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/*
* Copyright (C) 2012 The Guava Authors
*
* 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.google.common.collect;
import com.google.common.annotations.GwtCompatible;
import java.util.Collection;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Basic implementation of a {@link SortedSetMultimap} with a sorted key set.
*
* This superclass allows {@code TreeMultimap} to override methods to return navigable set and
* map types in non-GWT only, while GWT code will inherit the SortedMap/SortedSet overrides.
*
* @author Louis Wasserman
*/
@GwtCompatible
@ElementTypesAreNonnullByDefault
abstract class AbstractSortedKeySortedSetMultimap<
K extends @Nullable Object, V extends @Nullable Object>
extends AbstractSortedSetMultimap {
AbstractSortedKeySortedSetMultimap(SortedMap> map) {
super(map);
}
@Override
public SortedMap> asMap() {
return (SortedMap>) super.asMap();
}
@Override
SortedMap> backingMap() {
return (SortedMap>) super.backingMap();
}
@Override
public SortedSet keySet() {
return (SortedSet) super.keySet();
}
@Override
Set createKeySet() {
return createMaybeNavigableKeySet();
}
}