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org.apache.commons.jexl.util.EnumerationIterator |
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1 | /* |
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2 | * Copyright 1999-2001,2004 The Apache Software Foundation. |
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3 | * |
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4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 | * you may not use this file except in compliance with the License. |
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6 | * You may obtain a copy of the License at |
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7 | * |
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8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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9 | * |
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10 | * Unless required by applicable law or agreed to in writing, software |
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11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 | * See the License for the specific language governing permissions and |
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14 | * limitations under the License. |
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15 | */ |
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16 | ||
17 | package org.apache.commons.jexl.util; |
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18 | ||
19 | ||
20 | import java.util.Iterator; |
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21 | import java.util.Enumeration; |
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22 | ||
23 | /** |
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24 | * An Iterator wrapper for an Enumeration. |
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25 | * |
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26 | * @since 1.0 |
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27 | * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a> |
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28 | * @version $Id: EnumerationIterator.java 398330 2006-04-30 12:52:35Z dion $ |
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29 | */ |
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30 | public class EnumerationIterator implements Iterator { |
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31 | /** |
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32 | * The enumeration to iterate over. |
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33 | */ |
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34 | private final Enumeration enumeration; |
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35 | ||
36 | /** |
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37 | * Creates a new iteratorwrapper instance for the specified |
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38 | * Enumeration. |
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39 | * |
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40 | * @param enumer The Enumeration to wrap. |
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41 | */ |
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42 | 1 | public EnumerationIterator(Enumeration enumer) { |
43 | 1 | enumeration = enumer; |
44 | 1 | } |
45 | ||
46 | /** |
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47 | * Move to next element in the array. |
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48 | * |
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49 | * @return The next object in the array. |
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50 | */ |
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51 | public Object next() { |
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52 | 2 | return enumeration.nextElement(); |
53 | } |
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54 | ||
55 | /** |
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56 | * Check to see if there is another element in the array. |
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57 | * |
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58 | * @return Whether there is another element. |
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59 | */ |
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60 | public boolean hasNext() { |
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61 | 3 | return enumeration.hasMoreElements(); |
62 | } |
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63 | ||
64 | /** |
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65 | * Unimplemented. No analogy in Enumeration |
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66 | */ |
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67 | public void remove() { |
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68 | // not implemented |
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69 | 0 | } |
70 | ||
71 | } |
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