| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.collections4.iterators; |
| |
| import org.apache.commons.collections4.OrderedMapIterator; |
| import org.apache.commons.collections4.ResettableIterator; |
| |
| /** |
| * Provides an implementation of an empty ordered map iterator. |
| * |
| * @param <K> the type of keys |
| * @param <V> the type of mapped values |
| * @since 3.1 |
| */ |
| public class EmptyOrderedMapIterator<K, V> extends AbstractEmptyMapIterator<K, V> |
| implements OrderedMapIterator<K, V>, ResettableIterator<K> { |
| |
| /** |
| * Singleton instance of the iterator. |
| * @since 3.1 |
| */ |
| @SuppressWarnings("rawtypes") |
| public static final OrderedMapIterator INSTANCE = new EmptyOrderedMapIterator<>(); |
| |
| /** |
| * Get a typed instance of the iterator. |
| * @param <K> the key type |
| * @param <V> the value type |
| * @return {@link OrderedMapIterator}<K, V> |
| */ |
| public static <K, V> OrderedMapIterator<K, V> emptyOrderedMapIterator() { |
| return INSTANCE; |
| } |
| |
| /** |
| * Constructor. |
| */ |
| protected EmptyOrderedMapIterator() { |
| } |
| |
| } |