root / branches / v2_0_0_prep / libraries / libFMap_dal / src / org / gvsig / fmap / dal / feature / FeatureStore.java @ 25481
History | View | Annotate | Download (14.3 KB)
| 1 |
package org.gvsig.fmap.dal.feature; |
|---|---|
| 2 |
|
| 3 |
import java.util.List; |
| 4 |
|
| 5 |
import org.gvsig.fmap.dal.DataServerExplorer; |
| 6 |
import org.gvsig.fmap.dal.DataStore; |
| 7 |
import org.gvsig.fmap.dal.DataStoreParameters; |
| 8 |
import org.gvsig.fmap.dal.exception.DataException; |
| 9 |
import org.gvsig.fmap.dal.exception.ReadException; |
| 10 |
import org.gvsig.fmap.dal.feature.exception.FeatureIndexException; |
| 11 |
import org.gvsig.fmap.dal.feature.exception.NeedEditingModeException; |
| 12 |
import org.gvsig.fmap.geom.Geometry; |
| 13 |
import org.gvsig.fmap.geom.primitive.Envelope; |
| 14 |
import org.gvsig.tools.observer.Observer; |
| 15 |
import org.gvsig.tools.undo.UndoRedoStack; |
| 16 |
|
| 17 |
/**
|
| 18 |
* <p>
|
| 19 |
* A FeatureStore is a type of store whose data consists on sets of {@link Feature}(s).
|
| 20 |
* {@link Feature}(s) from the same FeatureStore can be of different {@link FeatureType}(s)
|
| 21 |
* (as in GML format for instance).</p>
|
| 22 |
*
|
| 23 |
* <p>FeatureStore allows:</p>
|
| 24 |
* <ul>
|
| 25 |
* <li>Obtaining the default {@link FeatureType}. A FeatureStore always has one and only one default FeatureType.
|
| 26 |
* <li>Obtaining the list of {@link FeatureType}(s) defined in the FeatureStore.
|
| 27 |
* <li>Obtaining, filtering and sorting subsets of data ({@link FeatureSet}) through {@link FeatureQuery}, as well
|
| 28 |
* as background loading.
|
| 29 |
* <li>Obtaining the total {@link Envelope} (AKA bounding box or extent) of the store.
|
| 30 |
* <li>Support for editing {@link FeatureType}(s).
|
| 31 |
* <li>Obtaining information about contained {@link Geometry} types.
|
| 32 |
* <li>Exporting to another store.
|
| 33 |
* <li>Indexing.
|
| 34 |
* <li>Selection.
|
| 35 |
* <li>Locks management.
|
| 36 |
* </ul>
|
| 37 |
*
|
| 38 |
*/
|
| 39 |
public interface FeatureStore extends DataStore, UndoRedoStack { |
| 40 |
|
| 41 |
/** Indicates that this store is in query mode */
|
| 42 |
final static int MODE_QUERY = 0; |
| 43 |
|
| 44 |
/** Indicates that this store is in full edit mode */
|
| 45 |
final static int MODE_FULLEDIT = 1; |
| 46 |
|
| 47 |
/** Indicates that this store is in append mode */
|
| 48 |
final static int MODE_APPEND = 2; |
| 49 |
|
| 50 |
/*
|
| 51 |
* =============================================================
|
| 52 |
*
|
| 53 |
* information related services
|
| 54 |
*/
|
| 55 |
|
| 56 |
/**
|
| 57 |
* Indicates whether this store allows writing.
|
| 58 |
*
|
| 59 |
* @return
|
| 60 |
* true if this store can be written, false if not.
|
| 61 |
*/
|
| 62 |
public boolean allowWrite(); |
| 63 |
|
| 64 |
/**
|
| 65 |
* Returns this store's default {@link FeatureType}.
|
| 66 |
*
|
| 67 |
* @return
|
| 68 |
* this store's default {@link FeatureType}.
|
| 69 |
*
|
| 70 |
* @throws DataException
|
| 71 |
*/
|
| 72 |
public FeatureType getDefaultFeatureType() throws DataException; |
| 73 |
|
| 74 |
/**
|
| 75 |
* Returns this store's {@link FeatureType}(s).
|
| 76 |
*
|
| 77 |
* @return
|
| 78 |
* a list with this store's {@link FeatureType}(s).
|
| 79 |
*
|
| 80 |
* @throws DataException
|
| 81 |
*/
|
| 82 |
public List getFeatureTypes() throws DataException; |
| 83 |
|
| 84 |
/**
|
| 85 |
* Returns this store's parameters.
|
| 86 |
*
|
| 87 |
* @return
|
| 88 |
* {@link DataStoreParameters} containing this store's parameters
|
| 89 |
*/
|
| 90 |
public DataStoreParameters getParameters();
|
| 91 |
|
| 92 |
/**
|
| 93 |
*@throws DataException
|
| 94 |
* @deprecated Mirar de cambiarlo a metadatos
|
| 95 |
*/
|
| 96 |
public boolean canWriteGeometry(int gvSIGgeometryType) throws DataException; |
| 97 |
|
| 98 |
/**
|
| 99 |
* Returns this store's total envelope (extent).
|
| 100 |
*
|
| 101 |
* @return
|
| 102 |
* this store's total envelope (extent).
|
| 103 |
*/
|
| 104 |
public Envelope getEnvelope() throws DataException; |
| 105 |
|
| 106 |
/**
|
| 107 |
*
|
| 108 |
* @deprecated use getDefaultFeatureType().getDefaultSRS()
|
| 109 |
* @return
|
| 110 |
* @throws DataException
|
| 111 |
*/
|
| 112 |
public String getSRSDefaultGeometry() throws DataException; |
| 113 |
|
| 114 |
/**
|
| 115 |
* Exports this store to another store.
|
| 116 |
*
|
| 117 |
* @param explorer
|
| 118 |
* {@link DataServerExplorer} target
|
| 119 |
* @param params
|
| 120 |
* New parameters of this store that will be used on the target explorer
|
| 121 |
*
|
| 122 |
* @throws DataException
|
| 123 |
*/
|
| 124 |
public void export(DataServerExplorer explorer, NewFeatureStoreParameters params) |
| 125 |
throws DataException;
|
| 126 |
|
| 127 |
/*
|
| 128 |
* =============================================================
|
| 129 |
*
|
| 130 |
* Query related services
|
| 131 |
*/
|
| 132 |
|
| 133 |
/**
|
| 134 |
* Returns all available features in the store.
|
| 135 |
*
|
| 136 |
* @return a collection of features
|
| 137 |
* @throws ReadException
|
| 138 |
* if there is any error while reading the features
|
| 139 |
*/
|
| 140 |
FeatureSet getFeatureSet() throws DataException;
|
| 141 |
|
| 142 |
/**
|
| 143 |
* Returns a subset of features taking into account the properties and
|
| 144 |
* restrictions of the FeatureQuery.
|
| 145 |
*
|
| 146 |
* @param featureQuery
|
| 147 |
* defines the characteristics of the features to return
|
| 148 |
* @return a collection of features
|
| 149 |
* @throws ReadException
|
| 150 |
* if there is any error while reading the features
|
| 151 |
*/
|
| 152 |
FeatureSet getFeatureSet(FeatureQuery featureQuery) |
| 153 |
throws DataException;
|
| 154 |
|
| 155 |
/**
|
| 156 |
* Loads a subset of features taking into account the properties and
|
| 157 |
* restrictions of the FeatureQuery. Feature loading is performed by calling
|
| 158 |
* the Observer, once each loaded Feature.
|
| 159 |
*
|
| 160 |
* @param featureQuery
|
| 161 |
* defines the characteristics of the features to return
|
| 162 |
* @param observer
|
| 163 |
* to be notified of each loaded Feature
|
| 164 |
* @throws DataException
|
| 165 |
* if there is any error while loading the features
|
| 166 |
*/
|
| 167 |
void getFeatureSet(FeatureQuery featureQuery, Observer observer) |
| 168 |
throws DataException;
|
| 169 |
|
| 170 |
/**
|
| 171 |
* Loads all available feature in the store. The loading of Features is
|
| 172 |
* performed by calling the Observer, once each loaded Feature.
|
| 173 |
*
|
| 174 |
* @param observer
|
| 175 |
* to be notified of each loaded Feature
|
| 176 |
* @throws DataException
|
| 177 |
* if there is any error while loading the features
|
| 178 |
*/
|
| 179 |
void getFeatureSet(Observer observer) throws DataException; |
| 180 |
|
| 181 |
/**
|
| 182 |
* Returns the feature given its reference.
|
| 183 |
*
|
| 184 |
* @param reference
|
| 185 |
* a unique FeatureReference
|
| 186 |
* @return
|
| 187 |
* The Feature
|
| 188 |
*
|
| 189 |
* @throws DataException
|
| 190 |
*
|
| 191 |
*/
|
| 192 |
public Feature getFeatureByReference(FeatureReference reference) throws DataException; |
| 193 |
|
| 194 |
/**
|
| 195 |
* Returns the feature given its reference and feature type.
|
| 196 |
*
|
| 197 |
* @param reference
|
| 198 |
* a unique FeatureReference
|
| 199 |
*
|
| 200 |
* @param featureType
|
| 201 |
* FeatureType to which the requested Feature belongs
|
| 202 |
*
|
| 203 |
* @return
|
| 204 |
* The Feature
|
| 205 |
*
|
| 206 |
* @throws DataException
|
| 207 |
*
|
| 208 |
*/
|
| 209 |
public Feature getFeatureByReference(FeatureReference reference, FeatureType featureType)
|
| 210 |
throws DataException;
|
| 211 |
|
| 212 |
/*
|
| 213 |
* =============================================================
|
| 214 |
*
|
| 215 |
* Editing related services
|
| 216 |
*/
|
| 217 |
|
| 218 |
/**
|
| 219 |
* Enters editing state.
|
| 220 |
*/
|
| 221 |
public void edit() throws DataException; |
| 222 |
|
| 223 |
/**
|
| 224 |
* Enters editing state specifying the editing mode.
|
| 225 |
*
|
| 226 |
* @param mode
|
| 227 |
*
|
| 228 |
* @throws DataException
|
| 229 |
*/
|
| 230 |
public void edit(int mode) throws DataException; |
| 231 |
|
| 232 |
/**
|
| 233 |
* Cancels all editing since the last edit().
|
| 234 |
*
|
| 235 |
* @throws DataException
|
| 236 |
*/
|
| 237 |
public void cancelEditing() throws DataException; |
| 238 |
|
| 239 |
/**
|
| 240 |
* Exits editing state.
|
| 241 |
*
|
| 242 |
* @throws DataException
|
| 243 |
*/
|
| 244 |
public void finishEditing() throws DataException; |
| 245 |
|
| 246 |
/**
|
| 247 |
* Indicates whether this store is in editing state.
|
| 248 |
*
|
| 249 |
* @return
|
| 250 |
* true if this store is in editing state, false if not.
|
| 251 |
*/
|
| 252 |
public boolean isEditing(); |
| 253 |
|
| 254 |
/**
|
| 255 |
* Indicates whether this store is in appending state. In this state
|
| 256 |
* the new features are automatically inserted at the end of the
|
| 257 |
* {@link FeatureSet}.
|
| 258 |
*
|
| 259 |
* @return
|
| 260 |
* true if this store is in appending state.
|
| 261 |
*/
|
| 262 |
public boolean isAppending(); |
| 263 |
|
| 264 |
/**
|
| 265 |
* Updates a {@link FeatureType} in the store with the changes in the {@link EditableFeatureType}.
|
| 266 |
*
|
| 267 |
* @param featureType
|
| 268 |
* an {@link EditableFeatureType} with the changes.
|
| 269 |
*
|
| 270 |
* @throws DataException
|
| 271 |
*/
|
| 272 |
public void update(EditableFeatureType featureType) throws DataException; |
| 273 |
|
| 274 |
/**
|
| 275 |
* Updates a {@link Feature} in the store with the changes in the {@link EditableFeature}.
|
| 276 |
*
|
| 277 |
* @param feature
|
| 278 |
* the feature to be updated
|
| 279 |
*
|
| 280 |
* @throws DataException
|
| 281 |
*/
|
| 282 |
public void update(EditableFeature feature) throws DataException; |
| 283 |
|
| 284 |
/**
|
| 285 |
* Deletes a {@link Feature} from the store.
|
| 286 |
*
|
| 287 |
* @param feature
|
| 288 |
* The feature to be deleted.
|
| 289 |
*
|
| 290 |
* @throws DataException
|
| 291 |
*/
|
| 292 |
public void delete(Feature feature) throws DataException; |
| 293 |
|
| 294 |
/**
|
| 295 |
* Inserts a {@link Feature} in the store.
|
| 296 |
*
|
| 297 |
* @param feature
|
| 298 |
* The feature to be inserted
|
| 299 |
*
|
| 300 |
* @throws DataException
|
| 301 |
*/
|
| 302 |
public void insert(EditableFeature feature) throws DataException; |
| 303 |
|
| 304 |
/**
|
| 305 |
* Creates a new feature using the default feature type and
|
| 306 |
* returns it as an {@link EditableFeature}
|
| 307 |
*
|
| 308 |
* @return
|
| 309 |
* a new feature in editable state
|
| 310 |
*
|
| 311 |
* @throws DataException
|
| 312 |
*/
|
| 313 |
public EditableFeature createNewFeature() throws DataException; |
| 314 |
|
| 315 |
/**
|
| 316 |
* Creates a new feature of the given {@link FeatureType} and uses
|
| 317 |
* the given {@link Feature} as default values to initialize it.
|
| 318 |
*
|
| 319 |
* @param type
|
| 320 |
* the new feature's feature type
|
| 321 |
*
|
| 322 |
* @param defaultValues
|
| 323 |
* a feature whose values are used as default values for the new feature.
|
| 324 |
*
|
| 325 |
* @return
|
| 326 |
* the new feature.
|
| 327 |
*
|
| 328 |
* @throws DataException
|
| 329 |
*/
|
| 330 |
public EditableFeature createNewFeature(FeatureType type,
|
| 331 |
Feature defaultValues) throws DataException;
|
| 332 |
|
| 333 |
/**
|
| 334 |
* Creates a new feature of the given {@link FeatureType}. The flag
|
| 335 |
* defaultValues is used to indicate whether the new feature should be
|
| 336 |
* initialized with default values or not.
|
| 337 |
*
|
| 338 |
* @param type
|
| 339 |
* the new feature's feature type
|
| 340 |
*
|
| 341 |
* @param defaultValues
|
| 342 |
* if true the new feature is initialized with each attribute's default value.
|
| 343 |
*
|
| 344 |
* @return
|
| 345 |
* the new feature
|
| 346 |
*
|
| 347 |
* @throws DataException
|
| 348 |
*/
|
| 349 |
public EditableFeature createNewFeature(FeatureType type,
|
| 350 |
boolean defaultValues) throws DataException; |
| 351 |
|
| 352 |
/**
|
| 353 |
* Creates a new feature of default {@link FeatureType}. The flag
|
| 354 |
* defaultValues is used to indicate whether the new feature should be
|
| 355 |
* initialized with default values or not.
|
| 356 |
*
|
| 357 |
* @param defaultValues
|
| 358 |
* if true the new feature is initialized with each attribute's default value.
|
| 359 |
*
|
| 360 |
* @return
|
| 361 |
* the new feature
|
| 362 |
*
|
| 363 |
* @throws DataException
|
| 364 |
*/
|
| 365 |
public EditableFeature createNewFeature(boolean defaultValues) |
| 366 |
throws DataException;
|
| 367 |
|
| 368 |
/**
|
| 369 |
* Applies the validation rules associated to the given mode to the active {@link FeatureSet}.
|
| 370 |
*
|
| 371 |
* @param mode
|
| 372 |
* can be one of {MODE_QUERY, MODE_FULLEDIT, MODE_APPEND}
|
| 373 |
*
|
| 374 |
* @throws DataException
|
| 375 |
*/
|
| 376 |
public void validateFeatures(int mode) throws DataException; |
| 377 |
|
| 378 |
/**
|
| 379 |
* Indicates whether this store supports append mode.
|
| 380 |
*
|
| 381 |
* @return
|
| 382 |
* true if this store supports append mode.
|
| 383 |
*/
|
| 384 |
public boolean isAppendModeSupported(); |
| 385 |
|
| 386 |
/**
|
| 387 |
* Initiates an editing group. This is typically used to group
|
| 388 |
* series of store editing operations.
|
| 389 |
*
|
| 390 |
* @param description
|
| 391 |
* Description of the editing group.
|
| 392 |
*
|
| 393 |
* @throws NeedEditingModeException
|
| 394 |
*/
|
| 395 |
public void beginEditingGroup(String description) |
| 396 |
throws NeedEditingModeException;
|
| 397 |
|
| 398 |
/**
|
| 399 |
* Finishes an editing group.
|
| 400 |
*
|
| 401 |
* @throws NeedEditingModeException
|
| 402 |
*/
|
| 403 |
public void endEditingGroup() throws NeedEditingModeException; |
| 404 |
|
| 405 |
/*
|
| 406 |
* =============================================================
|
| 407 |
*
|
| 408 |
* Index related services
|
| 409 |
*/
|
| 410 |
|
| 411 |
/**
|
| 412 |
* Creates a FeatureIndex with name indexName, given the attributeName and its featureType.
|
| 413 |
*
|
| 414 |
* @param featureType
|
| 415 |
* The FeatureType to which the indexed attribute belongs.
|
| 416 |
*
|
| 417 |
* @param attributeName
|
| 418 |
* The name of the attributed to be indexed
|
| 419 |
*
|
| 420 |
* @param indexName
|
| 421 |
* The index name
|
| 422 |
*
|
| 423 |
* @return
|
| 424 |
* the resulting FeatureIndex
|
| 425 |
*
|
| 426 |
*
|
| 427 |
* @throws FeatureIndexException
|
| 428 |
*/
|
| 429 |
public FeatureIndex createIndex(FeatureType featureType,
|
| 430 |
String attributeName, String indexName) throws DataException; |
| 431 |
|
| 432 |
/**
|
| 433 |
* Creates a FeatureIndex with name indexName, given the attributeName and its featureType.
|
| 434 |
* This method is intended for background indexing. It receives an observer that will be notified
|
| 435 |
* by the process.
|
| 436 |
*
|
| 437 |
* @param featureType
|
| 438 |
* The FeatureType to which the indexed attribute belongs.
|
| 439 |
*
|
| 440 |
* @param attributeName
|
| 441 |
* The name of the attributed to be indexed
|
| 442 |
*
|
| 443 |
* @param indexName
|
| 444 |
* The index name
|
| 445 |
*
|
| 446 |
* @param observer
|
| 447 |
* an observer that will be notified of the indexing process progress.
|
| 448 |
*
|
| 449 |
* @return
|
| 450 |
* the resulting FeatureIndex
|
| 451 |
*
|
| 452 |
*
|
| 453 |
* @throws FeatureIndexException
|
| 454 |
*/
|
| 455 |
public FeatureIndex createIndex(FeatureType featureType,
|
| 456 |
String attributeName, String indexName, Observer observer) throws DataException; |
| 457 |
/**
|
| 458 |
* Returns a FeatureIndexes structure containing all available indexes in
|
| 459 |
* the store.
|
| 460 |
*
|
| 461 |
* @return
|
| 462 |
*/
|
| 463 |
public FeatureIndexes getIndexes();
|
| 464 |
|
| 465 |
/*
|
| 466 |
* =============================================================
|
| 467 |
*
|
| 468 |
* Selection related services
|
| 469 |
*/
|
| 470 |
|
| 471 |
/**
|
| 472 |
* Sets the selection to the passed {@link FeatureSet}
|
| 473 |
*
|
| 474 |
* @param selection
|
| 475 |
* A {@link FeatureSet} with the requested selection
|
| 476 |
*/
|
| 477 |
public void setSelection(FeatureSet selection) throws DataException; |
| 478 |
|
| 479 |
/**
|
| 480 |
* Creates a {@link FeatureSelection}
|
| 481 |
*
|
| 482 |
* @return
|
| 483 |
* a {@link FeatureSelection}
|
| 484 |
*
|
| 485 |
* @throws DataException
|
| 486 |
*/
|
| 487 |
public FeatureSelection createFeatureSelection() throws DataException; |
| 488 |
|
| 489 |
/**
|
| 490 |
* Returns the current {@link FeatureSelection}.
|
| 491 |
*
|
| 492 |
* @return
|
| 493 |
* current {@link FeatureSelection}.
|
| 494 |
*
|
| 495 |
* @throws DataException
|
| 496 |
*/
|
| 497 |
public FeatureSelection getFeatureSelection() throws DataException; |
| 498 |
|
| 499 |
/*
|
| 500 |
* =============================================================
|
| 501 |
*
|
| 502 |
* Lock related services
|
| 503 |
*/
|
| 504 |
|
| 505 |
/**
|
| 506 |
* Indicates whether this store supports locks.
|
| 507 |
*
|
| 508 |
* @return
|
| 509 |
* true if this store supports locks, false if not.
|
| 510 |
*/
|
| 511 |
public boolean isLocksSupported(); |
| 512 |
|
| 513 |
/**
|
| 514 |
* Returns the set of locked features
|
| 515 |
*
|
| 516 |
* @return
|
| 517 |
* set of locked features
|
| 518 |
*
|
| 519 |
* @throws DataException
|
| 520 |
*/
|
| 521 |
public FeatureSet getLocks() throws DataException; |
| 522 |
|
| 523 |
/*
|
| 524 |
* =============================================================
|
| 525 |
* Transforms related services
|
| 526 |
* =============================================================
|
| 527 |
*/
|
| 528 |
|
| 529 |
/**
|
| 530 |
* Returns this store transforms
|
| 531 |
*
|
| 532 |
* @return
|
| 533 |
* this store transforms
|
| 534 |
*/
|
| 535 |
public FeatureStoreTransforms getTransforms();
|
| 536 |
|
| 537 |
/**
|
| 538 |
* Returns a new {@link FeatureQuery} associated to this store.
|
| 539 |
*
|
| 540 |
* @return
|
| 541 |
* a new {@link FeatureQuery} associated to this store.
|
| 542 |
*/
|
| 543 |
public FeatureQuery createFeatureQuery();
|
| 544 |
} |
| 545 |
|