svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.spi / src / main / java / org / gvsig / fmap / dal / feature / spi / DefaultFeatureProvider.java @ 40435
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1 | 40435 | jjdelcerro | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | |||
23 | /*
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24 | * AUTHORS (In addition to CIT):
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25 | * 2008 {{Company}} {{Task}}
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26 | */
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27 | |||
28 | package org.gvsig.fmap.dal.feature.spi; |
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29 | |||
30 | import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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31 | import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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32 | import org.gvsig.fmap.dal.feature.FeatureType; |
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33 | import org.gvsig.fmap.geom.Geometry; |
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34 | import org.gvsig.fmap.geom.primitive.Envelope; |
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35 | |||
36 | /**
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37 | * Default implementation for {@link FeatureProvider}
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38 | *
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39 | */
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40 | public class DefaultFeatureProvider implements FeatureProvider { |
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41 | |||
42 | protected FeatureType featureType;
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43 | protected boolean[] nulls; |
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44 | protected Object[] values; |
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45 | protected Geometry defaultGeometry;
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46 | protected Envelope envelope;
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47 | private Object oid; |
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48 | private boolean isNew=false; |
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49 | |||
50 | public DefaultFeatureProvider(FeatureType type) {
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51 | if (type instanceof EditableFeatureType) { |
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52 | throw new IllegalArgumentException("type can't by editable."); |
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53 | } |
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54 | this.featureType = type;
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55 | this.values = new Object[featureType.size()]; |
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56 | this.nulls = new boolean[featureType.size()]; |
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57 | |||
58 | this.envelope = null; |
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59 | this.defaultGeometry = null; |
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60 | this.oid = null; |
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61 | } |
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62 | |||
63 | public DefaultFeatureProvider(FeatureType type, Object oid) { |
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64 | this(type);
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65 | this.oid = oid;
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66 | } |
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67 | |||
68 | /*
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69 | * (non-Javadoc)
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70 | *
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71 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#set(int,
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72 | * java.lang.Object)
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73 | */
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74 | public void set(int i, Object value) { |
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75 | if (featureType.getDefaultGeometryAttributeIndex() == i) {
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76 | defaultGeometry = (Geometry) value; |
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77 | envelope = null;
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78 | } |
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79 | if (value == null) { |
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80 | nulls[i] = true;
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81 | values[i] = featureType.getAttributeDescriptor(i).getDefaultValue(); |
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82 | } else {
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83 | values[i] = value; |
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84 | nulls[i] = false;
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85 | } |
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86 | } |
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87 | |||
88 | /*
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89 | * (non-Javadoc)
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90 | *
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91 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#set(java.lang.String,
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92 | * java.lang.Object)
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93 | */
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94 | public void set(String name, Object value) { |
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95 | set(featureType.getIndex(name), value); |
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96 | } |
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97 | |||
98 | /*
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99 | * (non-Javadoc)
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100 | *
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101 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#get(int)
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102 | */
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103 | public Object get(int i) { |
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104 | return values[i];
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105 | } |
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106 | |||
107 | /*
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108 | * (non-Javadoc)
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109 | *
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110 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#get(java.lang.String)
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111 | */
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112 | public Object get(String name) { |
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113 | FeatureAttributeDescriptor featureAttributeDescriptor = featureType.getAttributeDescriptor(name); |
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114 | return values[featureAttributeDescriptor.getIndex()];
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115 | } |
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116 | |||
117 | /*
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118 | * (non-Javadoc)
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119 | *
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120 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#getType()
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121 | */
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122 | public FeatureType getType() {
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123 | return featureType;
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124 | } |
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125 | |||
126 | /*
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127 | * (non-Javadoc)
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128 | *
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129 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#getCopy()
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130 | */
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131 | public FeatureProvider getCopy() {
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132 | DefaultFeatureProvider data = new DefaultFeatureProvider(
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133 | this.getType());
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134 | return getCopy(data);
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135 | } |
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136 | |||
137 | /**
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138 | * Copy values from current instance to <code>data</code>
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139 | */
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140 | protected FeatureProvider getCopy(DefaultFeatureProvider data) {
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141 | data.oid = this.oid;
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142 | System.arraycopy(this.values, 0, data.values, 0, this.values.length); |
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143 | data.defaultGeometry = this.defaultGeometry;
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144 | data.envelope = this.envelope;
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145 | data.isNew=this.isNew;
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146 | return data;
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147 | } |
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148 | |||
149 | /*
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150 | * (non-Javadoc)
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151 | *
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152 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#getDefaultEnvelope()
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153 | */
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154 | public Envelope getDefaultEnvelope() {
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155 | if (envelope == null && defaultGeometry != null) { |
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156 | envelope = defaultGeometry.getEnvelope(); |
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157 | } |
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158 | return envelope;
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159 | } |
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160 | |||
161 | /*
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162 | * (non-Javadoc)
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163 | *
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164 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#getDefaultGeometry()
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165 | */
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166 | public Geometry getDefaultGeometry() {
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167 | return this.defaultGeometry; |
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168 | } |
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169 | |||
170 | /*
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171 | * (non-Javadoc)
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172 | *
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173 | * @see
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174 | * org.gvsig.fmap.dal.feature.spi.FeatureProvider#setDefaultEnvelope(org
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175 | * .gvsig.fmap.geom.primitive.Envelope)
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176 | */
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177 | public void setDefaultEnvelope(Envelope envelope) { |
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178 | this.envelope = envelope;
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179 | } |
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180 | |||
181 | /*
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182 | * (non-Javadoc)
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183 | *
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184 | * @see
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185 | * org.gvsig.fmap.dal.feature.spi.FeatureProvider#setDefaultGeometry(org
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186 | * .gvsig.fmap.geom.Geometry)
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187 | */
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188 | public void setDefaultGeometry(Geometry geom) { |
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189 | int i = featureType.getDefaultGeometryAttributeIndex();
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190 | defaultGeometry = geom; |
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191 | envelope = null;
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192 | values[i] = geom; |
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193 | } |
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194 | |||
195 | /*
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196 | * (non-Javadoc)
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197 | *
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198 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#isNull(int)
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199 | */
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200 | public boolean isNull(int i) { |
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201 | return nulls[i];
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202 | } |
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203 | |||
204 | /*
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205 | * (non-Javadoc)
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206 | *
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207 | * @see
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208 | * org.gvsig.fmap.dal.feature.spi.FeatureProvider#isNull(java.lang.String)
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209 | */
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210 | public boolean isNull(String name) { |
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211 | int i = featureType.getIndex(name);
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212 | return isNull(i);
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213 | } |
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214 | |||
215 | /*
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216 | * (non-Javadoc)
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217 | *
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218 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#getOID()
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219 | */
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220 | public Object getOID() { |
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221 | return this.oid; |
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222 | } |
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223 | |||
224 | /*
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225 | * (non-Javadoc)
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226 | *
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227 | * @see
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228 | * org.gvsig.fmap.dal.feature.spi.FeatureProvider#setOID(java.lang.Object)
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229 | */
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230 | public void setOID(Object oid) { |
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231 | this.oid = oid;
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232 | } |
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233 | |||
234 | /*
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235 | * (non-Javadoc)
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236 | *
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237 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#isNew()
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238 | */
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239 | public boolean isNew(){ |
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240 | return isNew;
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241 | } |
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242 | |||
243 | /*
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244 | * (non-Javadoc)
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245 | *
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246 | * @see org.gvsig.fmap.dal.feature.spi.FeatureProvider#setNew(boolean)
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247 | */
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248 | public void setNew(boolean isNew){ |
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249 | this.isNew=isNew;
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250 | } |
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251 | } |