org.geolatte.geom.codec

Class PostgisWktEncoder

java.lang.Object

org.geolatte.geom.codec.PostgisWktEncoder

All Implemented Interfaces:

WktEncoder

Direct Known Subclasses:

DB2WktEncoder, HANAWktEncoder

class PostgisWktEncoder
extends java.lang.Object
implements WktEncoder

Encodes geometries to Postgis WKT/EWKT representations.

This class is not thread-safe.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.StringBuffer	builder
private java.text.NumberFormat	formatter
private java.text.FieldPosition	fp
private boolean	inGeometryCollection
private static int	MAX_FRACTIONAL_DIGITS
private static java.text.DecimalFormatSymbols	US_DECIMAL_FORMAT_SYMBOLS
private static PostgisWktVariant	WKT_WORDS

Constructor Summary

Constructors

Constructor and Description
PostgisWktEncoder() Constructs an instance.

Method Summary

Modifier and Type	Method and Description
private void	addDelimiter()
private void	addEmptyKeyword()
private void	addEndList()
private <P extends Position,G extends Geometry<P>> void	addGeometries(GeometryCollection<P,G> collection, boolean withTag)
private <P extends Position> void	addGeometry(Geometry<P> geometry)
private void	addGeometryTag(Geometry geometry)
private <P extends Position> void	addGeometryText(Geometry<P> geometry)
private <P extends Position> void	addLinearRings(Polygon<P> geometry)
private void	addNumber(double value)
private void	addPoint(double[] coords)
private <P extends Position> void	addPointList(PositionSequence<P> points)
private <P extends Position> void	addRing(LinearRing<P> ring)
private <P extends Position> void	addSridIfValid(Geometry<P> geometry)
private void	addStartList()
private void	addWhitespace()
<P extends Position> java.lang.String	encode(Geometry<P> geometry) Encodes the specified Geometry.
protected PostgisWktVariant	getWktWords()
private void	prepare()
private java.lang.String	result()
protected boolean	skipSrid()

Methods inherited from class java.lang.Object

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

Field Detail

WKT_WORDS

private static final PostgisWktVariant WKT_WORDS

MAX_FRACTIONAL_DIGITS

private static final int MAX_FRACTIONAL_DIGITS

See Also:

Constant Field Values

US_DECIMAL_FORMAT_SYMBOLS

private static final java.text.DecimalFormatSymbols US_DECIMAL_FORMAT_SYMBOLS

fp

private final java.text.FieldPosition fp

formatter

private final java.text.NumberFormat formatter

builder

private java.lang.StringBuffer builder

inGeometryCollection

private boolean inGeometryCollection

Constructor Detail

PostgisWktEncoder

public PostgisWktEncoder()

Constructs an instance.

Method Detail

encode

public <P extends Position> java.lang.String encode(Geometry<P> geometry)

Encodes the specified Geometry.

Specified by:

encode in interface WktEncoder

Parameters:

geometry - the Geometry to encode

Returns:

the WKT representation of the given geometry

skipSrid

protected boolean skipSrid()

prepare

private void prepare()

addSridIfValid

private <P extends Position> void addSridIfValid(Geometry<P> geometry)

addGeometry

private <P extends Position> void addGeometry(Geometry<P> geometry)

addGeometryText

private <P extends Position> void addGeometryText(Geometry<P> geometry)

addGeometries

private <P extends Position,G extends Geometry<P>> void addGeometries(GeometryCollection<P,G> collection,
                                                                      boolean withTag)

addLinearRings

private <P extends Position> void addLinearRings(Polygon<P> geometry)

addRing

private <P extends Position> void addRing(LinearRing<P> ring)

addPointList

private <P extends Position> void addPointList(PositionSequence<P> points)

addEndList

private void addEndList()

addPoint

private void addPoint(double[] coords)

addNumber

private void addNumber(double value)

addWhitespace

private void addWhitespace()

addDelimiter

private void addDelimiter()

addStartList

private void addStartList()

addEmptyKeyword

private void addEmptyKeyword()

addGeometryTag

private void addGeometryTag(Geometry geometry)

result

private java.lang.String result()

getWktWords

protected PostgisWktVariant getWktWords()