org.optaplanner.constraint.streams.drools.bi.DroolsGroupingBiConstraintStream Maven / Gradle / Ivy

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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package org.optaplanner.constraint.streams.drools.bi;

import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Supplier;

import org.optaplanner.constraint.streams.drools.DroolsConstraintFactory;
import org.optaplanner.constraint.streams.drools.common.BiLeftHandSide;
import org.optaplanner.constraint.streams.drools.quad.DroolsAbstractQuadConstraintStream;
import org.optaplanner.constraint.streams.drools.tri.DroolsAbstractTriConstraintStream;
import org.optaplanner.constraint.streams.drools.uni.DroolsAbstractUniConstraintStream;
import org.optaplanner.core.api.function.QuadFunction;
import org.optaplanner.core.api.function.TriFunction;
import org.optaplanner.core.api.score.stream.bi.BiConstraintCollector;
import org.optaplanner.core.api.score.stream.quad.QuadConstraintCollector;
import org.optaplanner.core.api.score.stream.tri.TriConstraintCollector;
import org.optaplanner.core.api.score.stream.uni.UniConstraintCollector;

public final class DroolsGroupingBiConstraintStream
        extends DroolsAbstractBiConstraintStream {

    private final Supplier> leftHandSide;

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractUniConstraintStream parent, Function groupKeyAMapping,
            Function groupKeyBMapping) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(groupKeyAMapping, groupKeyBMapping);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractBiConstraintStream parent, BiFunction groupKeyAMapping,
            BiFunction groupKeyBMapping) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(groupKeyAMapping, groupKeyBMapping);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractTriConstraintStream parent, TriFunction groupKeyAMapping,
            TriFunction groupKeyBMapping) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(groupKeyAMapping, groupKeyBMapping);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractQuadConstraintStream parent,
            QuadFunction groupKeyAMapping, QuadFunction groupKeyBMapping) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(groupKeyAMapping, groupKeyBMapping);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractUniConstraintStream parent, Function groupKeyMapping,
            UniConstraintCollector collector) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(groupKeyMapping, collector);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractBiConstraintStream parent, BiFunction groupKeyMapping,
            BiConstraintCollector collector) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(groupKeyMapping, collector);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractTriConstraintStream parent, TriFunction groupKeyMapping,
            TriConstraintCollector collector) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(groupKeyMapping, collector);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractQuadConstraintStream parent,
            QuadFunction groupKeyMapping, QuadConstraintCollector collector) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(groupKeyMapping, collector);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractUniConstraintStream parent, UniConstraintCollector collectorA,
            UniConstraintCollector collectorB) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(collectorA, collectorB);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractBiConstraintStream parent, BiConstraintCollector collectorA,
            BiConstraintCollector collectorB) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(collectorA, collectorB);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractTriConstraintStream parent,
            TriConstraintCollector collectorA, TriConstraintCollector collectorB) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(collectorA, collectorB);
    }

    public  DroolsGroupingBiConstraintStream(DroolsConstraintFactory constraintFactory,
            DroolsAbstractQuadConstraintStream parent,
            QuadConstraintCollector collectorA,
            QuadConstraintCollector collectorB) {
        super(constraintFactory, parent.getRetrievalSemantics());
        this.leftHandSide = () -> parent.createLeftHandSide().andGroupBy(collectorA, collectorB);
    }

    @Override
    public boolean guaranteesDistinct() {
        return true;
    }

    @Override
    public BiLeftHandSide createLeftHandSide() {
        return leftHandSide.get();
    }

    @Override
    public String toString() {
        return "BiGroup() with " + getChildStreams().size() + " children";
    }
}