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GS Collections is a collections framework for Java. It has JDK-compatible List, Set and Map
implementations with a rich API and set of utility classes that work with any JDK compatible Collections,
Arrays, Maps or Strings. The iteration protocol was inspired by the Smalltalk collection framework.
/*
* Copyright 2014 Goldman Sachs.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gs.collections.impl.factory;
import java.util.Comparator;
import com.gs.collections.api.bag.ImmutableBag;
import com.gs.collections.api.list.ImmutableList;
import com.gs.collections.api.multimap.bag.ImmutableBagMultimap;
import com.gs.collections.api.multimap.bag.MutableBagMultimap;
import com.gs.collections.api.multimap.list.ImmutableListMultimap;
import com.gs.collections.api.multimap.list.MutableListMultimap;
import com.gs.collections.api.multimap.set.ImmutableSetMultimap;
import com.gs.collections.api.multimap.set.MutableSetMultimap;
import com.gs.collections.api.multimap.sortedset.ImmutableSortedSetMultimap;
import com.gs.collections.api.multimap.sortedset.MutableSortedSetMultimap;
import com.gs.collections.api.set.ImmutableSet;
import com.gs.collections.api.set.sorted.ImmutableSortedSet;
import com.gs.collections.impl.multimap.bag.HashBagMultimap;
import com.gs.collections.impl.multimap.bag.ImmutableBagMultimapImpl;
import com.gs.collections.impl.multimap.list.FastListMultimap;
import com.gs.collections.impl.multimap.list.ImmutableListMultimapImpl;
import com.gs.collections.impl.multimap.set.ImmutableSetMultimapImpl;
import com.gs.collections.impl.multimap.set.UnifiedSetMultimap;
import com.gs.collections.impl.multimap.set.sorted.ImmutableSortedSetMultimapImpl;
import com.gs.collections.impl.multimap.set.sorted.TreeSortedSetMultimap;
@SuppressWarnings("ConstantNamingConvention")
public final class Multimaps
{
public static final ImmutableMultimaps immutable = new ImmutableMultimaps();
public static final MutableMultimaps mutable = new MutableMultimaps();
private Multimaps()
{
throw new AssertionError("Suppress default constructor for noninstantiability");
}
@SuppressWarnings("PublicField")
public static final class ImmutableMultimaps
{
public final ImmutableListMultimapFactory list = new ImmutableListMultimapFactory();
public final ImmutableSetMultimapFactory set = new ImmutableSetMultimapFactory();
public final ImmutableSortedSetMultimapFactory sortedSet = new ImmutableSortedSetMultimapFactory();
public final ImmutableBagMultimapFactory bag = new ImmutableBagMultimapFactory();
private ImmutableMultimaps()
{
}
public static final class ImmutableListMultimapFactory
{
public static final ImmutableListMultimap EMPTY = new ImmutableListMultimapImpl(Maps.immutable.>with());
private ImmutableListMultimapFactory()
{
}
public ImmutableListMultimap empty()
{
return (ImmutableListMultimap) EMPTY;
}
public ImmutableListMultimap with()
{
return this.empty();
}
public ImmutableListMultimap with(K key, V value)
{
return new ImmutableListMultimapImpl(Maps.immutable.with(key, Lists.immutable.with(value)));
}
public ImmutableListMultimap with(K key1, V value1, K key2, V value2)
{
FastListMultimap fastListMultimap = FastListMultimap.newMultimap();
fastListMultimap.put(key1, value1);
fastListMultimap.put(key2, value2);
return fastListMultimap.toImmutable();
}
public ImmutableListMultimap with(K key1, V value1, K key2, V value2, K key3, V value3)
{
FastListMultimap fastListMultimap = FastListMultimap.newMultimap();
fastListMultimap.put(key1, value1);
fastListMultimap.put(key2, value2);
fastListMultimap.put(key3, value3);
return fastListMultimap.toImmutable();
}
}
public static final class ImmutableSetMultimapFactory
{
public static final ImmutableSetMultimap EMPTY = new ImmutableSetMultimapImpl(Maps.immutable.>with());
private ImmutableSetMultimapFactory()
{
}
public ImmutableSetMultimap empty()
{
return (ImmutableSetMultimap) EMPTY;
}
public ImmutableSetMultimap with()
{
return this.empty();
}
public ImmutableSetMultimap with(K key, V value)
{
return new ImmutableSetMultimapImpl(Maps.immutable.with(key, Sets.immutable.with(value)));
}
public ImmutableSetMultimap with(K key1, V value1, K key2, V value2)
{
UnifiedSetMultimap unifiedSetMultimap = UnifiedSetMultimap.newMultimap();
unifiedSetMultimap.put(key1, value1);
unifiedSetMultimap.put(key2, value2);
return unifiedSetMultimap.toImmutable();
}
public ImmutableSetMultimap with(K key1, V value1, K key2, V value2, K key3, V value3)
{
UnifiedSetMultimap unifiedSetMultimap = UnifiedSetMultimap.newMultimap();
unifiedSetMultimap.put(key1, value1);
unifiedSetMultimap.put(key2, value2);
unifiedSetMultimap.put(key3, value3);
return unifiedSetMultimap.toImmutable();
}
}
public static final class ImmutableSortedSetMultimapFactory
{
private ImmutableSortedSetMultimapFactory()
{
}
public ImmutableSortedSetMultimap with(Comparator comparator)
{
return new ImmutableSortedSetMultimapImpl(Maps.immutable.>with(), comparator);
}
public ImmutableSortedSetMultimap with(Comparator comparator, K key, V value)
{
return new ImmutableSortedSetMultimapImpl(Maps.immutable.with(key, SortedSets.immutable.with(comparator, value)), comparator);
}
public ImmutableSortedSetMultimap with(Comparator comparator, K key1, V value1, K key2, V value2)
{
TreeSortedSetMultimap treeSortedSetMultimap = TreeSortedSetMultimap.newMultimap(comparator);
treeSortedSetMultimap.put(key1, value1);
treeSortedSetMultimap.put(key2, value2);
return treeSortedSetMultimap.toImmutable();
}
public ImmutableSortedSetMultimap with(Comparator comparator, K key1, V value1, K key2, V value2, K key3, V value3)
{
TreeSortedSetMultimap treeSortedSetMultimap = TreeSortedSetMultimap.newMultimap(comparator);
treeSortedSetMultimap.put(key1, value1);
treeSortedSetMultimap.put(key2, value2);
treeSortedSetMultimap.put(key3, value3);
return treeSortedSetMultimap.toImmutable();
}
}
public static final class ImmutableBagMultimapFactory
{
public static final ImmutableBagMultimap EMPTY = new ImmutableBagMultimapImpl(Maps.immutable.>with());
private ImmutableBagMultimapFactory()
{
}
public ImmutableBagMultimap empty()
{
return (ImmutableBagMultimap) EMPTY;
}
public ImmutableBagMultimap with()
{
return this.empty();
}
public ImmutableBagMultimap with(K key, V value)
{
return new ImmutableBagMultimapImpl(Maps.immutable.with(key, Bags.immutable.with(value)));
}
public ImmutableBagMultimap with(K key1, V value1, K key2, V value2)
{
HashBagMultimap hashBagMultimap = HashBagMultimap.newMultimap();
hashBagMultimap.put(key1, value1);
hashBagMultimap.put(key2, value2);
return hashBagMultimap.toImmutable();
}
public ImmutableBagMultimap with(K key1, V value1, K key2, V value2, K key3, V value3)
{
HashBagMultimap hashBagMultimap = HashBagMultimap.newMultimap();
hashBagMultimap.put(key1, value1);
hashBagMultimap.put(key2, value2);
hashBagMultimap.put(key3, value3);
return hashBagMultimap.toImmutable();
}
}
}
@SuppressWarnings("PublicField")
public static final class MutableMultimaps
{
public final MutableListMultimapFactory list = new MutableListMultimapFactory();
public final MutableSetMultimapFactory set = new MutableSetMultimapFactory();
public final MutableSortedSetMultimapFactory sortedSet = new MutableSortedSetMultimapFactory();
public final MutableBagMultimapFactory bag = new MutableBagMultimapFactory();
private MutableMultimaps()
{
}
public static final class MutableListMultimapFactory
{
private MutableListMultimapFactory()
{
}
public MutableListMultimap empty()
{
return FastListMultimap.newMultimap();
}
public MutableListMultimap with()
{
return this.empty();
}
public MutableListMultimap with(K key, V value)
{
FastListMultimap fastListMultimap = FastListMultimap.newMultimap();
fastListMultimap.put(key, value);
return fastListMultimap;
}
public MutableListMultimap with(K key1, V value1, K key2, V value2)
{
FastListMultimap fastListMultimap = FastListMultimap.newMultimap();
fastListMultimap.put(key1, value1);
fastListMultimap.put(key2, value2);
return fastListMultimap;
}
public MutableListMultimap with(K key1, V value1, K key2, V value2, K key3, V value3)
{
FastListMultimap fastListMultimap = FastListMultimap.newMultimap();
fastListMultimap.put(key1, value1);
fastListMultimap.put(key2, value2);
fastListMultimap.put(key3, value3);
return fastListMultimap;
}
}
public static final class MutableSetMultimapFactory
{
private MutableSetMultimapFactory()
{
}
public MutableSetMultimap empty()
{
return UnifiedSetMultimap.newMultimap();
}
public MutableSetMultimap with()
{
return this.empty();
}
public MutableSetMultimap with(K key, V value)
{
UnifiedSetMultimap unifiedSetMultimap = UnifiedSetMultimap.newMultimap();
unifiedSetMultimap.put(key, value);
return unifiedSetMultimap;
}
public MutableSetMultimap with(K key1, V value1, K key2, V value2)
{
UnifiedSetMultimap unifiedSetMultimap = UnifiedSetMultimap.newMultimap();
unifiedSetMultimap.put(key1, value1);
unifiedSetMultimap.put(key2, value2);
return unifiedSetMultimap;
}
public MutableSetMultimap with(K key1, V value1, K key2, V value2, K key3, V value3)
{
UnifiedSetMultimap unifiedSetMultimap = UnifiedSetMultimap.newMultimap();
unifiedSetMultimap.put(key1, value1);
unifiedSetMultimap.put(key2, value2);
unifiedSetMultimap.put(key3, value3);
return unifiedSetMultimap;
}
}
public static final class MutableSortedSetMultimapFactory
{
private MutableSortedSetMultimapFactory()
{
}
public MutableSortedSetMultimap with(Comparator comparator)
{
return TreeSortedSetMultimap.newMultimap(comparator);
}
public MutableSortedSetMultimap with(Comparator comparator, K key, V value)
{
TreeSortedSetMultimap treeSortedSetMultimap = TreeSortedSetMultimap.newMultimap(comparator);
treeSortedSetMultimap.put(key, value);
return treeSortedSetMultimap;
}
public MutableSortedSetMultimap with(Comparator comparator, K key1, V value1, K key2, V value2)
{
TreeSortedSetMultimap treeSortedSetMultimap = TreeSortedSetMultimap.newMultimap(comparator);
treeSortedSetMultimap.put(key1, value1);
treeSortedSetMultimap.put(key2, value2);
return treeSortedSetMultimap;
}
public MutableSortedSetMultimap with(Comparator comparator, K key1, V value1, K key2, V value2, K key3, V value3)
{
TreeSortedSetMultimap treeSortedSetMultimap = TreeSortedSetMultimap.newMultimap(comparator);
treeSortedSetMultimap.put(key1, value1);
treeSortedSetMultimap.put(key2, value2);
treeSortedSetMultimap.put(key3, value3);
return treeSortedSetMultimap;
}
}
public static final class MutableBagMultimapFactory
{
private MutableBagMultimapFactory()
{
}
public MutableBagMultimap empty()
{
return HashBagMultimap.newMultimap();
}
public MutableBagMultimap with()
{
return this.empty();
}
public MutableBagMultimap with(K key, V value)
{
HashBagMultimap hashBagMultimap = HashBagMultimap.newMultimap();
hashBagMultimap.put(key, value);
return hashBagMultimap;
}
public MutableBagMultimap with(K key1, V value1, K key2, V value2)
{
HashBagMultimap hashBagMultimap = HashBagMultimap.newMultimap();
hashBagMultimap.put(key1, value1);
hashBagMultimap.put(key2, value2);
return hashBagMultimap;
}
public MutableBagMultimap with(K key1, V value1, K key2, V value2, K key3, V value3)
{
HashBagMultimap hashBagMultimap = HashBagMultimap.newMultimap();
hashBagMultimap.put(key1, value1);
hashBagMultimap.put(key2, value2);
hashBagMultimap.put(key3, value3);
return hashBagMultimap;
}
}
}
}
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