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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 | * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a> |
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27 | * @version $Id: EnumerationIterator.java,v 1.3 2004/02/28 13:45:21 yoavs Exp $ |
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28 | */ |
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29 | public class EnumerationIterator implements Iterator |
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30 | { |
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31 | /** |
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32 | * The enumeration to iterate. |
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33 | */ |
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34 | 0 | private Enumeration enum = null; |
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 enum The Enumeration to wrap. |
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41 | */ |
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42 | public EnumerationIterator( Enumeration enum) |
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43 | 0 | { |
44 | 0 | this.enum = enum; |
45 | 0 | } |
46 | ||
47 | /** |
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48 | * Move to next element in the array. |
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49 | * |
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50 | * @return The next object in the array. |
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51 | */ |
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52 | public Object next() |
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53 | { |
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54 | 0 | return enum.nextElement(); |
55 | } |
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56 | ||
57 | /** |
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58 | * Check to see if there is another element in the array. |
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59 | * |
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60 | * @return Whether there is another element. |
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61 | */ |
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62 | public boolean hasNext() |
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63 | { |
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64 | 0 | return enum.hasMoreElements(); |
65 | } |
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66 | ||
67 | /** |
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68 | * Unimplemented. No analogy in Enumeration |
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69 | */ |
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70 | public void remove() |
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71 | { |
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72 | // not implemented |
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73 | 0 | } |
74 | ||
75 | } |
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