svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.spi / src / main / java / org / gvsig / fmap / dal / feature / spi / DefaultLongList.java @ 44198
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | |
25 | package org.gvsig.fmap.dal.feature.spi; |
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26 | |||
27 | 44166 | jjdelcerro | import java.util.Collections; |
28 | 40435 | jjdelcerro | import java.util.Iterator; |
29 | import java.util.List; |
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30 | |||
31 | /**
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32 | * Default implementation for {@link LongList}<br>
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33 | * <br>
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34 | *
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35 | * <strong>Note:</strong> This class is based on {@link java.util.List}
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36 | */
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37 | public class DefaultLongList implements LongList { |
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38 | |||
39 | private List list = null; |
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40 | |||
41 | public DefaultLongList(List list) { |
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42 | this.list = list;
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43 | } |
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44 | |||
45 | public long getSize() { |
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46 | 44166 | jjdelcerro | if( list==null ) { |
47 | return 0; |
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48 | } |
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49 | return list.size();
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50 | 40435 | jjdelcerro | } |
51 | |||
52 | public boolean isEmpty() { |
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53 | 44166 | jjdelcerro | if( list==null ) { |
54 | return true; |
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55 | } |
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56 | return list.isEmpty();
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57 | 40435 | jjdelcerro | } |
58 | |||
59 | public Iterator iterator() { |
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60 | 44166 | jjdelcerro | if( list==null ) { |
61 | return Collections.emptyIterator(); |
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62 | } |
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63 | return list.iterator();
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64 | 40435 | jjdelcerro | } |
65 | |||
66 | public Iterator iterator(long index) { |
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67 | 44166 | jjdelcerro | if( list==null ) { |
68 | return Collections.emptyIterator(); |
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69 | } |
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70 | if (index > Integer.MAX_VALUE || index < Integer.MIN_VALUE) { |
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71 | throw new IndexOutOfBoundsException(); |
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72 | } |
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73 | return list.listIterator((int) index); |
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74 | 40435 | jjdelcerro | } |
75 | } |