org.postgis

Class PointComposedGeom

java.lang.Object

org.postgis.Geometry

org.postgis.ComposedGeom

org.postgis.PointComposedGeom

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

LinearRing, LineString, MultiPoint

public abstract class PointComposedGeom
extends ComposedGeom

PointComposedGeom - base class for all composed geoms that contain only points.

Author:

markus.schaber@logix-tt.com

See Also:

Serialized Form

Field Summary

Fields inherited from class org.postgis.ComposedGeom

EMPTY, subgeoms

Fields inherited from class org.postgis.Geometry

ALLTYPES, dimension, GEOMETRYCOLLECTION, haveMeasure, LINEARRING, LINESTRING, MULTILINESTRING, MULTIPOINT, MULTIPOLYGON, POINT, POLYGON, srid, type, UNKNOWN_SRID

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PointComposedGeom(int type)
protected	PointComposedGeom(int type, Point[] points)
	PointComposedGeom(int type, String value)
	PointComposedGeom(int type, String value, boolean haveM)

Method Summary

Modifier and Type	Method and Description
protected Geometry[]	createSubGeomArray(int pointcount) Return the appropriate instance of the sub-geometry array - this encapsulates subclass specific array instantiation
protected Geometry	createSubGeomInstance(String token, boolean haveM) Return the appropriate instance of the sub-geometry - this encapsulates subclass specific constructor calls
Point	getPoint(int idx) optimized version
Point[]	getPoints() Get the underlying Point array
protected void	innerWKT(StringBuffer sb) Render the "inner" part of the WKT (inside the brackets) into the StringBuffer.
int	numPoints() optimized version

Methods inherited from class org.postgis.ComposedGeom

checkConsistency, equalsintern, getFirstPoint, getLastPoint, getSubGeometry, hashCode, isEmpty, iterator, mediumWKT, numGeoms, setSrid

Methods inherited from class org.postgis.Geometry

equals, equals, getDimension, getSrid, getType, getTypeString, getTypeString, getValue, initSRID, isMeasured, outerWKT, outerWKT, parseSRID, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PointComposedGeom

protected PointComposedGeom(int type)

PointComposedGeom

protected PointComposedGeom(int type,
                            Point[] points)

PointComposedGeom

public PointComposedGeom(int type,
                         String value)
                  throws SQLException

Throws:

SQLException

PointComposedGeom

public PointComposedGeom(int type,
                         String value,
                         boolean haveM)
                  throws SQLException

Throws:

SQLException

Method Detail

createSubGeomInstance

protected Geometry createSubGeomInstance(String token,
                                         boolean haveM)
                                  throws SQLException

Description copied from class: ComposedGeom

Return the appropriate instance of the sub-geometry - this encapsulates subclass specific constructor calls

Specified by:

createSubGeomInstance in class ComposedGeom

Parameters:

token - The token containing the value for the sub-geometry

haveM - flag to indicate the existence of a measure

Returns:

the new sub-geometry

Throws:

SQLException - if a SQLException is thrown

createSubGeomArray

protected Geometry[] createSubGeomArray(int pointcount)

Description copied from class: ComposedGeom

Return the appropriate instance of the sub-geometry array - this encapsulates subclass specific array instantiation

Specified by:

createSubGeomArray in class ComposedGeom

Parameters:

pointcount - number of elements in the array

Returns:

Geometry array corresponding to the sub-geometry

innerWKT

protected void innerWKT(StringBuffer sb)

Description copied from class: Geometry

Render the "inner" part of the WKT (inside the brackets) into the StringBuffer.

Overrides:

innerWKT in class ComposedGeom

Parameters:

sb - StringBuffer to render into

numPoints

public int numPoints()

optimized version

Overrides:

numPoints in class ComposedGeom

Returns:

number of points in the geometry

getPoint

public Point getPoint(int idx)

optimized version

Overrides:

getPoint in class ComposedGeom

Parameters:

idx - the index of the point, from 0 to numPoints()-1;

Returns:

nth point in the geometry

getPoints

public Point[] getPoints()

Get the underlying Point array

Returns:

an array of Points within this geometry