Type Parameters:

A - the type of the first matched fact (either a problem fact or a planning entity)

B - the type of the second matched fact (either a problem fact or a planning entity)

C - the type of the third matched fact (either a problem fact or a planning entity)

D - the type of the fourth matched fact (either a problem fact or a planning entity)

All Superinterfaces:

ConstraintStream

All Known Subinterfaces:

InnerQuadConstraintStream<A,B,C,D>

All Known Implementing Classes:

DroolsAbstractQuadConstraintStream, DroolsExistsQuadConstraintStream, DroolsFilterQuadConstraintStream, DroolsFlatteningQuadConstraintStream, DroolsGroupingQuadConstraintStream, DroolsJoinQuadConstraintStream
```
public interface QuadConstraintStream<A,B,C,D>
extends ConstraintStream
```
A ConstraintStream that matches four facts.

See Also:

ConstraintStream

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`QuadConstraintStream<A,B,C,D>`	`distinct()`	Transforms the stream in such a way that all the tuples going through it are distinct.
`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)`.
`<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 `groupBy(QuadFunction, QuadFunction)` and `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 `groupBy(QuadFunction, QuadFunction)` and `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 `groupBy(QuadFunction, QuadFunction)` and `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.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner)`	Create a new `BiConstraintStream` for every tuple of A, B, C and D where E exists for which the `PentaJoiner` is true (for the properties it extracts from the facts).
`<E> QuadConstraintStream<A,B,C,D>`	`ifExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E>... joiners)`	As defined by `ifExists(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2)`	As defined by `ifExists(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2, PentaJoiner<A,B,C,D,E> joiner3)`	As defined by `ifExists(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2, PentaJoiner<A,B,C,D,E> joiner3, PentaJoiner<A,B,C,D,E> joiner4)`	As defined by `ifExists(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner)`	Create a new `BiConstraintStream` for every tuple of A, B, C and D where E exists for which the `PentaJoiner` is true (for the properties it extracts from the facts).
`<E> QuadConstraintStream<A,B,C,D>`	`ifExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E>... joiners)`	As defined by `ifExistsIncludingNullVars(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2)`	As defined by `ifExistsIncludingNullVars(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2, PentaJoiner<A,B,C,D,E> joiner3)`	As defined by `ifExistsIncludingNullVars(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2, PentaJoiner<A,B,C,D,E> joiner3, PentaJoiner<A,B,C,D,E> joiner4)`	As defined by `ifExistsIncludingNullVars(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifNotExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner)`	Create a new `BiConstraintStream` for every tuple of A, B, C and D where E does not exist for which the `PentaJoiner` is true (for the properties it extracts from the facts).
`<E> QuadConstraintStream<A,B,C,D>`	`ifNotExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E>... joiners)`	As defined by `ifNotExists(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifNotExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2)`	As defined by `ifNotExists(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifNotExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2, PentaJoiner<A,B,C,D,E> joiner3)`	As defined by `ifNotExists(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifNotExists(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2, PentaJoiner<A,B,C,D,E> joiner3, PentaJoiner<A,B,C,D,E> joiner4)`	As defined by `ifNotExists(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifNotExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner)`	Create a new `BiConstraintStream` for every tuple of A, B, C and D where E does not exist for which the `PentaJoiner` is true (for the properties it extracts from the facts).
`<E> QuadConstraintStream<A,B,C,D>`	`ifNotExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E>... joiners)`	As defined by `ifNotExistsIncludingNullVars(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifNotExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2)`	As defined by `ifNotExistsIncludingNullVars(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifNotExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2, PentaJoiner<A,B,C,D,E> joiner3)`	As defined by `ifNotExistsIncludingNullVars(Class, PentaJoiner)`.
`default <E> QuadConstraintStream<A,B,C,D>`	`ifNotExistsIncludingNullVars(Class<E> otherClass, PentaJoiner<A,B,C,D,E> joiner1, PentaJoiner<A,B,C,D,E> joiner2, PentaJoiner<A,B,C,D,E> joiner3, PentaJoiner<A,B,C,D,E> joiner4)`	As defined by `ifNotExistsIncludingNullVars(Class, PentaJoiner)`.
`Constraint`	`impact(String constraintPackage, String constraintName, Score<?> constraintWeight, ToIntQuadFunction<A,B,C,D> matchWeigher)`	As defined by `impact(String, Score, ToIntQuadFunction)`.
`default Constraint`	`impact(String constraintName, Score<?> constraintWeight, ToIntQuadFunction<A,B,C,D> matchWeigher)`	Positively or negatively impact the `Score` by the constraintWeight multiplied by the match weight.
`Constraint`	`impactBigDecimal(String constraintPackage, String constraintName, Score<?> constraintWeight, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	As defined by `impactBigDecimal(String, Score, QuadFunction)`.
`default Constraint`	`impactBigDecimal(String constraintName, Score<?> constraintWeight, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	Positively or negatively impact the `Score` by the constraintWeight multiplied by the match weight.
`Constraint`	`impactConfigurable(String constraintPackage, String constraintName, ToIntQuadFunction<A,B,C,D> matchWeigher)`	As defined by `impactConfigurable(String, ToIntQuadFunction)`.
`default Constraint`	`impactConfigurable(String constraintName, ToIntQuadFunction<A,B,C,D> matchWeigher)`	Positively or negatively impact the `Score` by the `ConstraintWeight` for each match.
`Constraint`	`impactConfigurableBigDecimal(String constraintPackage, String constraintName, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	As defined by `impactConfigurableBigDecimal(String, QuadFunction)`.
`default Constraint`	`impactConfigurableBigDecimal(String constraintName, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	Positively or negatively impact the `Score` by the `ConstraintWeight` for each match.
`Constraint`	`impactConfigurableLong(String constraintPackage, String constraintName, ToLongQuadFunction<A,B,C,D> matchWeigher)`	As defined by `impactConfigurableLong(String, ToLongQuadFunction)`.
`default Constraint`	`impactConfigurableLong(String constraintName, ToLongQuadFunction<A,B,C,D> matchWeigher)`	Positively or negatively impact the `Score` by the `ConstraintWeight` for each match.
`Constraint`	`impactLong(String constraintPackage, String constraintName, Score<?> constraintWeight, ToLongQuadFunction<A,B,C,D> matchWeigher)`	As defined by `impactLong(String, Score, ToLongQuadFunction)`.
`default Constraint`	`impactLong(String constraintName, Score<?> constraintWeight, ToLongQuadFunction<A,B,C,D> matchWeigher)`	Positively or negatively impact the `Score` by the constraintWeight multiplied by the match weight.
`<ResultA_> UniConstraintStream<ResultA_>`	`map(QuadFunction<A,B,C,D,ResultA_> mapping)`	As defined by `UniConstraintStream.map(Function)`.
`Constraint`	`penalize(String constraintPackage, String constraintName, Score<?> constraintWeight, ToIntQuadFunction<A,B,C,D> matchWeigher)`	As defined by `penalize(String, Score, ToIntQuadFunction)`.
`default Constraint`	`penalize(String constraintName, Score<?> constraintWeight, ToIntQuadFunction<A,B,C,D> matchWeigher)`	Negatively impact the `Score`: subtract the constraintWeight multiplied by the match weight.
`Constraint`	`penalizeBigDecimal(String constraintPackage, String constraintName, Score<?> constraintWeight, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	As defined by `penalizeBigDecimal(String, Score, QuadFunction)`.
`default Constraint`	`penalizeBigDecimal(String constraintName, Score<?> constraintWeight, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	Negatively impact the `Score`: subtract the constraintWeight multiplied by the match weight.
`Constraint`	`penalizeConfigurable(String constraintPackage, String constraintName, ToIntQuadFunction<A,B,C,D> matchWeigher)`	As defined by `penalizeConfigurable(String, ToIntQuadFunction)`.
`default Constraint`	`penalizeConfigurable(String constraintName, ToIntQuadFunction<A,B,C,D> matchWeigher)`	Negatively impact the `Score`: subtract the `ConstraintWeight` multiplied by the match weight.
`Constraint`	`penalizeConfigurableBigDecimal(String constraintPackage, String constraintName, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	As defined by `penalizeConfigurableBigDecimal(String, QuadFunction)`.
`default Constraint`	`penalizeConfigurableBigDecimal(String constraintName, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	Negatively impact the `Score`: subtract the `ConstraintWeight` multiplied by the match weight.
`Constraint`	`penalizeConfigurableLong(String constraintPackage, String constraintName, ToLongQuadFunction<A,B,C,D> matchWeigher)`	As defined by `penalizeConfigurableLong(String, ToLongQuadFunction)`.
`default Constraint`	`penalizeConfigurableLong(String constraintName, ToLongQuadFunction<A,B,C,D> matchWeigher)`	Negatively impact the `Score`: subtract the `ConstraintWeight` multiplied by the match weight.
`Constraint`	`penalizeLong(String constraintPackage, String constraintName, Score<?> constraintWeight, ToLongQuadFunction<A,B,C,D> matchWeigher)`	As defined by `penalizeLong(String, Score, ToLongQuadFunction)`.
`default Constraint`	`penalizeLong(String constraintName, Score<?> constraintWeight, ToLongQuadFunction<A,B,C,D> matchWeigher)`	Negatively impact the `Score`: subtract the constraintWeight multiplied by the match weight.
`Constraint`	`reward(String constraintPackage, String constraintName, Score<?> constraintWeight, ToIntQuadFunction<A,B,C,D> matchWeigher)`	As defined by `reward(String, Score, ToIntQuadFunction)`.
`default Constraint`	`reward(String constraintName, Score<?> constraintWeight, ToIntQuadFunction<A,B,C,D> matchWeigher)`	Positively impact the `Score`: add the constraintWeight multiplied by the match weight.
`Constraint`	`rewardBigDecimal(String constraintPackage, String constraintName, Score<?> constraintWeight, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	As defined by `rewardBigDecimal(String, Score, QuadFunction)`.
`default Constraint`	`rewardBigDecimal(String constraintName, Score<?> constraintWeight, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	Positively impact the `Score`: add the constraintWeight multiplied by the match weight.
`Constraint`	`rewardConfigurable(String constraintPackage, String constraintName, ToIntQuadFunction<A,B,C,D> matchWeigher)`	As defined by `rewardConfigurable(String, ToIntQuadFunction)`.
`default Constraint`	`rewardConfigurable(String constraintName, ToIntQuadFunction<A,B,C,D> matchWeigher)`	Positively impact the `Score`: add the `ConstraintWeight` multiplied by the match weight.
`Constraint`	`rewardConfigurableBigDecimal(String constraintPackage, String constraintName, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	As defined by `rewardConfigurableBigDecimal(String, QuadFunction)`.
`default Constraint`	`rewardConfigurableBigDecimal(String constraintName, QuadFunction<A,B,C,D,BigDecimal> matchWeigher)`	Positively impact the `Score`: add the `ConstraintWeight` multiplied by the match weight.
`Constraint`	`rewardConfigurableLong(String constraintPackage, String constraintName, ToLongQuadFunction<A,B,C,D> matchWeigher)`	As defined by `rewardConfigurableLong(String, ToLongQuadFunction)`.
`default Constraint`	`rewardConfigurableLong(String constraintName, ToLongQuadFunction<A,B,C,D> matchWeigher)`	Positively impact the `Score`: add the `ConstraintWeight` multiplied by the match weight.
`Constraint`	`rewardLong(String constraintPackage, String constraintName, Score<?> constraintWeight, ToLongQuadFunction<A,B,C,D> matchWeigher)`	As defined by `rewardLong(String, Score, ToLongQuadFunction)`.
`default Constraint`	`rewardLong(String constraintName, Score<?> constraintWeight, ToLongQuadFunction<A,B,C,D> matchWeigher)`	Positively impact the `Score`: add the constraintWeight multiplied by the match weight.

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

- Method Detail
  - filter
```
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.
    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.
    
    Parameters:
    
    predicate - never null
    
    Returns:
    
    never null
  - ifExists
```
default <E> QuadConstraintStream<A,B,C,D> ifExists(Class<E> otherClass,
                                                                     PentaJoiner<A,B,C,D,E> joiner)
```
    Create a new BiConstraintStream for every tuple of A, B, C and D where E exists for which the PentaJoiner is true (for the properties it extracts from the facts).
    This method has overloaded methods with multiple PentaJoiner parameters.
    Note that, if a legacy constraint stream uses ConstraintFactory.from(Class) as opposed to ConstraintFactory.forEach(Class), a different definition of exists applies. (See ConstraintFactory.from(Class) Javadoc.)
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner - never null
    
    Returns:
    
    never null, a stream that matches every tuple of A, B, C and D where E exists for which the PentaJoiner is true
  - ifExists
```
default <E> QuadConstraintStream<A,B,C,D> ifExists(Class<E> otherClass,
                                                                     PentaJoiner<A,B,C,D,E> joiner1,
                                                                     PentaJoiner<A,B,C,D,E> joiner2)
```
    As defined by ifExists(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - 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
  - ifExists
```
default <E> QuadConstraintStream<A,B,C,D> ifExists(Class<E> otherClass,
                                                                     PentaJoiner<A,B,C,D,E> joiner1,
                                                                     PentaJoiner<A,B,C,D,E> joiner2,
                                                                     PentaJoiner<A,B,C,D,E> joiner3)
```
    As defined by ifExists(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - never null
    
    joiner3 - 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
  - ifExists
```
default <E> QuadConstraintStream<A,B,C,D> ifExists(Class<E> otherClass,
                                                                     PentaJoiner<A,B,C,D,E> joiner1,
                                                                     PentaJoiner<A,B,C,D,E> joiner2,
                                                                     PentaJoiner<A,B,C,D,E> joiner3,
                                                                     PentaJoiner<A,B,C,D,E> joiner4)
```
    As defined by ifExists(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - never null
    
    joiner3 - never null
    
    joiner4 - 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
  - ifExists
```
<E> QuadConstraintStream<A,B,C,D> ifExists(Class<E> otherClass,
                                                             PentaJoiner<A,B,C,D,E>... joiners)
```
    As defined by 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.
    
    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
```
default <E> QuadConstraintStream<A,B,C,D> ifExistsIncludingNullVars(Class<E> otherClass,
                                                                                      PentaJoiner<A,B,C,D,E> joiner)
```
    Create a new BiConstraintStream for every tuple of A, B, C and D where E exists for which the PentaJoiner is true (for the properties it extracts from the facts). For classes annotated with PlanningEntity, this method also includes instances with null variables.
    This method has overloaded methods with multiple PentaJoiner parameters.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner - never null
    
    Returns:
    
    never null, a stream that matches every tuple of A, B, C and D where E exists for which the PentaJoiner is true
  - ifExistsIncludingNullVars
```
default <E> QuadConstraintStream<A,B,C,D> ifExistsIncludingNullVars(Class<E> otherClass,
                                                                                      PentaJoiner<A,B,C,D,E> joiner1,
                                                                                      PentaJoiner<A,B,C,D,E> joiner2)
```
    As defined by ifExistsIncludingNullVars(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - 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
```
default <E> QuadConstraintStream<A,B,C,D> ifExistsIncludingNullVars(Class<E> otherClass,
                                                                                      PentaJoiner<A,B,C,D,E> joiner1,
                                                                                      PentaJoiner<A,B,C,D,E> joiner2,
                                                                                      PentaJoiner<A,B,C,D,E> joiner3)
```
    As defined by ifExistsIncludingNullVars(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - never null
    
    joiner3 - 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
```
default <E> QuadConstraintStream<A,B,C,D> ifExistsIncludingNullVars(Class<E> otherClass,
                                                                                      PentaJoiner<A,B,C,D,E> joiner1,
                                                                                      PentaJoiner<A,B,C,D,E> joiner2,
                                                                                      PentaJoiner<A,B,C,D,E> joiner3,
                                                                                      PentaJoiner<A,B,C,D,E> joiner4)
```
    As defined by ifExistsIncludingNullVars(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - never null
    
    joiner3 - never null
    
    joiner4 - 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
```
<E> QuadConstraintStream<A,B,C,D> ifExistsIncludingNullVars(Class<E> otherClass,
                                                                              PentaJoiner<A,B,C,D,E>... joiners)
```
    As defined by 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.
    
    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
```
default <E> QuadConstraintStream<A,B,C,D> ifNotExists(Class<E> otherClass,
                                                                        PentaJoiner<A,B,C,D,E> joiner)
```
    Create a new BiConstraintStream for every tuple of A, B, C and D where E does not exist for which the PentaJoiner is true (for the properties it extracts from the facts).
    This method has overloaded methods with multiple PentaJoiner parameters.
    Note that, if a legacy constraint stream usesConstraintFactory.from(Class) as opposed to ConstraintFactory.forEach(Class), a different definition of exists applies. (See ConstraintFactory.from(Class) Javadoc.)
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner - 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 PentaJoiner is true
  - ifNotExists
```
default <E> QuadConstraintStream<A,B,C,D> ifNotExists(Class<E> otherClass,
                                                                        PentaJoiner<A,B,C,D,E> joiner1,
                                                                        PentaJoiner<A,B,C,D,E> joiner2)
```
    As defined by ifNotExists(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - 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
  - ifNotExists
```
default <E> QuadConstraintStream<A,B,C,D> ifNotExists(Class<E> otherClass,
                                                                        PentaJoiner<A,B,C,D,E> joiner1,
                                                                        PentaJoiner<A,B,C,D,E> joiner2,
                                                                        PentaJoiner<A,B,C,D,E> joiner3)
```
    As defined by ifNotExists(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - never null
    
    joiner3 - 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
  - ifNotExists
```
default <E> QuadConstraintStream<A,B,C,D> ifNotExists(Class<E> otherClass,
                                                                        PentaJoiner<A,B,C,D,E> joiner1,
                                                                        PentaJoiner<A,B,C,D,E> joiner2,
                                                                        PentaJoiner<A,B,C,D,E> joiner3,
                                                                        PentaJoiner<A,B,C,D,E> joiner4)
```
    As defined by ifNotExists(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - never null
    
    joiner3 - never null
    
    joiner4 - 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
  - ifNotExists
```
<E> QuadConstraintStream<A,B,C,D> ifNotExists(Class<E> otherClass,
                                                                PentaJoiner<A,B,C,D,E>... joiners)
```
    As defined by 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.
    
    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
```
default <E> QuadConstraintStream<A,B,C,D> ifNotExistsIncludingNullVars(Class<E> otherClass,
                                                                                         PentaJoiner<A,B,C,D,E> joiner)
```
    Create a new BiConstraintStream for every tuple of A, B, C and D where E does not exist for which the PentaJoiner is true (for the properties it extracts from the facts). For classes annotated with PlanningEntity, this method also includes instances with null variables.
    This method has overloaded methods with multiple PentaJoiner parameters.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner - 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 PentaJoiner is true
  - ifNotExistsIncludingNullVars
```
default <E> QuadConstraintStream<A,B,C,D> ifNotExistsIncludingNullVars(Class<E> otherClass,
                                                                                         PentaJoiner<A,B,C,D,E> joiner1,
                                                                                         PentaJoiner<A,B,C,D,E> joiner2)
```
    As defined by ifNotExistsIncludingNullVars(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - 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
```
default <E> QuadConstraintStream<A,B,C,D> ifNotExistsIncludingNullVars(Class<E> otherClass,
                                                                                         PentaJoiner<A,B,C,D,E> joiner1,
                                                                                         PentaJoiner<A,B,C,D,E> joiner2,
                                                                                         PentaJoiner<A,B,C,D,E> joiner3)
```
    As defined by ifNotExistsIncludingNullVars(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - never null
    
    joiner3 - 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
```
default <E> QuadConstraintStream<A,B,C,D> ifNotExistsIncludingNullVars(Class<E> otherClass,
                                                                                         PentaJoiner<A,B,C,D,E> joiner1,
                                                                                         PentaJoiner<A,B,C,D,E> joiner2,
                                                                                         PentaJoiner<A,B,C,D,E> joiner3,
                                                                                         PentaJoiner<A,B,C,D,E> joiner4)
```
    As defined by ifNotExistsIncludingNullVars(Class, PentaJoiner). For performance reasons, indexing joiners must be placed before filtering joiners.
    
    Type Parameters:
    
    E - the type of the fifth matched fact
    
    Parameters:
    
    otherClass - never null
    
    joiner1 - never null
    
    joiner2 - never null
    
    joiner3 - never null
    
    joiner4 - 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
```
<E> QuadConstraintStream<A,B,C,D> ifNotExistsIncludingNullVars(Class<E> otherClass,
                                                                                 PentaJoiner<A,B,C,D,E>... joiners)
```
    As defined by 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.
    
    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
```
<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. UniConstraintStream which only has a single tuple, the result of applying QuadConstraintCollector.
    
    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
```
<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 QuadConstraintCollectors.
    
    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
```
<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 QuadConstraintCollectors.
    
    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
```
<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 QuadConstraintCollectors.
    
    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
```
<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. Neither tuple of the new stream Objects.equals(Object, Object) any other.
    
    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
```
<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.
    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.
    
    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
```
<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.
    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.
    
    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
```
<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.
    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.
    
    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
```
<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.
    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.
    
    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
```
<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 groupBy(QuadFunction, QuadFunction) and groupBy(QuadConstraintCollector). That is, the first and second facts in the tuple follow the 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.
    
    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
```
<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 groupBy(QuadFunction, QuadFunction) and groupBy(QuadConstraintCollector). That is, the first and second facts in the tuple follow the 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
    
    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
```
<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.
    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.
    
    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
```
<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 groupBy(QuadFunction, QuadFunction) and groupBy(QuadConstraintCollector). That is, the first three facts in the tuple follow the 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.
    
    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
```
<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.
    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.
    
    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
```
<ResultA_> UniConstraintStream<ResultA_> map(QuadFunction<A,B,C,D,ResultA_> mapping)
```
    As defined by UniConstraintStream.map(Function).
    
    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
```
<ResultD_> QuadConstraintStream<A,B,C,ResultD_> flattenLast(Function<D,Iterable<ResultD_>> mapping)
```
    As defined by BiConstraintStream.flattenLast(Function).
    
    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
  - distinct
```
QuadConstraintStream<A,B,C,D> distinct()
```
    Transforms the stream in such a way that all the tuples going through it are distinct. (No two tuples will equal.)
    By default, tuples going through a constraint stream are distinct. However, operations such as map(QuadFunction) may create a stream which breaks that promise. By calling this method on such a stream, duplicate copies of the same tuple will be omitted at a performance cost.
    
    Returns:
    
    never null
  - penalize
```
default Constraint penalize(String constraintName,
                            Score<?> constraintWeight,
                            ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    Negatively impact the Score: subtract the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.penalize(String, Score).
    For non-int Score types use penalizeLong(String, Score, ToLongQuadFunction) or penalizeBigDecimal(String, Score, QuadFunction) instead.
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - penalize
```
Constraint penalize(String constraintPackage,
                    String constraintName,
                    Score<?> constraintWeight,
                    ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by penalize(String, Score, ToIntQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - penalizeLong
```
default Constraint penalizeLong(String constraintName,
                                Score<?> constraintWeight,
                                ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    Negatively impact the Score: subtract the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.penalize(String, Score).
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - penalizeLong
```
Constraint penalizeLong(String constraintPackage,
                        String constraintName,
                        Score<?> constraintWeight,
                        ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by penalizeLong(String, Score, ToLongQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - penalizeBigDecimal
```
default Constraint penalizeBigDecimal(String constraintName,
                                      Score<?> constraintWeight,
                                      QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    Negatively impact the Score: subtract the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.penalize(String, Score).
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - penalizeBigDecimal
```
Constraint penalizeBigDecimal(String constraintPackage,
                              String constraintName,
                              Score<?> constraintWeight,
                              QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    As defined by penalizeBigDecimal(String, Score, QuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - penalizeConfigurable
```
default Constraint penalizeConfigurable(String constraintName,
                                        ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    Negatively impact the Score: subtract the ConstraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.penalizeConfigurable(String).
    For non-int Score types use penalizeConfigurableLong(String, ToLongQuadFunction) or penalizeConfigurableBigDecimal(String, QuadFunction) instead.
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - penalizeConfigurable
```
Constraint penalizeConfigurable(String constraintPackage,
                                String constraintName,
                                ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by penalizeConfigurable(String, ToIntQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - penalizeConfigurableLong
```
default Constraint penalizeConfigurableLong(String constraintName,
                                            ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    Negatively impact the Score: subtract the ConstraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.penalizeConfigurable(String).
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - penalizeConfigurableLong
```
Constraint penalizeConfigurableLong(String constraintPackage,
                                    String constraintName,
                                    ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by penalizeConfigurableLong(String, ToLongQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - penalizeConfigurableBigDecimal
```
default Constraint penalizeConfigurableBigDecimal(String constraintName,
                                                  QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    Negatively impact the Score: subtract the ConstraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.penalizeConfigurable(String).
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - penalizeConfigurableBigDecimal
```
Constraint penalizeConfigurableBigDecimal(String constraintPackage,
                                          String constraintName,
                                          QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    As defined by penalizeConfigurableBigDecimal(String, QuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - reward
```
default Constraint reward(String constraintName,
                          Score<?> constraintWeight,
                          ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    Positively impact the Score: add the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.reward(String, Score).
    For non-int Score types use rewardLong(String, Score, ToLongQuadFunction) or rewardBigDecimal(String, Score, QuadFunction) instead.
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - reward
```
Constraint reward(String constraintPackage,
                  String constraintName,
                  Score<?> constraintWeight,
                  ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by reward(String, Score, ToIntQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - rewardLong
```
default Constraint rewardLong(String constraintName,
                              Score<?> constraintWeight,
                              ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    Positively impact the Score: add the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.reward(String, Score).
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - rewardLong
```
Constraint rewardLong(String constraintPackage,
                      String constraintName,
                      Score<?> constraintWeight,
                      ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by rewardLong(String, Score, ToLongQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - rewardBigDecimal
```
default Constraint rewardBigDecimal(String constraintName,
                                    Score<?> constraintWeight,
                                    QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    Positively impact the Score: add the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.reward(String, Score).
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - rewardBigDecimal
```
Constraint rewardBigDecimal(String constraintPackage,
                            String constraintName,
                            Score<?> constraintWeight,
                            QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    As defined by rewardBigDecimal(String, Score, QuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - rewardConfigurable
```
default Constraint rewardConfigurable(String constraintName,
                                      ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    Positively impact the Score: add the ConstraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.rewardConfigurable(String).
    For non-int Score types use rewardConfigurableLong(String, ToLongQuadFunction) or rewardConfigurableBigDecimal(String, QuadFunction) instead.
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - rewardConfigurable
```
Constraint rewardConfigurable(String constraintPackage,
                              String constraintName,
                              ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by rewardConfigurable(String, ToIntQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - rewardConfigurableLong
```
default Constraint rewardConfigurableLong(String constraintName,
                                          ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    Positively impact the Score: add the ConstraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.rewardConfigurable(String).
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - rewardConfigurableLong
```
Constraint rewardConfigurableLong(String constraintPackage,
                                  String constraintName,
                                  ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by rewardConfigurableLong(String, ToLongQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - rewardConfigurableBigDecimal
```
default Constraint rewardConfigurableBigDecimal(String constraintName,
                                                QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    Positively impact the Score: add the ConstraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.rewardConfigurable(String).
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - rewardConfigurableBigDecimal
```
Constraint rewardConfigurableBigDecimal(String constraintPackage,
                                        String constraintName,
                                        QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    As defined by rewardConfigurableBigDecimal(String, QuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - impact
```
default Constraint impact(String constraintName,
                          Score<?> constraintWeight,
                          ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    Positively or negatively impact the Score by the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.impact(String, Score).
    Use penalize(...) or reward(...) instead, unless this constraint can both have positive and negative weights.
    For non-int Score types use impactLong(String, Score, ToLongQuadFunction) or impactBigDecimal(String, Score, QuadFunction) instead.
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - impact
```
Constraint impact(String constraintPackage,
                  String constraintName,
                  Score<?> constraintWeight,
                  ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by impact(String, Score, ToIntQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - impactLong
```
default Constraint impactLong(String constraintName,
                              Score<?> constraintWeight,
                              ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    Positively or negatively impact the Score by the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.impact(String, Score).
    Use penalizeLong(...) or rewardLong(...) instead, unless this constraint can both have positive and negative weights.
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - impactLong
```
Constraint impactLong(String constraintPackage,
                      String constraintName,
                      Score<?> constraintWeight,
                      ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by impactLong(String, Score, ToLongQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - impactBigDecimal
```
default Constraint impactBigDecimal(String constraintName,
                                    Score<?> constraintWeight,
                                    QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    Positively or negatively impact the Score by the constraintWeight multiplied by the match weight. Otherwise as defined by ConstraintStream.impact(String, Score).
    Use penalizeBigDecimal(...) or rewardBigDecimal(...) instead, unless this constraint can both have positive and negative weights.
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    constraintWeight - never null
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - impactBigDecimal
```
Constraint impactBigDecimal(String constraintPackage,
                            String constraintName,
                            Score<?> constraintWeight,
                            QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    As defined by impactBigDecimal(String, Score, QuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    constraintWeight - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - impactConfigurable
```
default Constraint impactConfigurable(String constraintName,
                                      ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    Positively or negatively impact the Score by the ConstraintWeight for each match.
    Use penalizeConfigurable(...) or rewardConfigurable(...) instead, unless this constraint can both have positive and negative weights.
    For non-int Score types use impactConfigurableLong(String, ToLongQuadFunction) or impactConfigurableBigDecimal(String, QuadFunction) instead.
    The constraintWeight comes from an ConstraintWeight annotated member on the ConstraintConfiguration, so end users can change the constraint weights dynamically. This constraint may be deactivated if the ConstraintWeight is zero. If there is no ConstraintConfiguration, use ConstraintStream.impact(String, Score) instead.
    The Constraint.getConstraintPackage() defaults to ConstraintConfiguration.constraintPackage().
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - impactConfigurable
```
Constraint impactConfigurable(String constraintPackage,
                              String constraintName,
                              ToIntQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by impactConfigurable(String, ToIntQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - impactConfigurableLong
```
default Constraint impactConfigurableLong(String constraintName,
                                          ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    Positively or negatively impact the Score by the ConstraintWeight for each match.
    Use penalizeConfigurableLong(...) or rewardConfigurableLong(...) instead, unless this constraint can both have positive and negative weights.
    The constraintWeight comes from an ConstraintWeight annotated member on the ConstraintConfiguration, so end users can change the constraint weights dynamically. This constraint may be deactivated if the ConstraintWeight is zero. If there is no ConstraintConfiguration, use ConstraintStream.impact(String, Score) instead.
    The Constraint.getConstraintPackage() defaults to ConstraintConfiguration.constraintPackage().
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - impactConfigurableLong
```
Constraint impactConfigurableLong(String constraintPackage,
                                  String constraintName,
                                  ToLongQuadFunction<A,B,C,D> matchWeigher)
```
    As defined by impactConfigurableLong(String, ToLongQuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null
  - impactConfigurableBigDecimal
```
default Constraint impactConfigurableBigDecimal(String constraintName,
                                                QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    Positively or negatively impact the Score by the ConstraintWeight for each match.
    Use penalizeConfigurableBigDecimal(...) or rewardConfigurableBigDecimal(...) instead, unless this constraint can both have positive and negative weights.
    The constraintWeight comes from an ConstraintWeight annotated member on the ConstraintConfiguration, so end users can change the constraint weights dynamically. This constraint may be deactivated if the ConstraintWeight is zero. If there is no ConstraintConfiguration, use ConstraintStream.impact(String, Score) instead.
    The Constraint.getConstraintPackage() defaults to ConstraintConfiguration.constraintPackage().
    
    Parameters:
    
    constraintName - never null, shows up in ConstraintMatchTotal during score justification
    
    matchWeigher - never null, the result of this function (matchWeight) is multiplied by the constraintWeight
    
    Returns:
    
    never null
  - impactConfigurableBigDecimal
```
Constraint impactConfigurableBigDecimal(String constraintPackage,
                                        String constraintName,
                                        QuadFunction<A,B,C,D,BigDecimal> matchWeigher)
```
    As defined by impactConfigurableBigDecimal(String, QuadFunction).
    
    Parameters:
    
    constraintPackage - never null
    
    constraintName - never null
    
    matchWeigher - never null
    
    Returns:
    
    never null

Interface QuadConstraintStream<A,​B,​C,​D>

Method Summary

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

Method Detail

filter

ifExists

ifExists

ifExists

ifExists

ifExists

ifExistsIncludingNullVars

ifExistsIncludingNullVars

ifExistsIncludingNullVars

ifExistsIncludingNullVars

ifExistsIncludingNullVars

ifNotExists

ifNotExists

ifNotExists

ifNotExists

ifNotExists

ifNotExistsIncludingNullVars

ifNotExistsIncludingNullVars

ifNotExistsIncludingNullVars

ifNotExistsIncludingNullVars

ifNotExistsIncludingNullVars

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

groupBy

map

flattenLast

distinct

penalize

penalize

penalizeLong

penalizeLong

penalizeBigDecimal

penalizeBigDecimal

penalizeConfigurable

penalizeConfigurable

penalizeConfigurableLong

penalizeConfigurableLong

penalizeConfigurableBigDecimal

penalizeConfigurableBigDecimal

reward

reward

rewardLong

rewardLong

rewardBigDecimal

rewardBigDecimal

rewardConfigurable

rewardConfigurable

rewardConfigurableLong

rewardConfigurableLong

rewardConfigurableBigDecimal

rewardConfigurableBigDecimal

impact

impact

impactLong

impactLong

impactBigDecimal

impactBigDecimal

impactConfigurable

impactConfigurable

impactConfigurableLong

impactConfigurableLong

impactConfigurableBigDecimal

impactConfigurableBigDecimal

Interface QuadConstraintStream<A,B,C,D>