| 311 | | |
| 312 | | /** Ask a layer to re-"adopt" its previous feature definition object. |
| 313 | | * |
| 314 | | * The aim is that the user doesn't see visible object changes. |
| 315 | | * |
| 316 | | * This method is called if StartTransaction(), CommitTransaction() or |
| 317 | | * RollbackTransaction() has closed and reopened a datasource. |
| 318 | | * |
| 319 | | * The implementation os the method should drop the reference to feature |
| 320 | | * definition object it may have currently, assign the poFeatureDefn as |
| 321 | | * its current definition object, and take a new reference on it. |
| 322 | | * |
| 323 | | * The passed poFeatureDefn object is supposed to be the "same" as |
| 324 | | * the one the layer has currently (as verified with IsSame()) since |
| 325 | | * the emulated datasource wrapper prevents layer structural modifications |
| 326 | | * in cases where the user has already called GetLayerDefn() |
| 327 | | */ |
| 328 | | virtual void ReadoptOldFeatureDefn(OGRDataSource* poDS, |
| 329 | | OGRLayer* poLayer, |
| 330 | | OGRFeatureDefn* poFeatureDefn) = 0; |
