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/*
* Copyright (c) 2022 Goldman Sachs and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompany this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.eclipse.collections.impl.factory.primitive;
import org.eclipse.collections.api.LazyIterable;
import org.eclipse.collections.api.block.function.primitive.IntIntToObjectFunction;
import org.eclipse.collections.api.factory.set.primitive.ImmutableIntSetFactory;
import org.eclipse.collections.api.factory.set.primitive.MutableIntSetFactory;
import org.eclipse.collections.api.set.primitive.IntSet;
import org.eclipse.collections.impl.set.immutable.primitive.ImmutableIntSetFactoryImpl;
import org.eclipse.collections.impl.set.mutable.primitive.MutableIntSetFactoryImpl;
import org.eclipse.collections.api.tuple.primitive.IntIntPair;
import org.eclipse.collections.impl.tuple.primitive.PrimitiveTuples;
/**
* IntSets is a static utility for creating {@link ImmutableIntSetFactory} and {@link MutableIntSetFactory}.
* This file was automatically generated from template file primitiveSets.stg.
*
* @since 3.2.
*/
@SuppressWarnings("ConstantNamingConvention")
public final class IntSets
{
public static final ImmutableIntSetFactory immutable = ImmutableIntSetFactoryImpl.INSTANCE;
public static final MutableIntSetFactory mutable = MutableIntSetFactoryImpl.INSTANCE;
private IntSets()
{
throw new AssertionError("Suppress default constructor for noninstantiability");
}
/**
* @since 9.0
*/
public static LazyIterable cartesianProduct(IntSet set1, IntSet set2)
{
return IntSets.cartesianProduct(set1, set2, PrimitiveTuples::pair);
}
/**
* @since 9.0
*/
public static LazyIterable cartesianProduct(IntSet set1, IntSet set2, IntIntToObjectFunction function)
{
return set1.asLazy()
.flatCollect(first ->
set2.asLazy()
.collect(second -> function.value(first, second)));
}
}