The base class (to be subclassed) to implement tile loaders for Oracle SDO. More...
#include <ilviews/maps/format/oracle/sdotileload.h>
Public Member Functions | |
virtual IlvMapsError | dbmsRestored () |
Called by the IlvSDOLayer read from an .ilv file, after the connection to an Oracle SDO database has been restored. More... | |
IldDbms * | getDbms () const |
Returns the IldDbms representing the connection to the Oracle database. More... | |
IlvMapsError | getInitStatus () const |
Returns the error code that may have happened during the loader construction. More... | |
virtual IldRequest * | getRequest (IlvTile *tile) |
Returns the request containing the SDO geometries that intersect the specified tile. More... | |
virtual IlvRect * | getSize () |
Returns the bounding box of the data set managed by the tile loader. More... | |
virtual const IlvRect & | getTileOrigin () const |
Returns the origin tile used by the load-on demand mechanism. | |
virtual IlBoolean | isPersistent () const |
Indicates whether this IlvSDOTileLoader is persistent. More... | |
virtual IlvMapsError | load (IlvTile *tile) |
Loads a tile. More... | |
virtual void | release (IlvTile *tile) |
Releases the content of a tile when required by the cache of the layer. More... | |
Public Member Functions inherited from IlvTileLoader | |
virtual void | controllerDeleted (IlvTileController *controller) |
Called when the controller is deleted. More... | |
virtual void | tileDeleted (IlvTile *tile) |
Called when a tile is deleted during the controller destruction. More... | |
Protected Member Functions | |
IlvSDOTileLoader (IldDbms *dbms) | |
Initializes a new instance of IlvSDOTileLoader . More... | |
IldRequest * | executeQuery (const char *query) |
Executes the specified query and exports a trace if the SQL traces are enabled. More... | |
Friends | |
class | IlvObjectSDOLayer |
class | IlvSDOLayer |
The base class (to be subclassed) to implement tile loaders for Oracle SDO.
Library: ilvdbmaps
IlvSDOLayer
.
|
protected |
Initializes a new instance of IlvSDOTileLoader
.
dbms | The database connection. |
|
virtual |
Called by the IlvSDOLayer
read from an .ilv
file, after the connection to an Oracle SDO database has been restored.
IlvMapsError
code. Reimplemented in IlvDefaultSDOTileLoader, and IlvDefaultObjectSDOTileLoader.
|
protected |
Executes the specified query and exports a trace if the SQL traces are enabled.
query | The result set of the executed query. |
IlvSDOUtil::EnableSQLTraces()
. IldDbms* IlvSDOTileLoader::getDbms | ( | ) | const |
Returns the IldDbms
representing the connection to the Oracle database.
IlvMapsError IlvSDOTileLoader::getInitStatus | ( | ) | const |
Returns the error code that may have happened during the loader construction.
|
virtual |
Returns the request containing the SDO geometries that intersect the specified tile.
The default implementation returns 0
.
tile | The tile to be filled with the SDO geometries. |
IldRequest
containing the SDO geometries that intersect the specified tile.load()
. Reimplemented in IlvDefaultSDOTileLoader, and IlvDefaultObjectSDOTileLoader.
|
virtual |
Returns the bounding box of the data set managed by the tile loader.
If the bounding box cannot be computed, this method can return 0
. The IlvSDOLayer
using this object will have an undefined size.
The default implementation returns 0
.
Reimplemented in IlvDefaultSDOTileLoader, and IlvDefaultObjectSDOTileLoader.
|
virtual |
Indicates whether this IlvSDOTileLoader
is persistent.
IlTrue
if the IlvSDOTileLoader
is persistent, IlFalse
otherwise. Implements IlvTileLoader.
|
virtual |
Loads a tile.
The default implementation does nothing and returns IlvMaps::NoError()
.
Implements IlvTileLoader.
Reimplemented in IlvDefaultSDOTileLoader, and IlvDefaultObjectSDOTileLoader.
|
virtual |
Releases the content of a tile when required by the cache of the layer.
tile | The tile to be released. |
Implements IlvTileLoader.