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/*
* Copyright (C) 2013 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 shaded.shaded.com.google.common.collect;
import static shaded.shaded.com.google.common.base.Preconditions.checkNotNull;
import shaded.shaded.com.google.common.annotations.GwtCompatible;
import shaded.shaded.com.google.common.base.Objects;
import shaded.shaded.com.google.common.base.Predicate;
import shaded.shaded.com.google.common.base.Predicates;
import shaded.shaded.com.google.j2objc.annotations.Weak;
import java.util.AbstractCollection;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map.Entry;
import javax.annotation.CheckForNull;
import org.checkerframework.checker.nullness.qual.Nullable;
/**
* Implementation for {@link FilteredMultimap#values()}.
*
* @author Louis Wasserman
*/
@GwtCompatible
@ElementTypesAreNonnullByDefault
final class FilteredMultimapValues
extends AbstractCollection {
@Weak private final FilteredMultimap multimap;
FilteredMultimapValues(FilteredMultimap multimap) {
this.multimap = checkNotNull(multimap);
}
@Override
public Iterator iterator() {
return Maps.valueIterator(multimap.entries().iterator());
}
@Override
public boolean contains(@CheckForNull Object o) {
return multimap.containsValue(o);
}
@Override
public int size() {
return multimap.size();
}
@Override
public boolean remove(@CheckForNull Object o) {
Predicate> entryPredicate = multimap.entryPredicate();
for (Iterator> unfilteredItr = multimap.unfiltered().entries().iterator();
unfilteredItr.hasNext(); ) {
Entry entry = unfilteredItr.next();
if (entryPredicate.apply(entry) && Objects.equal(entry.getValue(), o)) {
unfilteredItr.remove();
return true;
}
}
return false;
}
@Override
public boolean removeAll(Collection c) {
return Iterables.removeIf(
multimap.unfiltered().entries(),
// explicit > is required to build with JDK6
Predicates.>and(
multimap.entryPredicate(), Maps.valuePredicateOnEntries(Predicates.in(c))));
}
@Override
public boolean retainAll(Collection c) {
return Iterables.removeIf(
multimap.unfiltered().entries(),
// explicit > is required to build with JDK6
Predicates.>and(
multimap.entryPredicate(),
Maps.valuePredicateOnEntries(Predicates.not(Predicates.in(c)))));
}
@Override
public void clear() {
multimap.clear();
}
}