svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / layers / SelectableDataSource.java @ 1283
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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 | 460 | fernando | package com.iver.cit.gvsig.fmap.layers; |
42 | |||
43 | import com.hardcode.gdbms.engine.data.DataSource; |
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44 | 546 | fernando | import com.hardcode.gdbms.engine.data.DataSourceFactory; |
45 | 460 | fernando | import com.hardcode.gdbms.engine.data.DriverException; |
46 | 546 | fernando | import com.hardcode.gdbms.engine.data.NoSuchTableException; |
47 | 460 | fernando | import com.hardcode.gdbms.engine.data.ReadDriver; |
48 | import com.hardcode.gdbms.engine.instruction.FieldNotFoundException; |
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49 | import com.hardcode.gdbms.engine.values.Value; |
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50 | 1034 | vcaballero | |
51 | 581 | vcaballero | import com.iver.utiles.XMLEntity; |
52 | 460 | fernando | |
53 | 527 | vcaballero | import org.apache.log4j.Logger; |
54 | 460 | fernando | |
55 | 1034 | vcaballero | import java.io.IOException; |
56 | 460 | fernando | |
57 | 1034 | vcaballero | |
58 | 527 | vcaballero | /**
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59 | 1034 | vcaballero | * DataSource seleccionable.
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60 | 527 | vcaballero | *
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61 | 546 | fernando | * @author Fernando Gonz?lez Cort?s
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62 | 527 | vcaballero | */
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63 | public class SelectableDataSource implements DataSource { |
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64 | private static Logger logger = Logger.getLogger(SelectableDataSource.class.getName()); |
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65 | 460 | fernando | private SelectionSupport selectionSupport = new SelectionSupport(); |
66 | private DataSource dataSource; |
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67 | 527 | vcaballero | |
68 | 460 | fernando | /**
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69 | 1034 | vcaballero | * Crea un nuevo SelectableDataSource.
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70 | 527 | vcaballero | *
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71 | 1034 | vcaballero | * @param name
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72 | 460 | fernando | * @param ds
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73 | */
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74 | 1064 | fernando | public SelectableDataSource(DataSource ds) { |
75 | 460 | fernando | dataSource = ds; |
76 | } |
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77 | 527 | vcaballero | |
78 | 460 | fernando | /**
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79 | 1034 | vcaballero | * A?ade el soporte para la selecci?n.
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80 | 527 | vcaballero | *
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81 | 460 | fernando | * @param selectionSupport
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82 | */
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83 | public void setSelectionSupport(SelectionSupport selectionSupport) { |
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84 | this.selectionSupport = selectionSupport;
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85 | } |
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86 | |||
87 | 527 | vcaballero | /**
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88 | 1034 | vcaballero | * Devuelve el DBMS.
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89 | 527 | vcaballero | *
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90 | 1034 | vcaballero | * @return String.
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91 | 527 | vcaballero | */
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92 | 460 | fernando | public String getDBMS() { |
93 | return dataSource.getDBMS();
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94 | } |
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95 | 527 | vcaballero | |
96 | /**
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97 | 1034 | vcaballero | * Devuelve el driver de la capa.
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98 | 527 | vcaballero | *
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99 | 1034 | vcaballero | * @return ReadDriver.
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100 | 527 | vcaballero | */
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101 | 460 | fernando | public ReadDriver getDriver() {
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102 | return dataSource.getDriver();
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103 | } |
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104 | 527 | vcaballero | |
105 | /**
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106 | 1034 | vcaballero | * Devuelve el n?mero de campos.
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107 | 527 | vcaballero | *
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108 | 1034 | vcaballero | * @return N?mero de campos.
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109 | 527 | vcaballero | *
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110 | 1034 | vcaballero | * @throws DriverException
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111 | 527 | vcaballero | */
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112 | 460 | fernando | public int getFieldCount() throws DriverException { |
113 | return dataSource.getFieldCount();
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114 | } |
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115 | 527 | vcaballero | |
116 | /**
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117 | 1034 | vcaballero | * Devuelve el ?ndice del campo a partir de su nombre.
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118 | 527 | vcaballero | *
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119 | 1034 | vcaballero | * @param arg0 nombre del campo.
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120 | 527 | vcaballero | *
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121 | 1034 | vcaballero | * @return ?ndice.
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122 | 527 | vcaballero | *
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123 | 1034 | vcaballero | * @throws DriverException
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124 | * @throws FieldNotFoundException
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125 | 527 | vcaballero | */
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126 | public int getFieldIndexByName(String arg0) |
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127 | throws DriverException, FieldNotFoundException {
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128 | 460 | fernando | return dataSource.getFieldIndexByName(arg0);
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129 | } |
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130 | 527 | vcaballero | |
131 | /**
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132 | 1034 | vcaballero | * Devuelve el nombre del campo a partir del ?ndice.
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133 | 527 | vcaballero | *
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134 | 1034 | vcaballero | * @param arg0 ?ndice.
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135 | 527 | vcaballero | *
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136 | 1034 | vcaballero | * @return nombre del campo.
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137 | 527 | vcaballero | *
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138 | 1034 | vcaballero | * @throws DriverException
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139 | 527 | vcaballero | */
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140 | 460 | fernando | public String getFieldName(int arg0) throws DriverException { |
141 | return dataSource.getFieldName(arg0);
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142 | } |
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143 | 527 | vcaballero | |
144 | /**
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145 | 1034 | vcaballero | * Devuelve el valor a partir del n?mro de fila y columna.
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146 | 527 | vcaballero | *
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147 | 1034 | vcaballero | * @param arg0 n?mero de registro.
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148 | * @param arg1 n?mero de campo.
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149 | 527 | vcaballero | *
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150 | 1034 | vcaballero | * @return Valor.
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151 | 527 | vcaballero | *
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152 | 1034 | vcaballero | * @throws DriverException
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153 | 527 | vcaballero | */
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154 | 460 | fernando | public Value getFieldValue(long arg0, int arg1) throws DriverException { |
155 | return dataSource.getFieldValue(arg0, arg1);
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156 | } |
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157 | 527 | vcaballero | |
158 | /**
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159 | 1034 | vcaballero | * Devuelve el nombre del DataSource.
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160 | 527 | vcaballero | *
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161 | 1034 | vcaballero | * @return Nombre.
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162 | 527 | vcaballero | */
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163 | 460 | fernando | public String getName() { |
164 | return dataSource.getName();
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165 | } |
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166 | 527 | vcaballero | |
167 | /**
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168 | 1034 | vcaballero | * Devuelve el n?mro de filas en total.
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169 | 527 | vcaballero | *
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170 | 1034 | vcaballero | * @return n?mero de filas.
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171 | 527 | vcaballero | *
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172 | 1034 | vcaballero | * @throws DriverException
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173 | 527 | vcaballero | */
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174 | 460 | fernando | public long getRowCount() throws DriverException { |
175 | return dataSource.getRowCount();
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176 | } |
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177 | 527 | vcaballero | |
178 | /**
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179 | 1034 | vcaballero | * Inicializa el dataSource.
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180 | 527 | vcaballero | *
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181 | 1034 | vcaballero | * @throws DriverException
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182 | 527 | vcaballero | */
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183 | 460 | fernando | public void start() throws DriverException { |
184 | 527 | vcaballero | logger.debug("dataSource.start()");
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185 | 460 | fernando | dataSource.start(); |
186 | } |
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187 | 527 | vcaballero | |
188 | /**
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189 | 1034 | vcaballero | * Finaliza el DataSource.
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190 | 527 | vcaballero | *
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191 | 1034 | vcaballero | * @throws DriverException
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192 | 527 | vcaballero | */
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193 | 460 | fernando | public void stop() throws DriverException { |
194 | 527 | vcaballero | logger.debug("dataSource.stop()");
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195 | 460 | fernando | dataSource.stop(); |
196 | } |
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197 | |||
198 | /**
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199 | 527 | vcaballero | * Cuando ocurre un evento de cambio en la selecci?n, ?ste puede ser uno de
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200 | * una gran cantidad de eventos. Con el fin de no propagar todos estos
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201 | * eventos, se realiza la propagaci?n de manera manual al final de la
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202 | * "r?faga" de eventos
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203 | 460 | fernando | */
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204 | public void fireSelectionEvents() { |
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205 | selectionSupport.fireSelectionEvents(); |
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206 | } |
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207 | |||
208 | 527 | vcaballero | /**
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209 | 1034 | vcaballero | * A?ade un nuevo Listener al SelectionSupport.
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210 | 527 | vcaballero | *
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211 | 1034 | vcaballero | * @param listener SelectionListener.
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212 | 527 | vcaballero | */
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213 | 460 | fernando | public void addSelectionListener(SelectionListener listener) { |
214 | selectionSupport.addSelectionListener(listener); |
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215 | } |
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216 | |||
217 | 527 | vcaballero | /**
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218 | 1034 | vcaballero | * Borra un Listener al SelectionSupport.
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219 | 527 | vcaballero | *
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220 | 1034 | vcaballero | * @param listener Listener a borrar.
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221 | 527 | vcaballero | */
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222 | 460 | fernando | public void removeSelectionListener(SelectionListener listener) { |
223 | selectionSupport.removeSelectionListener(listener); |
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224 | } |
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225 | 527 | vcaballero | |
226 | /**
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227 | 1034 | vcaballero | * Borra la selecci?n.
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228 | 527 | vcaballero | */
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229 | 460 | fernando | public void clearSelection() { |
230 | selectionSupport.clearSelection(); |
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231 | } |
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232 | 527 | vcaballero | |
233 | /**
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234 | 1034 | vcaballero | * Develve un FBitSet con los ?ndices de los elementos seleccionados.
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235 | 527 | vcaballero | *
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236 | 1034 | vcaballero | * @return FBitset con los elementos seleccionados.
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237 | 527 | vcaballero | */
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238 | 884 | fernando | public FBitSet getSelection() {
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239 | 460 | fernando | return selectionSupport.getSelection();
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240 | } |
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241 | 1034 | vcaballero | |
242 | /**
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243 | * Devuelve el SelectionSupport.
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244 | *
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245 | * @return SelectinSuport.
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246 | */
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247 | public SelectionSupport getSelectionSupport() {
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248 | 581 | vcaballero | return selectionSupport;
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249 | } |
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250 | 1034 | vcaballero | |
251 | 527 | vcaballero | /**
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252 | 1034 | vcaballero | * Devuelve true si el elemento est? seleccionado.
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253 | 527 | vcaballero | *
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254 | 1034 | vcaballero | * @param recordIndex ?ndice del registro.
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255 | 527 | vcaballero | *
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256 | 1034 | vcaballero | * @return True si el registro est? seleccionado.
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257 | 527 | vcaballero | */
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258 | 460 | fernando | public boolean isSelected(int recordIndex) { |
259 | return selectionSupport.isSelected(recordIndex);
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260 | } |
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261 | 527 | vcaballero | |
262 | /**
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263 | 1034 | vcaballero | * Inserta una nueva selecci?n.
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264 | 527 | vcaballero | *
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265 | 1034 | vcaballero | * @param selection FBitSet.
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266 | 527 | vcaballero | */
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267 | 683 | fernando | public void setSelection(FBitSet selection) { |
268 | 460 | fernando | selectionSupport.setSelection(selection); |
269 | } |
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270 | 546 | fernando | |
271 | /**
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272 | 1034 | vcaballero | * Inserta un nuevo nombre para el dataSource.
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273 | 546 | fernando | *
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274 | 1034 | vcaballero | * @param name Nuevo nombre del DataSource.
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275 | *
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276 | * @throws RuntimeException
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277 | 546 | fernando | */
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278 | public void setName(String name) { |
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279 | try {
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280 | 1064 | fernando | DataSourceFactory.changeDataSourceName(dataSource.getName(), name); |
281 | 546 | fernando | } catch (NoSuchTableException e) {
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282 | throw new RuntimeException("No se encuentra la tabla????"); |
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283 | } |
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284 | } |
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285 | 1034 | vcaballero | |
286 | /**
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287 | * Devuelve el XMLEntity con la informaci?n necesaria para reproducir el
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288 | * DataSource.
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289 | *
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290 | * @return XMLEntity.
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291 | */
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292 | public XMLEntity getXMLEntity() {
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293 | XMLEntity xml = new XMLEntity();
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294 | 1094 | vcaballero | xml.putProperty("className",this.getClass().getName()); |
295 | 581 | vcaballero | xml.addChild(selectionSupport.getXMLEntity()); |
296 | 1034 | vcaballero | |
297 | 581 | vcaballero | return xml;
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298 | } |
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299 | 732 | fernando | |
300 | /**
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301 | 1034 | vcaballero | * A partir del XMLEntity se rellenan los atributos del DataSource.
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302 | *
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303 | 732 | fernando | * @param child
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304 | */
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305 | public void setXMLEntity(XMLEntity child) { |
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306 | selectionSupport.setXMLEntity(child.getChild(0));
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307 | } |
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308 | 884 | fernando | |
309 | /**
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310 | * @see com.hardcode.gdbms.engine.data.DataSource#getWhereFilter()
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311 | */
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312 | public long[] getWhereFilter() throws IOException { |
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313 | return dataSource.getWhereFilter();
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314 | } |
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315 | 460 | fernando | } |