svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.api / src / main / java / org / gvsig / fmap / dal / feature / FeatureStoreTransforms.java @ 40435
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1 | 40435 | jjdelcerro | package org.gvsig.fmap.dal.feature; |
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2 | |||
3 | import java.util.Iterator; |
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4 | |||
5 | import org.gvsig.fmap.dal.exception.DataException; |
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6 | import org.gvsig.tools.lang.Cloneable; |
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7 | |||
8 | /**
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9 | * This interface represents a container for store transforms.
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10 | *
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11 | * Provides access to transforms by index and by iterator, and also allows
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12 | * adding and removing transforms.
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13 | *
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14 | */
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15 | public interface FeatureStoreTransforms extends Cloneable { |
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16 | |||
17 | /**
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18 | * Returns the FeatureStoreTransform given its index.
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19 | *
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20 | * @param index
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21 | * a position in this FeatureStoreTransforms
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22 | *
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23 | * @return
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24 | * the FeatureStoreTransform that is stored in the given index.
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25 | */
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26 | public FeatureStoreTransform getTransform(int index); |
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27 | |||
28 | /**
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29 | * Adds a FeatureStoreTransform to this container.
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30 | *
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31 | * @param transform
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32 | * the FeatureStoreTransform to add
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33 | *
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34 | * @return
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35 | * the added FeatureStoreTransform
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36 | *
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37 | * @throws DataException
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38 | */
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39 | public FeatureStoreTransform add(FeatureStoreTransform transform)
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40 | throws DataException;
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41 | |||
42 | /**
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43 | * Returns the number of FeatureStoreTransforms stored in this container
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44 | *
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45 | * @return
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46 | * number of FeatureStoreTransforms stored in this container
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47 | */
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48 | public int size(); |
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49 | |||
50 | /**
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51 | * Indicates whether this container is empty.
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52 | *
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53 | * @return
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54 | * true if this container is empty, false if not
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55 | */
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56 | public boolean isEmpty(); |
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57 | |||
58 | /**
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59 | * Returns an iterator over this container elements.
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60 | *
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61 | * @return
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62 | * an iterator over this container elements.
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63 | */
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64 | public Iterator iterator(); |
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65 | |||
66 | /**
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67 | * Empties this container.
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68 | *
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69 | */
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70 | public void clear(); |
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71 | |||
72 | /**
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73 | * Removes the {@link FeatureStoreTransform} given its index.
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74 | *
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75 | * @param index
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76 | * the position of the {@link FeatureStoreTransform} to remove.
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77 | * @return
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78 | * the removed object
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79 | */
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80 | public Object remove(int index); |
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81 | |||
82 | /**
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83 | * Removes the given {@link FeatureStoreTransform}.
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84 | *
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85 | * @param transform
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86 | * {@link FeatureStoreTransform} to remove
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87 | * @return
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88 | * true if the transform was successfully removed, false if not.
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89 | */
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90 | public boolean remove(FeatureStoreTransform transform); |
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91 | |||
92 | /**
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93 | * Retruns true if any {@link FeatureStoreTransform} make changes of any
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94 | * previous attributes values.<br>
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95 | *
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96 | * If all {@link FeatureStoreTransform} affects only to attributes defition,
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97 | * the {@link FeatureSet} performance can be better.
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98 | *
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99 | * @return
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100 | */
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101 | public boolean isTransformsOriginalValues(); |
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102 | |||
103 | } |