org.h2gis.functions.io.shp.internal

Class MultiLineHandler

java.lang.Object

org.h2gis.functions.io.shp.internal.MultiLineHandler

All Implemented Interfaces:

ShapeHandler

public class MultiLineHandler
extends Object
implements ShapeHandler

The default JTS handler for shapefile. Currently uses the default JTS GeometryFactory, since it doesn't seem to matter.

Constructor Summary

Constructors

Constructor and Description
MultiLineHandler() Create a MultiLineHandler for ShapeType.ARC
MultiLineHandler(ShapeType type) Create a MultiLineHandler for one of: ShapeType.ARC,ShapeType.ARCM,ShapeType.ARCZ

Method Summary

Modifier and Type	Method and Description
int	getLength(Object geometry) Get the length of the given geometry Object in bytes not 16-bit words.
ShapeType	getShapeType() Get the type of shape stored (ShapeType.ARC,ShapeType.ARCM,ShapeType.ARCZ)
org.locationtech.jts.geom.Geometry	read(ReadBufferManager buffer, ShapeType type) Read a geometry from the ByteBuffer.
void	write(WriteBufferManager buffer, Object geometry) Write the geometry into the ByteBuffer.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiLineHandler

public MultiLineHandler()

Create a MultiLineHandler for ShapeType.ARC

MultiLineHandler

public MultiLineHandler(ShapeType type)
                 throws ShapefileException

Create a MultiLineHandler for one of:
ShapeType.ARC,ShapeType.ARCM,ShapeType.ARCZ

Parameters:

type - The ShapeType to use.

Throws:

ShapefileException - If the ShapeType is not correct (see constructor).

Method Detail

getShapeType

public ShapeType getShapeType()

Get the type of shape stored (ShapeType.ARC,ShapeType.ARCM,ShapeType.ARCZ)

Specified by:

getShapeType in interface ShapeHandler

Returns:

The ShapeType.

getLength

public int getLength(Object geometry)

Description copied from interface: ShapeHandler

Get the length of the given geometry Object in bytes not 16-bit words. This is easier to keep track of, since the ByteBuffer deals with bytes. Do not include the 8 bytes of record.

Specified by:

getLength in interface ShapeHandler

Parameters:

geometry - The geometry to analyze.

Returns:

The number of bytes the shape will take up.

read

public org.locationtech.jts.geom.Geometry read(ReadBufferManager buffer,
                                               ShapeType type)
                                        throws IOException

Description copied from interface: ShapeHandler

Read a geometry from the ByteBuffer. The buffer's position, byteOrder, and limit are set to that which is needed. The record has been read as well as the shape type integer. The handler need not worry about reading unused information as the ShapefileReader will correctly adjust the buffer position after this call.

Specified by:

read in interface ShapeHandler

Parameters:

buffer - The ByteBuffer to read from.

Returns:

A geometry object.

Throws:

IOException

write

public void write(WriteBufferManager buffer,
                  Object geometry)
           throws IOException

Description copied from interface: ShapeHandler

Write the geometry into the ByteBuffer. The position, byteOrder, and limit are all set. The handler is not responsible for writing the record or shape type integer.

Specified by:

write in interface ShapeHandler

Parameters:

buffer - The ByteBuffer to write to.

geometry - The geometry to write.

Throws:

IOException