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

Class DefaultQuadConstraintCollector<A,B,C,D,ResultContainer_,Result_>

java.lang.Object

org.optaplanner.core.impl.score.stream.quad.DefaultQuadConstraintCollector<A,B,C,D,ResultContainer_,Result_>

All Implemented Interfaces:

QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_>

public final class DefaultQuadConstraintCollector<A,B,C,D,ResultContainer_,Result_>
extends Object
implements QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_>

Constructor Summary

Constructors

Constructor	Description
DefaultQuadConstraintCollector(Supplier<ResultContainer_> supplier, PentaFunction<ResultContainer_,A,B,C,D,Runnable> accumulator, Function<ResultContainer_,Result_> finisher)

Method Summary

Modifier and Type	Method	Description
PentaFunction<ResultContainer_,A,B,C,D,Runnable>	accumulator()	A lambda that extracts data from the matched facts, accumulates it in the result container and returns an undo operation for that accumulation.
Function<ResultContainer_,Result_>	finisher()	A lambda that converts the result container into the result.
static <A,B,C,D,Result_> QuadConstraintCollector<A,B,C,D,?,Result_>	noop()
Supplier<ResultContainer_>	supplier()	A lambda that creates the result container, one for each group key combination.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultQuadConstraintCollector

public DefaultQuadConstraintCollector(Supplier<ResultContainer_> supplier,
                                      PentaFunction<ResultContainer_,A,B,C,D,Runnable> accumulator,
                                      Function<ResultContainer_,Result_> finisher)

Method Detail

noop

public static <A,B,C,D,Result_> QuadConstraintCollector<A,B,C,D,?,Result_> noop()

supplier

public Supplier<ResultContainer_> supplier()

Description copied from interface: QuadConstraintCollector

A lambda that creates the result container, one for each group key combination.

Specified by:

supplier in interface QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_>

Returns:

never null

accumulator

public PentaFunction<ResultContainer_,A,B,C,D,Runnable> accumulator()

Description copied from interface: QuadConstraintCollector

A lambda that extracts data from the matched facts, accumulates it in the result container and returns an undo operation for that accumulation.

Specified by:

accumulator in interface QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_>

Returns:

never null, the undo operation. This lambda is called when the facts no longer matches.

finisher

public Function<ResultContainer_,Result_> finisher()

Description copied from interface: QuadConstraintCollector

A lambda that converts the result container into the result.

Specified by:

finisher in interface QuadConstraintCollector<A,B,C,D,ResultContainer_,Result_>

Returns:

never null