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 / FeatureType.java @ 44500
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | 40435 | jjdelcerro | package org.gvsig.fmap.dal.feature; |
25 | |||
26 | import java.util.Iterator; |
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27 | import java.util.List; |
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28 | 44262 | jjdelcerro | import java.util.function.Predicate; |
29 | 40435 | jjdelcerro | |
30 | import org.cresques.cts.IProjection; |
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31 | |||
32 | import org.gvsig.fmap.geom.Geometry; |
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33 | 44262 | jjdelcerro | import org.gvsig.tools.dataTypes.DataType; |
34 | 40435 | jjdelcerro | import org.gvsig.tools.dynobject.DynClass; |
35 | 44253 | jjdelcerro | import org.gvsig.tools.dynobject.DynStruct_v2; |
36 | 40435 | jjdelcerro | import org.gvsig.tools.evaluator.Evaluator; |
37 | 44149 | jjdelcerro | import org.gvsig.tools.util.UnmodifiableBasicList; |
38 | 40435 | jjdelcerro | |
39 | /**
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40 | * <p>
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41 | 44262 | jjdelcerro | * This interface provides all the information that describes the structure of a
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42 | * type of feature, methods for managing it and also offers a variety of utility
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43 | 40435 | jjdelcerro | * methods for simplicity's sake.
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44 | * </p>
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45 | *
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46 | * <p>
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47 | * The relevant information that compounds a FeatureType includes:
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48 | * </p>
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49 | *
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50 | 44262 | jjdelcerro | * <ul>
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51 | * <li> {@link FeatureAttributeDescriptor}(s)
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52 | * <li> {@link FeatureRule}(s)
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53 | * <li> Its size
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54 | * <li> Its SRS(s)
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55 | * <li> Its identifier
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56 | * <li> Whether features of this type have an OID or not (identifier assigned by
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57 | * the store).
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58 | 40435 | jjdelcerro | * </ul>
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59 | *
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60 | * <p>
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61 | * Methods for management include:
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62 | * </p>
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63 | *
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64 | 44262 | jjdelcerro | * <ul>
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65 | * <li>Obtaining its editable instance.
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66 | * <li>Obtaining an iterator over its attributes.
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67 | * <li>Knowing whether this FeatureType has any associated evaluator for
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68 | * calculated attributes.
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69 | * </ul>
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70 | 40435 | jjdelcerro | *
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71 | * <p>
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72 | * Utility methods include:
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73 | * </p>
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74 | *
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75 | * <ul>
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76 | * <li>Getting a copy of the FeatureType.
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77 | * <li>Getting the default geometry attribute.
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78 | * <li>Getting the default spatial reference system.
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79 | 44077 | jjdelcerro | * </ul>
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80 | 40435 | jjdelcerro | */
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81 | 44253 | jjdelcerro | public interface FeatureType extends DynClass, DynStruct_v2, UnmodifiableBasicList<FeatureAttributeDescriptor> { |
82 | 40435 | jjdelcerro | |
83 | 44262 | jjdelcerro | public static final Predicate<FeatureAttributeDescriptor> BASIC_TYPES_FILTER = new Predicate<FeatureAttributeDescriptor>() { |
84 | @Override
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85 | public boolean test(FeatureAttributeDescriptor attrdesc) { |
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86 | DataType t = attrdesc.getDataType(); |
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87 | boolean r = !(t.isContainer() || t.isDynObject() || t.isObject());
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88 | return r;
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89 | } |
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90 | }; |
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91 | 40435 | jjdelcerro | |
92 | 44262 | jjdelcerro | public static Predicate<FeatureAttributeDescriptor> ALL_FILTER = new Predicate<FeatureAttributeDescriptor>() { |
93 | @Override
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94 | public boolean test(FeatureAttributeDescriptor t) { |
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95 | return true; |
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96 | } |
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97 | }; |
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98 | /**
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99 | * Returns a new copy of this FeatureType
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100 | *
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101 | * @return a new copy of this FeatureType
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102 | */
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103 | public FeatureType getCopy();
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104 | 40435 | jjdelcerro | |
105 | 44318 | jjdelcerro | public void copyFrom(FeatureType other); |
106 | |||
107 | 44262 | jjdelcerro | /**
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108 | * Returns a {@link FeatureRules} containing all rules applicable to
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109 | * features of this type.
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110 | *
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111 | * @return a {@link FeatureRules} containing all rules applicable to
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112 | * features of this type.
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113 | */
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114 | public FeatureRules getRules();
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115 | 40435 | jjdelcerro | |
116 | 44262 | jjdelcerro | /**
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117 | * Returns an editable instance of this FeatureType. Any modifications on a
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118 | * FeatureType must be done through its editable instance.
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119 | *
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120 | * @return the editable instance of this FeatureType.
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121 | *
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122 | * @see EditableFeatureType
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123 | */
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124 | public EditableFeatureType getEditable();
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125 | 40435 | jjdelcerro | |
126 | 44262 | jjdelcerro | /**
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127 | * Given the name of an attribute, this method returns its position in this
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128 | * FeatureType.
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129 | *
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130 | * @param name of the attribute
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131 | * @return position of the attribute
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132 | */
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133 | public int getIndex(String name); |
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134 | 40435 | jjdelcerro | |
135 | 44262 | jjdelcerro | /**
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136 | * Returns an attribute descriptor given its name.
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137 | *
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138 | * @param name of the attribute
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139 | * @return descriptor of the attribute, a
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140 | * {@link FeatureAttributeDescriptor}.
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141 | */
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142 | public Object get(String name); |
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143 | 40435 | jjdelcerro | |
144 | 44262 | jjdelcerro | /**
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145 | * Returns an attribute descriptor given its index
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146 | *
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147 | * @param index of the attribute
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148 | *
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149 | * @return descriptor of the attribute, a {@link FeatureAttributeDescriptor}
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150 | */
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151 | public FeatureAttributeDescriptor get(int index); |
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152 | 40435 | jjdelcerro | |
153 | 44262 | jjdelcerro | /**
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154 | * Returns a {@link FeatureAttributeDescriptor} given the attribute name, or
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155 | * null if an attribute with the given name does not exist.
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156 | *
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157 | * @param name of the attribute
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158 | *
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159 | * @return a {@link FeatureAttributeDescriptor}
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160 | */
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161 | public FeatureAttributeDescriptor getAttributeDescriptor(String name); |
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162 | 40435 | jjdelcerro | |
163 | 44262 | jjdelcerro | /**
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164 | * Returns a {@link FeatureAttributeDescriptor} given the attribute index.
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165 | *
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166 | * @param index of the attribute
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167 | *
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168 | * @return a {@link FeatureAttributeDescriptor}
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169 | */
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170 | public FeatureAttributeDescriptor getAttributeDescriptor(int index); |
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171 | 40435 | jjdelcerro | |
172 | 44262 | jjdelcerro | /**
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173 | * Returns an iterator over this FeatureType's attributes. Elements returned
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174 | * by this iterator are of type {@link FeatureAttributeDescriptor}.
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175 | *
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176 | * @return An iterator over this FeatureType's
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177 | * {@link FeatureAttributeDescriptor}s.
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178 | */
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179 | public Iterator iterator(); |
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180 | 40435 | jjdelcerro | |
181 | 44262 | jjdelcerro | /**
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182 | * Returns this FeatureType size. The size of a FeatureType is determined by
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183 | * its number of attributes.
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184 | *
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185 | * @return this FeatureType size, defined as the number of attributes it is
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186 | * composed of.
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187 | *
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188 | */
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189 | public int size(); |
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190 | 40435 | jjdelcerro | |
191 | 44262 | jjdelcerro | public boolean isEmpty(); |
192 | 40435 | jjdelcerro | |
193 | 44262 | jjdelcerro | /**
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194 | * Returns this FeatureType identifier. This identifier must always be equal
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195 | * to a store.
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196 | *
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197 | * @return the identifier.
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198 | */
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199 | public String getId(); |
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200 | 40435 | jjdelcerro | |
201 | 44262 | jjdelcerro | /**
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202 | * Returns the name of the attribute that will be used as default geometry
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203 | * attribute for those processes that require a geometry (for instance
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204 | * rendering).
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205 | *
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206 | * @return name of the default geometry attribute.
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207 | */
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208 | public String getDefaultGeometryAttributeName(); |
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209 | 40435 | jjdelcerro | |
210 | 44262 | jjdelcerro | /**
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211 | * Returns the index of the attribute that will be used as default geometry
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212 | * attribute.
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213 | *
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214 | * @return index of the default geometry attribute.
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215 | */
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216 | public int getDefaultGeometryAttributeIndex(); |
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217 | 40435 | jjdelcerro | |
218 | 44262 | jjdelcerro | /**
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219 | * Returns a list with the SRSs in which this FeatureType geometries are
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220 | * expressed. Normally there may be one SRS for each attribute of type
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221 | * {@link Geometry}.
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222 | *
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223 | * @return a list with the SRS in which this FeatureType geometries are
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224 | * expressed.
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225 | */
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226 | public List getSRSs(); |
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227 | 40435 | jjdelcerro | |
228 | 44262 | jjdelcerro | /**
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229 | * Returns the SRS in which the default geometry attribute is expressed.
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230 | *
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231 | * @return the SRS in which the default geometry attribute is expressed,
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232 | * null if not has a default geometry attribute.
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233 | */
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234 | public IProjection getDefaultSRS();
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235 | 40435 | jjdelcerro | |
236 | 44262 | jjdelcerro | /**
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237 | * Indicates whether this FeatureType has any assigned {@link Evaluator}(s).
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238 | * Evaluators are used to obtain the values for calculated attributes.
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239 | *
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240 | * @return true if this FeatureType has any assigned {@link Evaluator}(s).
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241 | */
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242 | public boolean hasEvaluators(); // FIXME: Quitar del interface y dejar en DefaultFeatureType |
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243 | 40435 | jjdelcerro | |
244 | 44262 | jjdelcerro | /**
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245 | * Indicates whether {@link Feature}(s) of this FeatureType have an OID
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246 | * defined. An OID is the Feature unique identifier.
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247 | *
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248 | * Some stores provide their own OIDs which are always unique (such as
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249 | * Postgre) while others don't support this concept and then it is the
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250 | * library who creates runtime ad-hoc OIDs as it see fits, but then
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251 | * integrity of this OIDs among different work sessions cannot be guaranteed
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252 | * (this is the case for shape files).
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253 | *
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254 | * @return true if this FeatureType has an OID defined, false otherwise.
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255 | *
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256 | */
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257 | public boolean hasOID(); |
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258 | 40435 | jjdelcerro | |
259 | 44262 | jjdelcerro | /**
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260 | * Incicates if attibutes with automatic values are allowed in the source
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261 | *
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262 | * @return true if source supports this feature, false otherwise
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263 | */
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264 | public boolean allowAutomaticValues(); |
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265 | 40435 | jjdelcerro | |
266 | 44262 | jjdelcerro | /**
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267 | * Returns an Array of the FeatureAttributeDescriptor
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268 | 40435 | jjdelcerro | *
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269 | * @return
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270 | */
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271 | 44262 | jjdelcerro | public FeatureAttributeDescriptor[] getAttributeDescriptors(); |
272 | 40435 | jjdelcerro | |
273 | 43739 | jjdelcerro | /**
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274 | 44262 | jjdelcerro | * Returns an Array of the FeatureAttributeDescriptor that compounds the
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275 | * primary key. If not have primary keys return a empty array.
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276 | 44077 | jjdelcerro | *
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277 | * @return
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278 | */
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279 | 44262 | jjdelcerro | public FeatureAttributeDescriptor[] getPrimaryKey(); |
280 | 44077 | jjdelcerro | |
281 | 44435 | jjdelcerro | public boolean hasPrimaryKey(); |
282 | |||
283 | public boolean supportReferences(); |
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284 | |||
285 | 44077 | jjdelcerro | /**
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286 | 44262 | jjdelcerro | * Returns the default geometry FeatureAttributeDescriptor. Return null if
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287 | * it's not set
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288 | 44077 | jjdelcerro | *
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289 | * @return
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290 | */
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291 | 44262 | jjdelcerro | public FeatureAttributeDescriptor getDefaultGeometryAttribute();
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292 | |||
293 | /**
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294 | * Returns the default time FeatureAttributeDescriptor. Return null if it's
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295 | * not set.
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296 | *
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297 | * @return the default time attribute
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298 | */
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299 | public FeatureAttributeDescriptor getDefaultTimeAttribute();
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300 | |||
301 | /**
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302 | * Returns the name of the attribute that will be used as default geometry
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303 | * attribute for those processes that require a geometry (for instance
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304 | * rendering).
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305 | *
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306 | * @return name of the default geometry attribute.
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307 | */
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308 | public String getDefaultTimeAttributeName(); |
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309 | |||
310 | /**
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311 | * Returns the index of the attribute that will be used as default geometry
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312 | * attribute.
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313 | *
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314 | * @return index of the default geometry attribute.
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315 | */
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316 | 44077 | jjdelcerro | public int getDefaultTimeAttributeIndex(); |
317 | |||
318 | /**
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319 | 43739 | jjdelcerro | * Return the store associated to this type.
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320 | 44262 | jjdelcerro | *
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321 | 43739 | jjdelcerro | * @return the FeatureStore of the type.
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322 | */
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323 | 44262 | jjdelcerro | public FeatureStore getStore();
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324 | 40435 | jjdelcerro | |
325 | 44262 | jjdelcerro | public List<FeatureAttributeDescriptor> getFilteredAttributes( |
326 | Predicate<FeatureAttributeDescriptor> filter,
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327 | int max
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328 | ); |
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329 | |||
330 | public List<FeatureAttributeDescriptor> getRecentUseds(); |
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331 | |||
332 | 44439 | jjdelcerro | FeatureStore getAsFeatureStore(); |
333 | 44498 | omartinez | |
334 | public String getNewFieldName(); |
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335 | 44500 | omartinez | /**
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336 | * Return the store associated to this type.
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337 | * It will return Null when it's in not editing mode
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338 | * or the featureType has not been change
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339 | *
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340 | * @return the original FeatureStore of the type.
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341 | */
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342 | public FeatureType getOriginalFeatureType();
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343 | 40435 | jjdelcerro | } |