svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / feature / impl / featureset / OrderedIterator.java @ 40435
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1 | 40435 | jjdelcerro | package org.gvsig.fmap.dal.feature.impl.featureset; |
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2 | |||
3 | import java.util.ArrayList; |
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4 | import java.util.Collections; |
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5 | import java.util.Iterator; |
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6 | import java.util.List; |
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7 | |||
8 | import org.gvsig.fmap.dal.exception.DataException; |
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9 | import org.gvsig.tools.dispose.DisposableIterator; |
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10 | import org.gvsig.fmap.dal.feature.Feature; |
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11 | import org.gvsig.fmap.dal.feature.impl.DefaultFeature; |
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12 | import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
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13 | import org.gvsig.tools.exception.BaseException; |
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14 | |||
15 | public class OrderedIterator extends DefaultIterator { |
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16 | |||
17 | protected Feature lastFeature = null; |
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18 | |||
19 | OrderedIterator(DefaultFeatureSet featureSet, Iterator iterator, long index) { |
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20 | super(featureSet);
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21 | // FIXME QUE PASA CON SIZE > Integer.MAX_VALUE ?????
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22 | if (featureSet.orderedData == null) { |
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23 | List data = new ArrayList(); |
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24 | Object item;
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25 | while (iterator.hasNext()) {
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26 | item = iterator.next(); |
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27 | if (item instanceof DefaultFeature) { |
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28 | data.add(((DefaultFeature) item).getData()); |
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29 | } else {
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30 | data.add(item); |
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31 | } |
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32 | } |
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33 | Collections.sort(data, new FeatureProviderComparator(featureSet.store, |
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34 | featureSet.query.getOrder())); |
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35 | featureSet.orderedData = data; |
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36 | } |
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37 | if (iterator instanceof DisposableIterator) { |
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38 | ((DisposableIterator) iterator).dispose(); |
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39 | } |
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40 | iterator = null;
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41 | |||
42 | if (index < Integer.MAX_VALUE) { |
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43 | this.iterator = featureSet.orderedData.listIterator((int) index); |
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44 | } else {
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45 | this.iterator = featureSet.orderedData.iterator();
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46 | this.skypto(index);
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47 | } |
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48 | } |
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49 | |||
50 | public OrderedIterator(DefaultFeatureSet featureSet, long index) { |
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51 | super(featureSet);
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52 | if (index < Integer.MAX_VALUE) { |
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53 | this.iterator = featureSet.orderedData.listIterator((int) index); |
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54 | } else {
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55 | this.iterator = featureSet.orderedData.iterator();
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56 | this.skypto(index);
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57 | } |
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58 | } |
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59 | |||
60 | public void remove() { |
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61 | super.remove();
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62 | this.iterator.remove();
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63 | } |
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64 | |||
65 | protected DefaultFeature createFeature(FeatureProvider fData)
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66 | throws DataException {
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67 | fData.setNew(false);
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68 | return new DefaultFeature(fset.store, fData); |
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69 | |||
70 | } |
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71 | |||
72 | protected void doDispose() throws BaseException { |
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73 | super.doDispose();
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74 | lastFeature = null;
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75 | } |
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76 | } |