Java Iterator from toIterator(Enumeration enumeration)

Description

Adapt an enumeration to an iterator.

License

Apache License

Parameter

Parameter	Description
enumeration	the enumeration

Return

the iterator

Declaration

public static <E> Iterator<E> toIterator(Enumeration<E> enumeration) 

Method Source Code

//package com.java2s;
/**//from ww w  .  ja v a 2  s .  c o m
 * Copyright 2016 benjobs
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.
 */

import java.util.*;

public class Main {
    /**
     * Adapt an enumeration to an iterator.
     * @param enumeration the enumeration
     * @return the iterator
     */
    public static <E> Iterator<E> toIterator(Enumeration<E> enumeration) {
        @SuppressWarnings("hiding")
        class EnumerationIterator<E> implements Iterator<E> {
            private Enumeration<E> enumeration;

            public EnumerationIterator(Enumeration<E> enumeration) {
                this.enumeration = enumeration;
            }

            public boolean hasNext() {
                return this.enumeration.hasMoreElements();
            }

            public E next() {
                return this.enumeration.nextElement();
            }

            public void remove() throws UnsupportedOperationException {
                throw new UnsupportedOperationException("Not supported");
            }
        }
        return new EnumerationIterator<E>(enumeration);
    }
}

Related

1. getPersistentKeysIterator(HashMap hashMap)
2. getSigLinePastOtherAnnotations(String selfCmprurrentLine, Iterator line_itr)
3. getSomeElements(Iterator iterator, int limit)
4. getSubList(Iterator iterator, int startIndex, int numberOfItems)
5. getTypedIterator(Iterator it, Class clz)