org.geotools.geometry.jts

Class GeometryCollector

Object

GeometryCollector

public class GeometryCollector
extends Object

A stateful geometry collector that will add all geometries into a single resulting geometry collection with the following properties:

• the elements of the resulting geometry are simple geometries, adding a geometry collection will result in it being flattened
• the resulting geometry collection type will match its contents, a generic geometry collection will be used only in case of heterogeneous contents
• all geometries will be cloned using the provided geometry factory (one based on a PackedCoordinateSequence is used by default to reduce memory usage)

Author:

Andrea Aime - GeoSolutions

Constructor Summary

Constructors

Constructor and Description
GeometryCollector()

Method Summary

Modifier and Type	Method and Description
void	add(Geometry g) Adds a geometry to the collector
GeometryCollection	collect() Returns a geometry collection containing all of the geometries collected in the process
GeometryCollection	collectInternal()
GeometryFactory	getFactory() Returns the geometry factory used to deep clone the geometries while collecting them (if null no cloning will happen)
long	getMaxCoordinates() Returns the maximum number of coordinates this collector is allowed to keep in the resulting geometry
void	setFactory(GeometryFactory factory) Sets the geometry factory used to deep clone the geometries while collecting them.
void	setMaxCoordinates(long maxCoordinates) Sets the maximum number of coordinates to be collected.

Methods inherited from class Object

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

Constructor Detail

GeometryCollector

public GeometryCollector()

Method Detail

getMaxCoordinates

public long getMaxCoordinates()

Returns the maximum number of coordinates this collector is allowed to keep in the resulting geometry

Returns:

setMaxCoordinates

public void setMaxCoordinates(long maxCoordinates)

Sets the maximum number of coordinates to be collected. By default is -1, no limit

Parameters:

maxCoordinates -

getFactory

public GeometryFactory getFactory()

Returns the geometry factory used to deep clone the geometries while collecting them (if null no cloning will happen)

Returns:

setFactory

public void setFactory(GeometryFactory factory)

Sets the geometry factory used to deep clone the geometries while collecting them. May be set to null to avoid deep cloning. By default a geometry factory based on PackedCoordinateSequenceFactory is used to minimize the memory usage

Parameters:

factory -

collect

public GeometryCollection collect()

Returns a geometry collection containing all of the geometries collected in the process

Returns:

collectInternal

public GeometryCollection collectInternal()

add

public void add(Geometry g)

Adds a geometry to the collector

Parameters:

g -

result -