Example usage for java.util.stream DoubleStream builder

Introduction

In this page you can find the example usage for java.util.stream DoubleStream builder.

Prototype

public static Builder builder() 

Source Link

Document

Returns a builder for a DoubleStream .

Usage

From source file:Main.java

public static void main(String[] args) {
    DoubleStream.Builder b = DoubleStream.builder();
    b.add(1.1).add(2.2).add(3.3).add(4.4);

    b.build().forEach(System.out::println);
}

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From source file:Main.java

public static void main(String[] args) {
    DoubleStream.Builder b = DoubleStream.builder();
    b.accept(1.2);//from   www  . j  a  va 2 s  .co  m
    b.accept(1.2);
    b.accept(1.2);
    DoubleStream d = b.build();
    d.forEach(System.out::println);
}

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From source file:Main.java

public static void main(String[] args) {
    DoubleStream.Builder b = DoubleStream.builder();
    b.accept(1.1);/*ww  w . ja  va2  s .c  o  m*/
    b.accept(2.2);
    b.accept(3.3);
    b.accept(4.4);

    b.build().forEach(System.out::println);
}

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From source file:org.jamocha.rating.fraj.RatingProvider.java

/**
 * dnrating (38)/*from  ww w  . j av a2s  . co  m*/
 *
 * @param statisticsProvider
 * @param inputComponent
 * @param joinOrder
 * @param positiveExistentialComponents
 * @param negativeExistentialComponents
 * @param pathToPreNetworkComponents
 * @param xOverUX
 * @return
 */
private double joinSize(final StatisticsProvider statisticsProvider, final Set<PathFilterList> inputComponent,
        final List<Pair<List<Set<PathFilterList>>, List<PathFilter>>> joinOrder,
        final Set<Set<PathFilterList>> positiveExistentialComponents,
        final Set<Set<PathFilterList>> negativeExistentialComponents,
        final Map<Path, Set<PathFilterList>> pathToPreNetworkComponents, final double xOverUX) {
    final double[] jsfs = statisticsProvider.getAllJSFs(inputComponent, joinOrder, pathToPreNetworkComponents);
    // dnrating (35)
    final double sum;
    {
        final Builder values = DoubleStream.builder();
        int i = 0;
        for (final Pair<List<Set<PathFilterList>>, List<PathFilter>> element : joinOrder) {
            assert i < jsfs.length;
            final List<Set<PathFilterList>> components = element.getLeft();
            for (final Set<PathFilterList> component : components) {
                if (positiveExistentialComponents.contains(component)) {
                    values.accept(statisticsProvider.getData(component).getRowCount() * (1 - jsfs[i]));
                } else if (negativeExistentialComponents.contains(component)) {
                    values.accept(statisticsProvider.getData(component).getRowCount() * jsfs[i]);
                }
            }
            ++i;
        }
        sum = values.build().sum();
    }

    final Builder sizes = DoubleStream.builder();
    int i = 0;
    for (final Pair<List<Set<PathFilterList>>, List<PathFilter>> element : joinOrder) {
        final List<Set<PathFilterList>> components = element.getLeft();
        final Iterator<Set<PathFilterList>> iterator = components.iterator();
        final Set<PathFilterList> component = iterator.next();
        if (positiveExistentialComponents.contains(component)) {
            sizes.accept(Math.pow(xOverUX,
                    statisticsProvider.getData(component).getRowCount() * (1 - jsfs[i]) / sum));
        } else if (negativeExistentialComponents.contains(component)) {
            sizes.accept(
                    Math.pow(xOverUX, statisticsProvider.getData(component).getRowCount() * jsfs[i] / sum));
        } else {
            sizes.accept(jsfs[i]);
            sizes.accept(statisticsProvider.getData(component).getRowCount());
            while (iterator.hasNext()) {
                sizes.accept(statisticsProvider.getData(iterator.next()).getRowCount());
            }
        }
        ++i;
    }
    return sizes.build().sum();
}

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From source file:org.jamocha.rating.fraj.RatingProvider.java

private double costPosInsVarII(final StatisticsProvider statisticsProvider,
        final Set<PathFilterList> inputComponent,
        final List<Pair<List<Set<PathFilterList>>, List<PathFilter>>> joinOrder,
        final Set<Set<PathFilterList>> regularComponents,
        final Map<Path, Set<PathFilterList>> pathToPreNetworkComponents) {
    final double[] jsfs = statisticsProvider.getAllJSFs(inputComponent, joinOrder, pathToPreNetworkComponents);
    assert jsfs.length == joinOrder.size();
    final Builder costs = DoubleStream.builder();
    double size = 1.0;
    int i = 0;//w  w  w .  j av a 2  s.  c  o m
    for (final Pair<List<Set<PathFilterList>>, List<PathFilter>> pair : joinOrder) {
        final List<Set<PathFilterList>> components = pair.getLeft();
        final Set<PathFilterList> component = components.get(0);
        if (regularComponents.contains(component)) {
            if (component.size() > 1) {
                final int lastIndex = components.size() - 1;
                for (int ci = 0; ci < lastIndex; ++ci) {
                    costs.accept(
                            jc(statisticsProvider, 1.0, statisticsProvider.getData(components.get(ci)), size));
                }
                costs.accept(jc(statisticsProvider, jsfs[i],
                        statisticsProvider.getData(components.get(lastIndex)), size));
            } else {
                costs.accept(jc(statisticsProvider, jsfs[i], statisticsProvider.getData(component), size));
            }
            size *= statisticsProvider.getData(component).getRowCount() * jsfs[i];
        } else {
            costs.accept(jc(
                    statisticsProvider, statisticsProvider.getJSF(regularComponents, component,
                            pair.getRight().get(0), pathToPreNetworkComponents),
                    statisticsProvider.getData(component), size));
        }
        ++i;
    }
    return costs.add(size).build().sum();
}

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From source file:org.jamocha.rating.fraj.RatingProvider.java

private double costNegDelVarII(final StatisticsProvider statisticsProvider,
        final Set<PathFilterList> inputComponent,
        final List<Pair<List<Set<PathFilterList>>, List<PathFilter>>> joinOrder,
        final Map<Path, Set<PathFilterList>> pathToPreNetworkComponents) {
    final double[] jsfs = statisticsProvider.getAllJSFs(inputComponent, joinOrder, pathToPreNetworkComponents);
    assert jsfs.length == joinOrder.size();
    final Builder costs = DoubleStream.builder();
    double size = 1.0;
    int i = 0;//w  ww. j  ava 2s .co m
    for (final Pair<List<Set<PathFilterList>>, List<PathFilter>> pair : joinOrder) {
        final List<Set<PathFilterList>> components = pair.getLeft();
        final Set<PathFilterList> component = components.get(0);
        if (component.size() > 1) {
            final int lastIndex = components.size() - 1;
            for (int ci = 0; ci < lastIndex; ++ci) {
                costs.accept(jc(statisticsProvider, 1.0, statisticsProvider.getData(components.get(ci)), size));
            }
            costs.accept(jc(statisticsProvider, jsfs[i], statisticsProvider.getData(components.get(lastIndex)),
                    size));
        } else {
            costs.accept(jc(statisticsProvider, jsfs[i], statisticsProvider.getData(component), size));
        }
        size *= statisticsProvider.getData(component).getRowCount() * jsfs[i];
        ++i;
    }
    return costs.add(size).build().sum();
}

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