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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      https://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.collections4;
19  
20  import java.util.Iterator;
21  
22  /**
23   * Defines an iterator that can be reset back to an initial state.
24   * <p>
25   * This interface allows an iterator to be repeatedly reused.
26   * </p>
27   *
28   * @param <E> The type of elements returned by this iterator.
29   * @since 3.0
30   */
31  public interface ResettableIterator<E> extends Iterator<E> {
32  
33      /**
34       * Resets the iterator back to the position at which the iterator was created.
35       */
36      void reset();
37  }