org.geolatte.geom.codec

Class AbstractWkbEncoder

java.lang.Object

org.geolatte.geom.codec.AbstractWkbEncoder

All Implemented Interfaces:

WkbEncoder

Direct Known Subclasses:

MySqlWkbEncoder, PostgisWkbEncoder

abstract class AbstractWkbEncoder
extends java.lang.Object
implements WkbEncoder

Constructor Summary

Constructors

Constructor and Description
AbstractWkbEncoder()

Method Summary

Modifier and Type	Method and Description
protected <P extends Position> int	calculateSize(Geometry<P> geom, boolean includeSrid)
<P extends Position> ByteBuffer	encode(Geometry<P> geometry, ByteOrder byteOrder) Encodes a Geometry into a WKB representation using the specified byte-order.
private <P extends Position> int	getPointByteSize(Geometry<P> geom)
private <P extends Position> int	getPolygonSize(Polygon<P> geom)
protected <P extends Position> WkbVisitor<P>	newWkbVisitor(ByteBuffer output, Geometry<P> geometry)
protected abstract <P extends Position> int	sizeEmptyGeometry(Geometry<P> geometry)
private <P extends Position,G extends Geometry<P>> int	sizeOfGeometryCollection(GeometryCollection<P,G> collection)
protected <P extends Position> void	writeGeometry(Geometry<P> geom, ByteBuffer output)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractWkbEncoder

AbstractWkbEncoder()

Method Detail

encode

public <P extends Position> ByteBuffer encode(Geometry<P> geometry,
                                              ByteOrder byteOrder)

Encodes a Geometry into a WKB representation using the specified byte-order.

Specified by:

encode in interface WkbEncoder

Parameters:

geometry - The Geometry to be encoded as WKB.

byteOrder - The WKB byte order, either XDR or NDR

Returns:

A buffer of bytes that contains the WKB-encoded Geometry.

writeGeometry

protected <P extends Position> void writeGeometry(Geometry<P> geom,
                                                  ByteBuffer output)

newWkbVisitor

protected <P extends Position> WkbVisitor<P> newWkbVisitor(ByteBuffer output,
                                                           Geometry<P> geometry)

calculateSize

protected <P extends Position> int calculateSize(Geometry<P> geom,
                                                 boolean includeSrid)

sizeEmptyGeometry

protected abstract <P extends Position> int sizeEmptyGeometry(Geometry<P> geometry)

getPointByteSize

private <P extends Position> int getPointByteSize(Geometry<P> geom)

getPolygonSize

private <P extends Position> int getPolygonSize(Polygon<P> geom)

sizeOfGeometryCollection

private <P extends Position,G extends Geometry<P>> int sizeOfGeometryCollection(GeometryCollection<P,G> collection)