2 * (C) Copyright 2016 Pantheon Technologies, s.r.o. and others.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.opendaylight.yangtools.triemap;
18 import java.util.Iterator;
19 import java.util.Spliterator;
22 * A mutable view of a TrieMap's key set.
24 * @author Robert Varga
26 * @param <K> the type of keys
28 final class MutableKeySet<K> extends AbstractKeySet<K> {
29 MutableKeySet(final MutableTrieMap<K, ?> map) {
34 public Iterator<K> iterator() {
35 final AbstractIterator<K, ?> itr = map().iterator();
36 return new Iterator<K>() {
38 public boolean hasNext() {
44 return itr.next().getKey();
48 public void remove() {
60 @SuppressWarnings("checkstyle:parameterName")
61 public boolean remove(final Object o) {
62 return map().remove(o) != null;
66 int spliteratorCharacteristics() {
67 return Spliterator.DISTINCT | Spliterator.CONCURRENT | Spliterator.NONNULL;