svn-gvsig-desktop / trunk / extensions / extGeoProcessing / src / com / iver / cit / gvsig / geoprocess / impl / dissolve / fmap / IDissolveCriteria.java @ 8214
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| 1 | 5918 | azabala | /*
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| 2 | * Created on 12-may-2006
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| 3 | *
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| 4 | * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 5 | *
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| 6 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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| 7 | *
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| 8 | * This program is free software; you can redistribute it and/or
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| 9 | * modify it under the terms of the GNU General Public License
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| 10 | * as published by the Free Software Foundation; either version 2
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| 11 | * of the License, or (at your option) any later version.
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| 12 | *
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| 13 | * This program is distributed in the hope that it will be useful,
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | * GNU General Public License for more details.
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| 17 | *
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| 18 | * You should have received a copy of the GNU General Public License
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| 19 | * along with this program; if not, write to the Free Software
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| 20 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 21 | *
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| 22 | * For more information, contact:
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| 23 | *
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| 24 | * Generalitat Valenciana
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| 25 | * Conselleria d'Infraestructures i Transport
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| 26 | * Av. Blasco Ib??ez, 50
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| 27 | * 46010 VALENCIA
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| 28 | * SPAIN
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| 29 | *
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| 30 | * +34 963862235
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| 31 | * gvsig@gva.es
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| 32 | * www.gvsig.gva.es
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| 33 | *
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| 34 | * or
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| 35 | *
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| 36 | * IVER T.I. S.A
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| 37 | * Salamanca 50
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| 38 | * 46005 Valencia
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| 39 | * Spain
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| 40 | *
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| 41 | * +34 963163400
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| 42 | * dac@iver.es
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| 43 | */
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| 44 | /* CVS MESSAGES:
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| 45 | *
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| 46 | * $Id$
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| 47 | * $Log$
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| 48 | * Revision 1.1 2006-06-20 18:20:45 azabala
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| 49 | * first version in cvs
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| 50 | *
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| 51 | * Revision 1.1 2006/05/24 21:11:14 azabala
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| 52 | * primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing
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| 53 | *
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| 54 | *
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| 55 | */
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| 56 | package com.iver.cit.gvsig.geoprocess.impl.dissolve.fmap; |
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| 57 | |||
| 58 | import java.util.ArrayList; |
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| 59 | import java.util.Iterator; |
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| 60 | import java.util.List; |
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| 61 | import java.util.Map; |
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| 62 | |||
| 63 | import com.iver.cit.gvsig.fmap.DriverException; |
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| 64 | import com.iver.cit.gvsig.fmap.core.IFeature; |
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| 65 | import com.iver.cit.gvsig.fmap.core.IGeometry; |
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| 66 | import com.iver.cit.gvsig.fmap.drivers.FieldDescription; |
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| 67 | import com.iver.cit.gvsig.fmap.drivers.ILayerDefinition; |
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| 68 | import com.iver.cit.gvsig.fmap.drivers.SHPLayerDefinition; |
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| 69 | import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
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| 70 | import com.iver.cit.gvsig.geoprocess.core.fmap.DefinitionUtils; |
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| 71 | import com.iver.cit.gvsig.geoprocess.core.fmap.SummarizationFunction; |
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| 72 | import com.iver.cit.gvsig.geoprocess.core.fmap.XTypes; |
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| 73 | /**
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| 74 | * Implementations has the responsability of decide if Dissolver must
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| 75 | * dissolve two features.
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| 76 | * <br>
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| 77 | * Because this decision could depend of one (or many) attribute values
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| 78 | * of compared features, and resulting features of dissolve must have
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| 79 | * all dissolving fields, implementations of this interface must have
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| 80 | * the responsability of creating new resulting features of a dissolve.
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| 81 | * @author azabala
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| 82 | *
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| 83 | */
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| 84 | public interface IDissolveCriteria { |
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| 85 | /**
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| 86 | * Returns if we must dissolve feature of index "featureindex1" with
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| 87 | * feature of index "featureindex2"
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| 88 | * @param featureIndex1
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| 89 | * @param featureIndex2
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| 90 | * @return
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| 91 | */
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| 92 | public boolean verifyIfDissolve(int featureIndex1, int featureIndex2); |
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| 93 | |||
| 94 | /**
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| 95 | * Builds features from a dissolve operation.
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| 96 | * @author azabala
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| 97 | *
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| 98 | */
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| 99 | public interface IDissolvedFeatureBuilder { |
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| 100 | /**
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| 101 | * Create a new feature from geometry g, and the index of
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| 102 | * the 'seed' (first feature of the dissolve group) feature
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| 103 | * (useful for fetching dissolve fields value, etc.)
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| 104 | * @param g
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| 105 | * @param index
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| 106 | * @param fid
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| 107 | * @return
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| 108 | */
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| 109 | public IFeature createFeature(IGeometry g, int index, int fid); |
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| 110 | /**
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| 111 | *
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| 112 | * @param newGeometry
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| 113 | * @param sumarizedValues
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| 114 | * @param newFid
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| 115 | * @param index
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| 116 | * @return
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| 117 | */
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| 118 | public IFeature createFeature(IGeometry newGeometry,
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| 119 | List sumarizedValues, int newFid, int index); |
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| 120 | } |
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| 121 | |||
| 122 | |||
| 123 | public IDissolvedFeatureBuilder getFeatureBuilder();
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| 124 | |||
| 125 | /**
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| 126 | * Clear all state information about dissolving
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| 127 | * (usually a criteria could cache dissolve information to
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| 128 | * avoid reading dissolve fields value always)
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| 129 | *
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| 130 | */
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| 131 | public void clear(); |
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| 132 | |||
| 133 | /**
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| 134 | * Returns a LayerDefinition for the result layer of those
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| 135 | * dissolve geoprocesses where this criteria applies.
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| 136 | *
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| 137 | * @return
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| 138 | */
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| 139 | public ILayerDefinition createLayerDefinition(Map numFields_SumFunc); |
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| 140 | } |
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| 141 |