never null, a stream that matches every tuple of A, B, C and D where E does not exist for which the PentaJoiners are true
  - ifNotExistsIncludingNullVars
```
@SafeVarargs
public final <E> QuadConstraintStream<A,B,C,D> ifNotExistsIncludingNullVars(Class<E> otherClass,
                                                                                              PentaJoiner<A,B,C,D,E>... joiners)
```
    Description copied from interface: QuadConstraintStream
    
    As defined by QuadConstraintStream.ifNotExistsIncludingNullVars(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    This method causes Unchecked generics array creation for varargs parameter warnings, but we can't fix it with a SafeVarargs annotation because it's an interface method. Therefore, there are overloaded methods with up to 4 PentaJoiner parameters.
    
    Specified by:
    
    ifNotExistsIncludingNullVars in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiners - never null
    
    Returns:
    
    never null, a stream that matches every tuple of A, B, C and D where E does not exist for which the PentaJoiners are true
  - groupBy
```
public <ResultContainer_,Result_> UniConstraintStream<Result_> groupBy(QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_> collector)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a UniConstraintStream, containing only a single tuple, the result of applying QuadConstraintCollector. UniConstraintStream which only has a single tuple, the result of applying QuadConstraintCollector.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    ResultContainer_ - the mutable accumulation type (often hidden as an implementation detail)
    
    Result_ - the type of a fact in the destination UniConstraintStream's tuple
    
    Parameters:
    
    collector - never null, the collector to perform the grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <ResultContainerA_,ResultA_,ResultContainerB_,ResultB_> BiConstraintStream<ResultA_,ResultB_> groupBy(QuadConstraintCollector<A,B,C,D,ResultContainerA_,ResultA_> collectorA,
                                                                                                                                     QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a BiConstraintStream, containing only a single tuple, the result of applying two QuadConstraintCollectors.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    ResultContainerA_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultA_ - the type of the first fact in the destination BiConstraintStream's tuple
    
    ResultContainerB_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultB_ - the type of the second fact in the destination BiConstraintStream's tuple
    
    Parameters:
    
    collectorA - never null, the collector to perform the first grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorB - never null, the collector to perform the second grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <ResultContainerA_,ResultA_,ResultContainerB_,ResultB_,ResultContainerC_,ResultC_> TriConstraintStream<ResultA_,ResultB_,ResultC_> groupBy(QuadConstraintCollector<A,B,C,D,ResultContainerA_,ResultA_> collectorA,
                                                                                                                                                                                            QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB,
                                                                                                                                                                                            QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a TriConstraintStream, containing only a single tuple, the result of applying three QuadConstraintCollectors.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    ResultContainerA_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultA_ - the type of the first fact in the destination TriConstraintStream's tuple
    
    ResultContainerB_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultB_ - the type of the second fact in the destination TriConstraintStream's tuple
    
    ResultContainerC_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultC_ - the type of the third fact in the destination TriConstraintStream's tuple
    
    Parameters:
    
    collectorA - never null, the collector to perform the first grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorB - never null, the collector to perform the second grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorC - never null, the collector to perform the third grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <ResultContainerA_,ResultA_,ResultContainerB_,ResultB_,ResultContainerC_,ResultC_,ResultContainerD_,ResultD_> QuadConstraintStream<ResultA_,ResultB_,ResultC_,ResultD_> groupBy(QuadConstraintCollector<A,B,C,D,ResultContainerA_,ResultA_> collectorA,
                                                                                                                                                                                                                                                   QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB,
                                                                                                                                                                                                                                                   QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC,
                                                                                                                                                                                                                                                   QuadConstraintCollector<A,B,C,D,ResultContainerD_,ResultD_> collectorD)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a QuadConstraintStream, containing only a single tuple, the result of applying four QuadConstraintCollectors.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    ResultContainerA_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultA_ - the type of the first fact in the destination QuadConstraintStream's tuple
    
    ResultContainerB_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultB_ - the type of the second fact in the destination QuadConstraintStream's tuple
    
    ResultContainerC_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultC_ - the type of the third fact in the destination QuadConstraintStream's tuple
    
    ResultContainerD_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultD_ - the type of the fourth fact in the destination QuadConstraintStream's tuple
    
    Parameters:
    
    collectorA - never null, the collector to perform the first grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorB - never null, the collector to perform the second grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorC - never null, the collector to perform the third grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorD - never null, the collector to perform the fourth grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKey_> UniConstraintStream<GroupKey_> groupBy(QuadFunction<A,B,C,D,GroupKey_> groupKeyMapping)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a UniConstraintStream, containing the set of tuples resulting from applying the group key mapping function on all tuples of the original stream. Neither tuple of the new stream Objects.equals(Object, Object) any other.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKey_ - the type of a fact in the destination UniConstraintStream's tuple
    
    Parameters:
    
    groupKeyMapping - never null, mapping function to convert each element in the stream to a different element
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKey_,ResultContainer_,Result_> BiConstraintStream<GroupKey_,Result_> groupBy(QuadFunction<A,B,C,D,GroupKey_> groupKeyMapping,
                                                                                                            QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_> collector)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a BiConstraintStream, consisting of unique tuples.
    The first fact is the return value of the group key mapping function, applied on the incoming tuple. The second fact is the return value of a given QuadConstraintCollector applied on all incoming tuples with the same first fact.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKey_ - the type of the first fact in the destination BiConstraintStream's tuple
    
    ResultContainer_ - the mutable accumulation type (often hidden as an implementation detail)
    
    Result_ - the type of the second fact in the destination BiConstraintStream's tuple
    
    Parameters:
    
    groupKeyMapping - never null, function to convert the fact in the original tuple to a different fact
    
    collector - never null, the collector to perform the grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKey_,ResultContainerB_,ResultB_,ResultContainerC_,ResultC_> TriConstraintStream<GroupKey_,ResultB_,ResultC_> groupBy(QuadFunction<A,B,C,D,GroupKey_> groupKeyMapping,
                                                                                                                                                                      QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB,
                                                                                                                                                                      QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a TriConstraintStream, consisting of unique tuples with three facts.
    The first fact is the return value of the group key mapping function, applied on the incoming tuple. The remaining facts are the return value of the respective QuadConstraintCollector applied on all incoming tuples with the same first fact.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKey_ - the type of the first fact in the destination TriConstraintStream's tuple
    
    ResultContainerB_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultB_ - the type of the second fact in the destination TriConstraintStream's tuple
    
    ResultContainerC_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultC_ - the type of the third fact in the destination TriConstraintStream's tuple
    
    Parameters:
    
    groupKeyMapping - never null, function to convert the fact in the original tuple to a different fact
    
    collectorB - never null, the collector to perform the first grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorC - never null, the collector to perform the second grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKey_,ResultContainerB_,ResultB_,ResultContainerC_,ResultC_,ResultContainerD_,ResultD_> QuadConstraintStream<GroupKey_,ResultB_,ResultC_,ResultD_> groupBy(QuadFunction<A,B,C,D,GroupKey_> groupKeyMapping,
                                                                                                                                                                                                                             QuadConstraintCollector<A,B,C,D,ResultContainerB_,ResultB_> collectorB,
                                                                                                                                                                                                                             QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC,
                                                                                                                                                                                                                             QuadConstraintCollector<A,B,C,D,ResultContainerD_,ResultD_> collectorD)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a QuadConstraintStream, consisting of unique tuples with four facts.
    The first fact is the return value of the group key mapping function, applied on the incoming tuple. The remaining facts are the return value of the respective QuadConstraintCollector applied on all incoming tuples with the same first fact.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKey_ - the type of the first fact in the destination QuadConstraintStream's tuple
    
    ResultContainerB_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultB_ - the type of the second fact in the destination QuadConstraintStream's tuple
    
    ResultContainerC_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultC_ - the type of the third fact in the destination QuadConstraintStream's tuple
    
    ResultContainerD_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultD_ - the type of the fourth fact in the destination QuadConstraintStream's tuple
    
    Parameters:
    
    groupKeyMapping - never null, function to convert the fact in the original tuple to a different fact
    
    collectorB - never null, the collector to perform the first grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorC - never null, the collector to perform the second grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorD - never null, the collector to perform the third grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKeyA_,GroupKeyB_> BiConstraintStream<GroupKeyA_,GroupKeyB_> groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping,
                                                                                             QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a BiConstraintStream, consisting of unique tuples.
    The first fact is the return value of the first group key mapping function, applied on the incoming tuple. The second fact is the return value of the second group key mapping function, applied on all incoming tuples with the same first fact.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKeyA_ - the type of the first fact in the destination BiConstraintStream's tuple
    
    GroupKeyB_ - the type of the second fact in the destination BiConstraintStream's tuple
    
    Parameters:
    
    groupKeyAMapping - never null, function to convert the facts in the original tuple to a new fact
    
    groupKeyBMapping - never null, function to convert the facts in the original tuple to another new fact
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKeyA_,GroupKeyB_,ResultContainer_,Result_> TriConstraintStream<GroupKeyA_,GroupKeyB_,Result_> groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping,
                                                                                                                                                 QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping,
                                                                                                                                                 QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_> collector)
```
    Description copied from interface: QuadConstraintStream
    
    Combines the semantics of QuadConstraintStream.groupBy(QuadFunction, QuadFunction) and QuadConstraintStream.groupBy(QuadConstraintCollector). That is, the first and second facts in the tuple follow the QuadConstraintStream.groupBy(QuadFunction, QuadFunction) semantics, and the third fact is the result of applying QuadConstraintCollector.finisher() on all the tuples of the original UniConstraintStream that belong to the group.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKeyA_ - the type of the first fact in the destination TriConstraintStream's tuple
    
    GroupKeyB_ - the type of the second fact in the destination TriConstraintStream's tuple
    
    ResultContainer_ - the mutable accumulation type (often hidden as an implementation detail)
    
    Result_ - the type of the third fact in the destination TriConstraintStream's tuple
    
    Parameters:
    
    groupKeyAMapping - never null, function to convert the original tuple into a first fact
    
    groupKeyBMapping - never null, function to convert the original tuple into a second fact
    
    collector - never null, the collector to perform the grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKeyA_,GroupKeyB_,ResultContainerC_,ResultC_,ResultContainerD_,ResultD_> QuadConstraintStream<GroupKeyA_,GroupKeyB_,ResultC_,ResultD_> groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping,
                                                                                                                                                                                                           QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping,
                                                                                                                                                                                                           QuadConstraintCollector<A,B,C,D,ResultContainerC_,ResultC_> collectorC,
                                                                                                                                                                                                           QuadConstraintCollector<A,B,C,D,ResultContainerD_,ResultD_> collectorD)
```
    Description copied from interface: QuadConstraintStream
    
    Combines the semantics of QuadConstraintStream.groupBy(QuadFunction, QuadFunction) and QuadConstraintStream.groupBy(QuadConstraintCollector). That is, the first and second facts in the tuple follow the QuadConstraintStream.groupBy(QuadFunction, QuadFunction) semantics. The third fact is the result of applying the first QuadConstraintCollector.finisher() on all the tuples of the original QuadConstraintStream that belong to the group. The fourth fact is the result of applying the second QuadConstraintCollector.finisher() on all the tuples of the original QuadConstraintStream that belong to the group
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKeyA_ - the type of the first fact in the destination QuadConstraintStream's tuple
    
    GroupKeyB_ - the type of the second fact in the destination QuadConstraintStream's tuple
    
    ResultContainerC_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultC_ - the type of the third fact in the destination QuadConstraintStream's tuple
    
    ResultContainerD_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultD_ - the type of the fourth fact in the destination QuadConstraintStream's tuple
    
    Parameters:
    
    groupKeyAMapping - never null, function to convert the original tuple into a first fact
    
    groupKeyBMapping - never null, function to convert the original tuple into a second fact
    
    collectorC - never null, the collector to perform the first grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    collectorD - never null, the collector to perform the second grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKeyA_,GroupKeyB_,GroupKeyC_> TriConstraintStream<GroupKeyA_,GroupKeyB_,GroupKeyC_> groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping,
                                                                                                                                QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping,
                                                                                                                                QuadFunction<A,B,C,D,GroupKeyC_> groupKeyCMapping)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the QuadConstraintStream to a TriConstraintStream, consisting of unique tuples with three facts.
    The first fact is the return value of the first group key mapping function, applied on the incoming tuple. The second fact is the return value of the second group key mapping function, applied on all incoming tuples with the same first fact. The third fact is the return value of the third group key mapping function, applied on all incoming tuples with the same first fact.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKeyA_ - the type of the first fact in the destination TriConstraintStream's tuple
    
    GroupKeyB_ - the type of the second fact in the destination TriConstraintStream's tuple
    
    GroupKeyC_ - the type of the third fact in the destination TriConstraintStream's tuple
    
    Parameters:
    
    groupKeyAMapping - never null, function to convert the original tuple into a first fact
    
    groupKeyBMapping - never null, function to convert the original tuple into a second fact
    
    groupKeyCMapping - never null, function to convert the original tuple into a third fact
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKeyA_,GroupKeyB_,GroupKeyC_,ResultContainerD_,ResultD_> QuadConstraintStream<GroupKeyA_,GroupKeyB_,GroupKeyC_,ResultD_> groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping,
                                                                                                                                                                                       QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping,
                                                                                                                                                                                       QuadFunction<A,B,C,D,GroupKeyC_> groupKeyCMapping,
                                                                                                                                                                                       QuadConstraintCollector<A,B,C,D,ResultContainerD_,ResultD_> collectorD)
```
    Description copied from interface: QuadConstraintStream
    
    Combines the semantics of QuadConstraintStream.groupBy(QuadFunction, QuadFunction) and QuadConstraintStream.groupBy(QuadConstraintCollector). That is, the first three facts in the tuple follow the QuadConstraintStream.groupBy(QuadFunction, QuadFunction) semantics. The final fact is the result of applying the first QuadConstraintCollector.finisher() on all the tuples of the original QuadConstraintStream that belong to the group.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKeyA_ - the type of the first fact in the destination QuadConstraintStream's tuple
    
    GroupKeyB_ - the type of the second fact in the destination QuadConstraintStream's tuple
    
    GroupKeyC_ - the type of the third fact in the destination QuadConstraintStream's tuple
    
    ResultContainerD_ - the mutable accumulation type (often hidden as an implementation detail)
    
    ResultD_ - the type of the fourth fact in the destination QuadConstraintStream's tuple
    
    Parameters:
    
    groupKeyAMapping - never null, function to convert the original tuple into a first fact
    
    groupKeyBMapping - never null, function to convert the original tuple into a second fact
    
    groupKeyCMapping - never null, function to convert the original tuple into a third fact
    
    collectorD - never null, the collector to perform the grouping operation with See ConstraintCollectors for common operations, such as count(), sum() and others.
    
    Returns:
    
    never null
  - groupBy
```
public <GroupKeyA_,GroupKeyB_,GroupKeyC_,GroupKeyD_> QuadConstraintStream<GroupKeyA_,GroupKeyB_,GroupKeyC_,GroupKeyD_> groupBy(QuadFunction<A,B,C,D,GroupKeyA_> groupKeyAMapping,
                                                                                                                                                                   QuadFunction<A,B,C,D,GroupKeyB_> groupKeyBMapping,
                                                                                                                                                                   QuadFunction<A,B,C,D,GroupKeyC_> groupKeyCMapping,
                                                                                                                                                                   QuadFunction<A,B,C,D,GroupKeyD_> groupKeyDMapping)
```
    Description copied from interface: QuadConstraintStream
    
    Convert the TriConstraintStream to a QuadConstraintStream, consisting of unique tuples with four facts.
    The first fact is the return value of the first group key mapping function, applied on the incoming tuple. The second fact is the return value of the second group key mapping function, applied on all incoming tuples with the same first fact. The third fact is the return value of the third group key mapping function, applied on all incoming tuples with the same first fact. The fourth fact is the return value of the fourth group key mapping function, applied on all incoming tuples with the same first fact.
    
    Specified by:
    
    groupBy in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    GroupKeyA_ - the type of the first fact in the destination QuadConstraintStream's tuple
    
    GroupKeyB_ - the type of the second fact in the destination QuadConstraintStream's tuple
    
    GroupKeyC_ - the type of the third fact in the destination QuadConstraintStream's tuple
    
    GroupKeyD_ - the type of the fourth fact in the destination QuadConstraintStream's tuple
    
    Parameters:
    
    groupKeyAMapping - never null, function to convert the original tuple into a first fact
    
    groupKeyBMapping - never null, function to convert the original tuple into a second fact
    
    groupKeyCMapping - never null, function to convert the original tuple into a third fact
    
    groupKeyDMapping - never null, function to convert the original tuple into a fourth fact
    
    Returns:
    
    never null
  - map
```
public <ResultA_> UniConstraintStream<ResultA_> map(QuadFunction<A,B,C,D,ResultA_> mapping)
```
    Description copied from interface: QuadConstraintStream
    
    As defined by UniConstraintStream.map(Function).
    
    Specified by:
    
    map in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    ResultA_ - the type of the only fact in the resulting UniConstraintStream's tuple
    
    Parameters:
    
    mapping - never null, function to convert the original tuple into the new tuple
    
    Returns:
    
    never null
  - flattenLast
```
public <ResultD_> QuadConstraintStream<A,B,C,ResultD_> flattenLast(Function<D,Iterable<ResultD_>> mapping)
```
    Description copied from interface: QuadConstraintStream
    
    As defined by BiConstraintStream.flattenLast(Function).
    
    Specified by:
    
    flattenLast in interface QuadConstraintStream<Solution_,A,B,C>
    
    Type Parameters:
    
    ResultD_ - the type of the last fact in the resulting tuples
    
    Parameters:
    
    mapping - never null, function to convert the last fact in the original tuple into Iterable
    
    Returns:
    
    never null
  - impactScore
```
protected Constraint impactScore(String constraintPackage,
                                 String constraintName,
                                 Score<?> constraintWeight,
                                 ScoreImpactType impactType)
```
    Specified by:
    
    impactScore in class AbstractConstraintStream<Solution_>
  - impactScore
```
public Constraint impactScore(String constraintPackage,
                              String constraintName,
                              Score<?> constraintWeight,
                              ToIntQuadFunction<A,B,C,D> matchWeigher,
                              ScoreImpactType impactType)
```
    Specified by:
    
    impactScore in interface InnerQuadConstraintStream<Solution_,A,B,C>
  - impactScoreLong
```
public Constraint impactScoreLong(String constraintPackage,
                                  String constraintName,
                                  Score<?> constraintWeight,
                                  ToLongQuadFunction<A,B,C,D> matchWeigher,
                                  ScoreImpactType impactType)
```
    Specified by:
    
    impactScoreLong in interface InnerQuadConstraintStream<Solution_,A,B,C>
  - impactScoreBigDecimal
```
public Constraint impactScoreBigDecimal(String constraintPackage,
                                        String constraintName,
                                        Score<?> constraintWeight,
                                        QuadFunction<A,B,C,D,BigDecimal> matchWeigher,
                                        ScoreImpactType impactType)
```
    Specified by:
    
    impactScoreBigDecimal in interface InnerQuadConstraintStream<Solution_,A,B,C>
  - impactScoreConfigurable
```
protected Constraint impactScoreConfigurable(String constraintPackage,
                                             String constraintName,
                                             ScoreImpactType impactType)
```
    Specified by:
    
    impactScoreConfigurable in class AbstractConstraintStream<Solution_>
  - impactScoreConfigurable
```
public Constraint impactScoreConfigurable(String constraintPackage,
                                          String constraintName,
                                          ToIntQuadFunction<A,B,C,D> matchWeigher,
                                          ScoreImpactType impactType)
```
    Specified by:
    
    impactScoreConfigurable in interface InnerQuadConstraintStream<Solution_,A,B,C>
  - impactScoreConfigurableLong
```
public Constraint impactScoreConfigurableLong(String constraintPackage,
                                              String constraintName,
                                              ToLongQuadFunction<A,B,C,D> matchWeigher,
                                              ScoreImpactType impactType)
```
    Specified by:
    
    impactScoreConfigurableLong in interface InnerQuadConstraintStream<Solution_,A,B,C>
  - impactScoreConfigurableBigDecimal
```
public Constraint impactScoreConfigurableBigDecimal(String constraintPackage,
                                                    String constraintName,
                                                    QuadFunction<A,B,C,D,BigDecimal> matchWeigher,
                                                    ScoreImpactType impactType)
```
    Specified by:
    
    impactScoreConfigurableBigDecimal in interface InnerQuadConstraintStream<Solution_,A,B,C>
  - getLeftHandSide
```
public abstract QuadLeftHandSide<A,B,C,D> getLeftHandSide()
```

Class DroolsAbstractQuadConstraintStream<Solution_,​A,​B,​C,​D>

Field Summary

Fields inherited from class org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractConstraintStream

Constructor Summary

Method Summary

Methods inherited from class org.optaplanner.core.impl.score.stream.drools.common.DroolsAbstractConstraintStream

Methods inherited from class org.optaplanner.core.impl.score.stream.common.AbstractConstraintStream

Methods inherited from class java.lang.Object

Methods inherited from interface org.optaplanner.core.api.score.stream.ConstraintStream

Methods inherited from interface org.optaplanner.core.impl.score.stream.quad.InnerQuadConstraintStream

Methods inherited from interface org.optaplanner.core.api.score.stream.quad.QuadConstraintStream

Constructor Detail

DroolsAbstractQuadConstraintStream

Method Detail

filter

ifExists

ifExistsIncludingNullVars

ifNotExists

ifNotExistsIncludingNullVars

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

map

flattenLast

impactScore

impactScore

impactScoreLong

impactScoreBigDecimal

impactScoreConfigurable

impactScoreConfigurable

impactScoreConfigurableLong

impactScoreConfigurableBigDecimal

getLeftHandSide

Class DroolsAbstractQuadConstraintStream<Solution_,A,B,C,D>