svn-gvsig-desktop / tags / v1_1_Build_1013 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / ReadableVectorial.java @ 13521
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1 | 1100 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | 214 | fernando | package com.iver.cit.gvsig.fmap.layers; |
42 | |||
43 | 3940 | caballero | import com.hardcode.driverManager.DriverLoadException; |
44 | import com.hardcode.gdbms.engine.data.DataSource; |
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45 | 3943 | fjp | import com.hardcode.gdbms.engine.values.Value; |
46 | import com.iver.cit.gvsig.fmap.DriverException; |
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47 | import com.iver.cit.gvsig.fmap.core.DefaultFeature; |
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48 | import com.iver.cit.gvsig.fmap.core.IFeature; |
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49 | 305 | fjp | import com.iver.cit.gvsig.fmap.core.IGeometry; |
50 | 3940 | caballero | import com.iver.cit.gvsig.fmap.drivers.DriverAttributes; |
51 | 214 | fernando | import com.iver.cit.gvsig.fmap.drivers.DriverIOException; |
52 | 4085 | fjp | import com.iver.cit.gvsig.fmap.drivers.IFeatureIterator; |
53 | 3940 | caballero | import com.iver.cit.gvsig.fmap.drivers.VectorialDriver; |
54 | import com.vividsolutions.jts.geom.Envelope; |
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55 | 214 | fernando | |
56 | 369 | fernando | import java.awt.geom.Rectangle2D; |
57 | 3940 | caballero | import java.util.List; |
58 | 214 | fernando | |
59 | 369 | fernando | |
60 | 214 | fernando | /**
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61 | * Interfaz usada internamente para acceder a fuentes de datos vectoriales en
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62 | * modo lectura
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63 | */
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64 | public interface ReadableVectorial { |
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65 | 1034 | vcaballero | /**
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66 | * Indica que se va a comenzar a hacer una serie de operaciones sobre el
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67 | * origen de datos con la finalidad de que dicho origen de datos se
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68 | * prepare (abra el fichero, comience una transacci?n, conecte al
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69 | * servidor, ...). Abre el fichero de ?ndices en caso de que exista.
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70 | *
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71 | * @throws DriverIOException
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72 | */
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73 | void start() throws DriverIOException; |
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74 | 214 | fernando | |
75 | 1034 | vcaballero | /**
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76 | * Hace que se cierre el soporte f?sico de la capa. Cierra el fichero de
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77 | * ?ndices en caso de que exista.
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78 | *
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79 | * @throws DriverIOException
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80 | */
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81 | void stop() throws DriverIOException; |
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82 | 214 | fernando | |
83 | 1034 | vcaballero | /**
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84 | * Devuelve la geometr?a a partir de un ?ndice.
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85 | *
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86 | * @param index ?ndice.
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87 | *
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88 | * @return Geometr?a.
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89 | *
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90 | * @throws DriverIOException
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91 | */
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92 | IGeometry getShape(int index) throws DriverIOException; |
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93 | 214 | fernando | |
94 | 1034 | vcaballero | /**
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95 | * Devuelve el n?mero de Shape.
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96 | *
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97 | * @return N?mero de Shape.
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98 | *
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99 | * @throws DriverIOException
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100 | */
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101 | int getShapeCount() throws DriverIOException; |
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102 | 214 | fernando | |
103 | 1034 | vcaballero | /**
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104 | * Devuelve la extensi?n total de la capa.
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105 | *
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106 | * @return Extensi?n total.
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107 | *
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108 | * @throws DriverIOException
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109 | */
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110 | Rectangle2D getFullExtent() throws DriverIOException; |
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111 | 369 | fernando | |
112 | 1034 | vcaballero | /**
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113 | * Obtiene el tipo de las geometr?as almacenadas en esta fuente de datos
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114 | *
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115 | * @return Obtiene el tipo de la capa. Es un bit-oring de los tipos
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116 | * definidos en FShape POINT, LINE, POLYGON o TEXT;
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117 | *
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118 | * @throws DriverIOException
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119 | */
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120 | int getShapeType() throws DriverIOException; |
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121 | 3940 | caballero | /**
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122 | * Obtiene una referencia al objeto que implementa la interfaz vectorial
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123 | * con el fin de que las Strategy puedan optimizar en funci?n del driver.
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124 | *
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125 | * @return VectorialDriver
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126 | */
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127 | public VectorialDriver getDriver();
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128 | /**
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129 | * Establece el driver sobre el que act?a el adaptador
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130 | *
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131 | * @param driver
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132 | */
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133 | public void setDriver(VectorialDriver driver); |
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134 | /*
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135 | * (non-Javadoc)
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136 | *
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137 | * @see com.iver.cit.gvsig.fmap.layers.VectorialAdapter#getRecordset()
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138 | */
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139 | 3959 | caballero | public SelectableDataSource getRecordset() throws DriverLoadException; |
140 | 3940 | caballero | public DriverAttributes getDriverAttributes();
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141 | 3959 | caballero | |
142 | 3943 | fjp | /**
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143 | * En la implementaci?n por defecto podemos hacer que cada
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144 | * feature tenga ID = numero de registro.
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145 | * En el DBAdapter podr?amos "overrride" este m?todo y poner
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146 | * como ID de la Feature el campo ?nico escogido en
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147 | * la base de datos. B?sicamente es por comodidad.
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148 | * @param numReg
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149 | * @return
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150 | * @throws DriverException
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151 | */
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152 | public IFeature getFeature(int numReg) throws DriverException; |
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153 | 4085 | fjp | |
154 | 4115 | fjp | /* public IFeatureIterator getFeatureIterator(String strEPSG) throws DriverException;
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155 | public IFeatureIterator getFeatureIterator(Rectangle2D r, String strEPSG) throws DriverException; */
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156 | 3940 | caballero | |
157 | 3963 | caballero | //void setRecordset(SelectableDataSource sds);
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158 | 3940 | caballero | |
159 | 3943 | fjp | |
160 | 3963 | caballero | |
161 | 214 | fernando | } |