org.h2gis.functions.io.shp.internal

Class ShapefileWriter

java.lang.Object

org.h2gis.functions.io.shp.internal.ShapefileWriter

public class ShapefileWriter
extends Object

ShapefileWriter allows for the storage of geometries in esris shp format. During writing, an index will also be created. To create a ShapefileWriter, do something like
GeometryCollection geoms; File shp = new File("myshape.shp"); File shx = new File("myshape.shx"); ShapefileWriter writer = new ShapefileWriter( shp.getChannel(),shx.getChannel() ); writer.write(geoms,ShapeType.ARC); This example assumes that each shape in the collection is a LineString.

Author:

jamesm, aaime, Ian Schneider

Constructor Summary

Constructors

Constructor and Description
ShapefileWriter(FileChannel shpChannel, FileChannel shxChannel) Creates a new instance of ShapeFileWriter

Method Summary

Modifier and Type	Method and Description
void	close() Close the underlying Channels.
FileChannel	getShpChannel()
void	writeGeometry(org.locationtech.jts.geom.Geometry g) Write a single Geometry to this shapefile.
void	writeHeaders(ShapeType type) Write the headers for this shapefile.Use this function before inserting the first geometry, then when all geometries are inserted.

Methods inherited from class java.lang.Object

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

Constructor Detail

ShapefileWriter

public ShapefileWriter(FileChannel shpChannel,
                       FileChannel shxChannel)
                throws IOException

Creates a new instance of ShapeFileWriter

Parameters:

shpChannel -

shxChannel -

Throws:

IOException

Method Detail

getShpChannel

public FileChannel getShpChannel()

Returns:

The Shape File Channel

writeHeaders

public void writeHeaders(ShapeType type)
                  throws IOException

Write the headers for this shapefile.Use this function before inserting the first geometry, then when all geometries are inserted.

Parameters:

type - Shape type

Throws:

IOException

writeGeometry

public void writeGeometry(org.locationtech.jts.geom.Geometry g)
                   throws IOException

Write a single Geometry to this shapefile. The Geometry must be compatable with the ShapeType assigned during the writing of the headers.

Parameters:

g -

Throws:

IOException

close

public void close()
           throws IOException

Close the underlying Channels.

Throws:

IOException