org.deegree_impl.io.shpapi
Class MainFile

java.lang.Object
  org.deegree_impl.io.shpapi.MainFile

public class MainFile

extends java.lang.Object

Class representing an ESRI Shape File.

Uses class ByteUtils modified from the original package com.bbn.openmap.layer.shape
Copyright (C) 1998 BBN Corporation 10 Moulton St. Cambridge, MA 02138

Last changes:
14.12.1999 ap: import clauses added
14.12.1999 ap: private variable declarations
14.12.1999 ap: all public static references removed
14.12.1999 ap: constructor implemented
14.12.1999 ap: method: openFiles (String url) implemented
14.12.1999 ap: method: getFileMBR() implemented
14.12.1999 ap: method: getRecordNum() implemented
14.12.1999 ap: method: getRecordMBR(int RecNo) implemented
14.12.1999 ap: method: getByRecNo(int RecNo) implemented
14.12.1999 ap: method: getShapeTypeByRecNo(int RecNo) implemented
21.12.1999 ap: method: openfiles(String url) removed
21.12.1999 ap: all static final declarations replaced
07.01.2000 ap: return types of the methods changed from WKBxxxx and Rectangle
to SHPxxxx
07.01.2000 ap: method getRecordMBR modified - SHAPE_TYPE_MULTIPOINT added
13.01.2000 ap: method getByRecNo re-implemented
21.03.2000 ap: method getByRecNo completed; multipoint is now supported
16.08.2000 ap: method write(..) added
16.08.2000 ap: method writeHeader(..) added

Version:

16.08.2000

Author:

Andreas Poth

Field Summary

private java.lang.String	_shp
private java.io.RandomAccessFile	rafShp
protected byte[]	recHdr
private FileHeader	sfh
private IndexFile	shx

Constructor Summary

MainFile(java.lang.String url)
Construct a MainFile from a file name.

MainFile(java.lang.String url, java.lang.String rwflag)
Construct a MainFile from a file name.

Method Summary

void	close()
SHPGeometry	getByRecNo(int RecNo) method: getByRecNo (int RecNo) retruns a ShapeRecord-Geometry by RecorcNumber
SHPEnvelope	getFileMBR() method: getFileMBR() returns the minimum bounding rectangle of geometries within the shape-file
SHPEnvelope	getRecordMBR(int RecNo) method: getRecordMBR(int RecNo) returns the minimum bound rectangle of RecNo's Geometrie of the shape-file
int	getRecordNum() method: getRecordNum() returns the number of record with in a shape-file
int	getShapeTypeByRecNo(int RecNo) method: getShapeType(int RecNo) returns the minimum bound rectangle of RecNo's Geometrie of the shape-file
void	write(byte[] bytearray, IndexRecord record, SHPEnvelope mbr) method: public void write(byte[] bytearray) appends a bytearray to the shape file
void	writeHeader(int filelength, byte shptype, SHPEnvelope mbr) method: public void writeHeader(int filelength, byte shptype, SHPEnvelope mbr) writes a header to the shape and index file

Methods inherited from class java.lang.Object

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

Field Detail

recHdr

protected byte[] recHdr

sfh

private FileHeader sfh

shx

private IndexFile shx

_shp

private final java.lang.String _shp

See Also:

Constant Field Values

rafShp

private java.io.RandomAccessFile rafShp

Constructor Detail

MainFile

public MainFile(java.lang.String url)
         throws java.io.IOException

Construct a MainFile from a file name.

MainFile

public MainFile(java.lang.String url,
                java.lang.String rwflag)
         throws java.io.IOException

Construct a MainFile from a file name.

Method Detail

close

public void close()

getFileMBR

public SHPEnvelope getFileMBR()

method: getFileMBR()
returns the minimum bounding rectangle of geometries
within the shape-file

getRecordNum

public int getRecordNum()

method: getRecordNum()
returns the number of record with in a shape-file

getRecordMBR

public SHPEnvelope getRecordMBR(int RecNo)
                         throws java.io.IOException

method: getRecordMBR(int RecNo)
returns the minimum bound rectangle of RecNo's Geometrie of the shape-file

Throws:

java.io.IOException

getByRecNo

public SHPGeometry getByRecNo(int RecNo)
                       throws java.io.IOException

method: getByRecNo (int RecNo)
retruns a ShapeRecord-Geometry by RecorcNumber

Throws:

java.io.IOException

getShapeTypeByRecNo

public int getShapeTypeByRecNo(int RecNo)
                        throws java.io.IOException

method: getShapeType(int RecNo)
returns the minimum bound rectangle of RecNo's Geometrie of the shape-file

Throws:

java.io.IOException

write

public void write(byte[] bytearray,
                  IndexRecord record,
                  SHPEnvelope mbr)
           throws java.io.IOException

method: public void write(byte[] bytearray)
appends a bytearray to the shape file

Throws:

java.io.IOException

writeHeader

public void writeHeader(int filelength,
                        byte shptype,
                        SHPEnvelope mbr)
                 throws java.io.IOException

method: public void writeHeader(int filelength, byte shptype, SHPEnvelope mbr)
writes a header to the shape and index file

Throws:

java.io.IOException