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package org.javimmutable.collections.iterators;

import org.javimmutable.collections.SplitableIterator;

import javax.annotation.Nonnull;
import java.util.NoSuchElementException;
import java.util.Spliterator;
import java.util.Spliterators;

public class EmptyIterator
    implements SplitableIterator
{
    private static final SplitableIterator INSTANCE = new EmptyIterator();

    @SuppressWarnings("unchecked")
    public static  SplitableIterator of()
    {
        return INSTANCE;
    }

    @Override
    public boolean hasNext()
    {
        return false;
    }

    @Override
    public T next()
    {
        throw new NoSuchElementException();
    }

    @Nonnull
    @Override
    public Spliterator spliterator(int characteristics)
    {
        return Spliterators.emptySpliterator();
    }
}