org.gvsig.raster.cache.buffer

Interface BufferDataSource

public interface BufferDataSource

Data Server for read only buffers. 02/11/2008

Method Summary

Modifier and Type	Method and Description
void	changeFileName(String oldName, String newName) Change the name of a file
BufferDataSource	clone() Clone the datasource to be assigned to each band
void	close() Close the data source
void	delete(String file) Elimina la fuente de datos de disco
int	getBandCount() Get de number of bands
int	getDataType() Get the data type
int	getHeight() Get the height of the data source
String[]	getPath() Get the path to image file
int	getSelectedBand() Get the band selected to read for loadSelectedBand method
int	getWidth() Get the width of the data source
void	loadPage(Buffer rb, PxTile stripe) Load a page with data.
void	loadPage(Buffer rb, PxTile stripe, int iBand) Load a one banded page with data.
void	loadPage(Buffer buf, String file) Load a page of cache from the hard disk
void	loadSelectedBand(Buffer rb, PxTile stripe) Load a page with data.
void	saveBand(Band buf, String file) Save a band of cache to the hard disk
void	savePage(Buffer buf, String file) Save a page of cache to the hard disk
void	setPath(String path) Set the path to image file
void	setPath(String[] path) Set the path to image file
void	setSelectedBand(int path) Set the band selected to read for loadSelectedBand method

Method Detail

getPath

String[] getPath()

Get the path to image file

Returns:

setPath

void setPath(String[] path)

Set the path to image file

Parameters:

path - path to the file

setPath

void setPath(String path)

Set the path to image file

Parameters:

path - path to the file

getSelectedBand

int getSelectedBand()

Get the band selected to read for loadSelectedBand method

Returns:

setSelectedBand

void setSelectedBand(int path)

Set the band selected to read for loadSelectedBand method

Parameters:

band - band to the file

getWidth

int getWidth()

Get the width of the data source

Returns:

getHeight

int getHeight()

Get the height of the data source

Returns:

getBandCount

int getBandCount()

Get de number of bands

Returns:

getDataType

int getDataType()

Get the data type

Returns:

loadPage

void loadPage(Buffer rb,
              PxTile stripe)
       throws IOException,
              ProcessInterruptedException,
              OperationNotSupportedException

Load a page with data.

Parameters:

rb - Page

stripe - Object with the information about data read. This contains positional information.

Throws:

IOException

InterruptedException

OperationNotSupportedException

ProcessInterruptedException

loadPage

void loadPage(Buffer rb,
              PxTile stripe,
              int iBand)
       throws IOException,
              ProcessInterruptedException,
              OperationNotSupportedException

Load a one banded page with data.

Parameters:

rb - Page

stripe - Object with the information about data read. This contains positional information.

iBand - Band to load

Throws:

IOException

InterruptedException

OperationNotSupportedException

ProcessInterruptedException

loadSelectedBand

void loadSelectedBand(Buffer rb,
                      PxTile stripe)
               throws IOException,
                      OperationNotSupportedException,
                      ProcessInterruptedException

Load a page with data. Only is loaded the band selected in the variable "selectedBand"

Parameters:

rb - Page

stripe - Object with the information about data read. This contains positional information.

Throws:

IOException

OperationNotSupportedException

ProcessInterruptedException

loadPage

void loadPage(Buffer buf,
              String file)
       throws InterruptedException

Load a page of cache from the hard disk

Parameters:

RasterMemoryBuffer - Data buffer to load in memory

String - File name

Throws:

InterruptedException

savePage

void savePage(Buffer buf,
              String file)
       throws IOException

Save a page of cache to the hard disk

Parameters:

RasterMemoryBuffer - Data buffer to load in memory

String - File name

Throws:

IOException

saveBand

void saveBand(Band buf,
              String file)
       throws IOException

Save a band of cache to the hard disk

Parameters:

RasterMemoryBuffer - Data buffer to load in memory

String - File name

Throws:

IOException

delete

void delete(String file)
     throws IOException

Elimina la fuente de datos de disco

Throws:

IOException

close

void close()
    throws IOException

Close the data source

Throws:

IOException

changeFileName

void changeFileName(String oldName,
                    String newName)

Change the name of a file

Parameters:

oldName -

newName -

clone

BufferDataSource clone()

Clone the datasource to be assigned to each band

Returns: