nl.javel.gisbeans.io.esri
Class DbfReader

java.lang.Object
  nl.javel.gisbeans.io.esri.DbfReader

All Implemented Interfaces:

Serializable

public class DbfReader
extends Object
implements Serializable

This class reads a dbf file (dBaseIII) used in Esri ShapeFiles

Since:

JDK 1

Version:

1

Author:

Paul Jacobs
Peter Jacobs

See Also:

Serialized Form

Constructor Summary

DbfReader(URL dbfFile)
constructs a DbfReader

Method Summary

String[]	getColumnNames() returns the columnNames
String[]	getRow(int rowNumber) returns the row
int[]	getRowNumbers(String attribute, String columnName) returns the array of rowNumbers belonging to a attribute/column pair
String[][]	getRows() returns a table of all attributes stored for the particular dbf-file
boolean	isCache() may we cache parsed data for a session.
void	setCache(boolean cache)

Methods inherited from class java.lang.Object

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

Constructor Detail

DbfReader

public DbfReader(URL dbfFile)
          throws IOException

constructs a DbfReader

Parameters:

dbfFile - the URL of the dbfFile

Throws:

IOException - whenever url does not occur to exist.

Method Detail

getColumnNames

public String[] getColumnNames()

returns the columnNames

Returns:

String[] the columnNames

getRow

public String[] getRow(int rowNumber)
                throws IOException,
                       IndexOutOfBoundsException

returns the row

Parameters:

rowNumber - the rowNumber

Returns:

String[] the attributes of the row

Throws:

IOException

IndexOutOfBoundsException - whenever the rowNumber > numRecords

getRows

public String[][] getRows()
                   throws IOException

returns a table of all attributes stored for the particular dbf-file

Returns:

String[][] a table of attributes

Throws:

IOException - an IOException

getRowNumbers

public int[] getRowNumbers(String attribute,
                           String columnName)
                    throws IOException

returns the array of rowNumbers belonging to a attribute/column pair

Parameters:

attribute - the attribute value

columnName - the name of the column

Returns:

int[] the array of shape numbers.

Throws:

IOException

isCache

public boolean isCache()

may we cache parsed data for a session. If false, every getRows results in IO activity. If true data is stored inMemory

Returns:

Returns the cache.

setCache

public void setCache(boolean cache)

Parameters:

cache - The cache to set.