Skip navigation links

oracle.spatial.util
Class WKBasis

java.lang.Object
oracle.spatial.util.WKBasis

All Implemented Interfaces:

WKAdapter

Direct Known Subclasses:

WKB, WKT

public abstract class WKBasis

extends java.lang.Object

implements WKAdapter

This class provides some implementations common to WKB and WKT, particularly the translation between WKB/WKT and STRUCT. This translation is based on the translation between WKB/WKT and JGeometry (which is specific to the WKB and WKT subclasses of this class).

Constructor Summary

WKBasis()

WKBasis(ByteOrder defaultByteOrder)

Method Summary

byte[]	fromJGeometry(JGeometry geom) This transforms a JGeometry to a WKB/WKT geometry.
byte[]	fromSTRUCT(STRUCT geom) Creates a WKB/WKT geometry from a STRUCT object.
JGeometry	toJGeometry(byte[] wkb) This transforms a WKB/WKT geometry to a JGeometry.
STRUCT	toSTRUCT(byte[] wkContent, java.sql.Connection conn) Convert the given WKB/WKT geometry into an Oracle JDBC STRUCT object.

Methods inherited from class java.lang.Object

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

Constructor Detail

WKBasis

public WKBasis(ByteOrder defaultByteOrder)

WKBasis

public WKBasis()

Method Detail

fromJGeometry

public byte[] fromJGeometry(JGeometry geom)
                     throws GeometryExceptionWithContext

Description copied from interface: WKAdapter

This transforms a JGeometry to a WKB/WKT geometry.

Specified by:

fromJGeometry in interface WKAdapter

Parameters:

geom - a JGeometry representing the Oracle Spatial geometry

Returns:

a byte[] representing the WKB/WKT geometry

Throws:

GeometryExceptionWithContext

toSTRUCT

public final STRUCT toSTRUCT(byte[] wkContent,
                             java.sql.Connection conn)
                      throws java.sql.SQLException,
                             GeometryExceptionWithContext

Convert the given WKB/WKT geometry into an Oracle JDBC STRUCT object. You can then bind the STRUCT object to a SQL DML statment. This function is final, for it calls the function toJGeometry, which is not final. Any code specific to WKB/WKT should be in toJGeometry.

Specified by:

toSTRUCT in interface WKAdapter

Parameters:

wkContent - the WKB/WKT geometry (byte array) to be converted

conn - the connection to be used

Returns:

an Oracle STRUCT object when successful; otherwise null

Throws:

java.sql.SQLException

GeometryExceptionWithContext

fromSTRUCT

public final byte[] fromSTRUCT(STRUCT geom)
                        throws java.sql.SQLException,
                               GeometryExceptionWithContext

Creates a WKB/WKT geometry from a STRUCT object. This function is final, for it calls the function fromJGeometry, which is not final. Any code specific to WKB/WKT should be in fromJGeometry.

Specified by:

fromSTRUCT in interface WKAdapter

Parameters:

geom - the STRUCT object from an oracle result set

Returns:

a WKB/WKT geometry (byte array) if successful; otherwise null

Throws:

java.sql.SQLException

GeometryExceptionWithContext

toJGeometry

public JGeometry toJGeometry(byte[] wkb)
                      throws GeometryExceptionWithContext

Description copied from interface: WKAdapter

This transforms a WKB/WKT geometry to a JGeometry.

Specified by:

toJGeometry in interface WKAdapter

Parameters:

wkb - a byte[] representing the WKB/WKT geometry

Returns:

a JGeometry representing the Oracle Spatial geometry

Throws:

GeometryExceptionWithContext

Skip navigation links