java.util.stream.Collectors Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dragome-js-jre Show documentation

Dragome SDK module: js-jre

The newest version!

package java.util.stream;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.function.BiConsumer;
import java.util.function.BinaryOperator;
import java.util.function.Function;
import java.util.function.Supplier;

public final class Collectors
{
	private static  Function castingIdentity()
	{
		return i -> (R) i;
	}

	static class CollectorImpl implements Collector
	{
		private final Supplier supplier;
		private final BiConsumer accumulator;
		private final BinaryOperator combiner;
		private final Function finisher;
		private final Set characteristics;

		CollectorImpl(Supplier supplier, BiConsumer accumulator, BinaryOperator combiner, Function finisher, Set characteristics)
		{
			this.supplier= supplier;
			this.accumulator= accumulator;
			this.combiner= combiner;
			this.finisher= finisher;
			this.characteristics= characteristics;
		}

		CollectorImpl(Supplier supplier, BiConsumer accumulator, BinaryOperator combiner, Set characteristics)
		{
			this(supplier, accumulator, combiner, castingIdentity(), characteristics);
		}

		public BiConsumer accumulator()
		{
			return accumulator;
		}

		public Supplier supplier()
		{
			return supplier;
		}

		public BinaryOperator combiner()
		{
			return combiner;
		}

		public Function finisher()
		{
			return finisher;
		}

		public Set characteristics()
		{
			return characteristics;
		}
	}

	public static  Collector> toList()
	{
		return new Collector>()
		{
			List