org.gvsig.fmap.geom.operation.fromwkb
Class WKBParser2

java.lang.Object
  org.gvsig.fmap.geom.operation.fromwkb.WKBParser2

public class WKBParser2
extends Object

Parse binary representation of geometries. Currently, only text rep (hexed) implementation is tested. It should be easy to add char[] and CharSequence ByteGetter instances, although the latter one is not compatible with older jdks. I did not implement real unsigned 32-bit integers or emulate them with long, as both java Arrays and Strings currently can have only 2^31-1 elements (bytes), so we cannot even get or build Geometries with more than approx. 2^28 coordinates (8 bytes each).

Author:

markus.schaber@logi-track.com

Constructor Summary

WKBParser2()

Method Summary

Geometry	parse(byte[] value) Parse a binary encoded geometry.
protected Geometry	parseGeometry(ByteBuffer data) Parse a geometry starting at offset.
protected void	parseTypeAndSRID(ByteBuffer data)

Methods inherited from class java.lang.Object

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

Constructor Detail

WKBParser2

public WKBParser2()

Throws:

GeometryTypeNotValidException

GeometryTypeNotSupportedException

Method Detail

parse

public Geometry parse(byte[] value)
               throws CreateGeometryException

Parse a binary encoded geometry. Is synchronized to protect offset counter. (Unfortunately, Java does not have neither call by reference nor multiple return values.)

Throws:

CreateGeometryException

parseTypeAndSRID

protected void parseTypeAndSRID(ByteBuffer data)

parseGeometry

protected Geometry parseGeometry(ByteBuffer data)
                          throws CreateGeometryException

Parse a geometry starting at offset.

Throws:

CreateGeometryException