VCollections.src.org.violetlib.collections.impl.Impl Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of vcollections Show documentation

Java Immutable Collections

The newest version!

/*
 * Copyright (c) 2023 Alan Snyder.
 * All rights reserved.
 *
 * You may not use, copy or modify this file, except in compliance with the license agreement. For details see
 * accompanying license terms.
 */

package org.violetlib.collections.impl;

import java.util.Comparator;
import java.util.Map;

import org.violetlib.collections.*;

import org.jetbrains.annotations.*;
import org.violetlib.annotations.NoInstances;

/**

*/

public final @NoInstances class Impl
{
    private Impl()
    {
        throw new AssertionError("Impl may not be instantiated");
    }

    public static  @NotNull IList getEmptyList()
    {
        return EmptyListImpl.empty();
    }

    public static  @NotNull IList getIndexableEmptyList()
    {
        return SimpleList.EMPTY;
    }

    public static  @NotNull ICollection concatenate(@NotNull IList> sources)
    {
        return ICollectionSequence.create(sources);
    }

    public static  @NotNull ISet getEmptySet()
    {
        return SimpleSet.empty();
    }

    public static  @NotNull ISet createSet(@NotNull Iterable values)
      throws IllegalArgumentException
    {
        return SimpleSet.collect(values);
    }

    public static  @NotNull IIterator concatenateIterators(@NotNull IList> sources)
    {
        return SimpleCompositeIterator.create(IList.cast(sources));
    }

    @SafeVarargs
    public static  @NotNull ISet setOf(@NotNull V... elements)
      throws IllegalArgumentException
    {
        return SimpleSet.create(elements);
    }

    public static  @NotNull SetBuilder getSetBuilder()
    {
        return SetBuilderImpl.create();
    }

    public static  @NotNull SetBuilder getOrderedSetBuilder()
    {
        return OrderedSetBuilderImpl.create();
    }

    public static @NotNull Comparator