ilog.views.maps.format.oracle

Class IlvSDOUtil

java.lang.Object

ilog.views.maps.format.oracle.IlvSDOUtil

public class IlvSDOUtil
extends Object

Utility class for basic SDO requests.

Since:

JViews 3.0

Field Summary

Fields

Modifier and Type	Field and Description
static String	ALL_GID_EXTENT An Oracle constant for a method of estimation of the tiling level based on the gid extent.
static String	AVERAGE_GID_EXTENT An Oracle constant for a method of estimation of the tiling level based on the gid average extent.
static String	LAYER_EXTENT An Oracle constant for a method of estimation of the tiling level based on the layer extent.

Method Summary

Modifier and Type	Method and Description
static boolean	CheckLayerExistence(Connection connection, String ownerName, String layerName) Checks whether the given SDO layer exists.
static boolean	CheckSdoExistence(Connection connection) Checks whether the SDO extension is in the database.
static void	Drop(Connection connection, String layerName, String ownerName) Drops the four SDO tables corresponding to the current layerName.
static void	EnableSQLTraces(boolean enable) Sets the trace mode for the SQL queries.
static int	EstimateTilingLevel(Connection connection, String layerName, String typeOfEstimate, int maxTiles) Performs a query to the Oracle database that estimates the tiling level for the specified layer.
static String[]	GetAllLayers(Connection connection, String ownerName) Returns a String array made up of all the available SDO layers for the given owner name.
static int	GetGeometriesCount(Connection connection, String layerName) Returns the number of geometries contained in the [layerName]_SDOGEOM table.
static boolean	SQLTracesEnabled() Returns true if the SQL trace mode is enabled.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LAYER_EXTENT

public static final String LAYER_EXTENT

An Oracle constant for a method of estimation of the tiling level based on the layer extent.

See Also:

EstimateTilingLevel(java.sql.Connection, java.lang.String, java.lang.String, int), Constant Field Values

ALL_GID_EXTENT

public static final String ALL_GID_EXTENT

An Oracle constant for a method of estimation of the tiling level based on the gid extent.

See Also:

EstimateTilingLevel(java.sql.Connection, java.lang.String, java.lang.String, int), Constant Field Values

AVERAGE_GID_EXTENT

public static final String AVERAGE_GID_EXTENT

An Oracle constant for a method of estimation of the tiling level based on the gid average extent.

See Also:

EstimateTilingLevel(java.sql.Connection, java.lang.String, java.lang.String, int), Constant Field Values

Method Detail

CheckSdoExistence

public static final boolean CheckSdoExistence(Connection connection)
                                       throws SQLException

Checks whether the SDO extension is in the database.

Parameters:

connection - The connection.

Throws:

SQLException

CheckLayerExistence

public static final boolean CheckLayerExistence(Connection connection,
                                                String ownerName,
                                                String layerName)
                                         throws SQLException

Checks whether the given SDO layer exists. The name of the owner in the database is indicated by userName.

Parameters:

connection - The connection.

ownerName - The Oracle owner of the layer table in the database.

layerName - The name of the SDO layer.

Throws:

SQLException

GetAllLayers

public static final String[] GetAllLayers(Connection connection,
                                          String ownerName)
                                   throws SQLException

Returns a String array made up of all the available SDO layers for the given owner name.

Parameters:

connection - The connection.

ownerName - The Oracle owner of the layer table in the database.

Throws:

SQLException

Drop

public static final void Drop(Connection connection,
                              String layerName,
                              String ownerName)
                       throws SQLException

Drops the four SDO tables corresponding to the current layerName. Calling this method may throw the following SQLException: "Table or View does not exist".

Parameters:

connection - The connection.

layerName - The SDO layer name.

ownerName - The Oracle owner of the layer table in the database.

Throws:

SQLException

GetGeometriesCount

public static final int GetGeometriesCount(Connection connection,
                                           String layerName)
                                    throws SQLException

Returns the number of geometries contained in the [layerName]_SDOGEOM table.

Parameters:

connection - The connection.

layerName - The SDO layer name.

Throws:

SQLException

EstimateTilingLevel

public static final int EstimateTilingLevel(Connection connection,
                                            String layerName,
                                            String typeOfEstimate,
                                            int maxTiles)
                                     throws SQLException

Performs a query to the Oracle database that estimates the tiling level for the specified layer.

Parameters:

connection - The connection.

layerName - The SDO layer name.

typeOfEstimate - The tiling level estimation method.

maxTiles - The maximum number of tiles required.

Throws:

SQLException

See Also:

LAYER_EXTENT, ALL_GID_EXTENT, AVERAGE_GID_EXTENT

EnableSQLTraces

public static void EnableSQLTraces(boolean enable)

Sets the trace mode for the SQL queries. By default, the mode is "turned off".

SQLTracesEnabled

public static final boolean SQLTracesEnabled()

Returns true if the SQL trace mode is enabled.