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ImmutableSetMultimapImpl.java
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ImmutableSetMultimapImpl.java
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/*
* Copyright (c) 2019 Goldman Sachs.
* 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.multimap.set;
import java.io.Externalizable;
import java.io.Serializable;
import org.eclipse.collections.api.block.function.Function;
import org.eclipse.collections.api.block.function.Function2;
import org.eclipse.collections.api.block.predicate.Predicate2;
import org.eclipse.collections.api.map.ImmutableMap;
import org.eclipse.collections.api.map.MutableMap;
import org.eclipse.collections.api.multimap.bag.ImmutableBagMultimap;
import org.eclipse.collections.api.multimap.bag.MutableBagMultimap;
import org.eclipse.collections.api.multimap.set.ImmutableSetMultimap;
import org.eclipse.collections.api.multimap.set.MutableSetMultimap;
import org.eclipse.collections.api.set.ImmutableSet;
import org.eclipse.collections.api.set.MutableSet;
import org.eclipse.collections.api.tuple.Pair;
import org.eclipse.collections.impl.factory.Maps;
import org.eclipse.collections.impl.factory.Sets;
import org.eclipse.collections.impl.multimap.AbstractImmutableMultimap;
import org.eclipse.collections.impl.multimap.AbstractMutableMultimap;
import org.eclipse.collections.impl.multimap.ImmutableMultimapSerializationProxy;
import org.eclipse.collections.impl.multimap.bag.HashBagMultimap;
import org.eclipse.collections.impl.utility.Iterate;
/**
* The default ImmutableBagMultimap implementation.
*
* @since 1.0
*/
public final class ImmutableSetMultimapImpl<K, V>
extends AbstractImmutableMultimap<K, V, ImmutableSet<V>>
implements ImmutableSetMultimap<K, V>, Serializable
{
private static final long serialVersionUID = 1L;
public ImmutableSetMultimapImpl(MutableMap<K, ImmutableSet<V>> map)
{
super(map);
}
public ImmutableSetMultimapImpl(ImmutableMap<K, ImmutableSet<V>> map)
{
super(map);
}
@Override
protected ImmutableSet<V> createCollection()
{
return Sets.immutable.empty();
}
@Override
public ImmutableSetMultimap<K, V> newEmpty()
{
return new ImmutableSetMultimapImpl<>(Maps.immutable.with());
}
@Override
public MutableSetMultimap<K, V> toMutable()
{
return new UnifiedSetMultimap<>(this);
}
@Override
public ImmutableSetMultimap<K, V> toImmutable()
{
return this;
}
private Object writeReplace()
{
return new ImmutableSetMultimapSerializationProxy<>(this.map);
}
private static final class ImmutableSetMultimapSerializationProxy<K, V>
extends ImmutableMultimapSerializationProxy<K, V, ImmutableSet<V>> implements Externalizable
{
private static final long serialVersionUID = 1L;
@SuppressWarnings("UnusedDeclaration")
public ImmutableSetMultimapSerializationProxy()
{
// For Externalizable use only
}
private ImmutableSetMultimapSerializationProxy(ImmutableMap<K, ImmutableSet<V>> map)
{
super(map);
}
@Override
protected AbstractMutableMultimap<K, V, MutableSet<V>> createEmptyMutableMultimap()
{
return new UnifiedSetMultimap<>();
}
}
@Override
public ImmutableSetMultimap<K, V> newWith(K key, V value)
{
return (ImmutableSetMultimap<K, V>) super.newWith(key, value);
}
@Override
public ImmutableSetMultimap<K, V> newWithout(Object key, Object value)
{
return (ImmutableSetMultimap<K, V>) super.newWithout(key, value);
}
@Override
public ImmutableSetMultimap<K, V> newWithAll(K key, Iterable<? extends V> values)
{
return (ImmutableSetMultimap<K, V>) super.newWithAll(key, values);
}
@Override
public ImmutableSetMultimap<K, V> newWithoutAll(Object key)
{
return (ImmutableSetMultimap<K, V>) super.newWithoutAll(key);
}
@Override
public ImmutableSetMultimap<V, K> flip()
{
return Iterate.flip(this).toImmutable();
}
@Override
public ImmutableSetMultimap<K, V> selectKeysValues(Predicate2<? super K, ? super V> predicate)
{
return this.selectKeysValues(predicate, UnifiedSetMultimap.newMultimap()).toImmutable();
}
@Override
public ImmutableSetMultimap<K, V> rejectKeysValues(Predicate2<? super K, ? super V> predicate)
{
return this.rejectKeysValues(predicate, UnifiedSetMultimap.newMultimap()).toImmutable();
}
@Override
public ImmutableSetMultimap<K, V> selectKeysMultiValues(Predicate2<? super K, ? super Iterable<V>> predicate)
{
return this.selectKeysMultiValues(predicate, UnifiedSetMultimap.newMultimap()).toImmutable();
}
@Override
public ImmutableSetMultimap<K, V> rejectKeysMultiValues(Predicate2<? super K, ? super Iterable<V>> predicate)
{
return this.rejectKeysMultiValues(predicate, UnifiedSetMultimap.newMultimap()).toImmutable();
}
@Override
public <K2, V2> ImmutableBagMultimap<K2, V2> collectKeysValues(Function2<? super K, ? super V, Pair<K2, V2>> function)
{
return this.collectKeysValues(function, HashBagMultimap.newMultimap()).toImmutable();
}
@Override
public <K2, V2> ImmutableBagMultimap<K2, V2> collectKeyMultiValues(Function<? super K, ? extends K2> keyFunction, Function<? super V, ? extends V2> valueFunction)
{
MutableBagMultimap<K2, V2> mutableMultimap = this.collectKeyMultiValues(keyFunction, valueFunction, HashBagMultimap.newMultimap());
return mutableMultimap.toImmutable();
}
@Override
public <V2> ImmutableBagMultimap<K, V2> collectValues(Function<? super V, ? extends V2> function)
{
return this.collectValues(function, HashBagMultimap.<K, V2>newMultimap()).toImmutable();
}
}