org.gvsig.raster.lib.buffer.impl

Class AbstractPaginatedBand

java.lang.Object

org.gvsig.tools.observer.impl.BaseWeakReferencingObservable

org.gvsig.raster.lib.buffer.impl.AbstractBand

org.gvsig.raster.lib.buffer.impl.AbstractPaginatedBand

All Implemented Interfaces:

java.lang.Cloneable, Band, Disposable, ComplexObservable, ComplexWeakReferencingObservable, Observable, WeakReferencingObservable

Direct Known Subclasses:

PaginatedBandByte, PaginatedBandDouble, PaginatedBandFloat, PaginatedBandInt, PaginatedBandShort

public abstract class AbstractPaginatedBand
extends AbstractBand
implements Band

Nested Class Summary

Nested classes/interfaces inherited from interface org.gvsig.raster.lib.buffer.api.Band

Band.BandByte, Band.BandDouble, Band.BandFloat, Band.BandInt, Band.BandShort

Field Summary

Fields

Modifier and Type	Field and Description
protected java.nio.Buffer	data
protected int	firstRowOfPage
protected static int	MAX_PREFERED_SIZE
protected BandPageManager	pageManager
protected int	rowsPerPage

Constructor Summary

Constructors

Constructor and Description
AbstractPaginatedBand(int rows, int columns, NoData noData, BandPageManager pageManager)

Method Summary

Modifier and Type	Method and Description
protected int	calculateBufferSizeToAllocate(int rows, int columns) Calculate buffer size than must be allocated.
void	copyFrom(Band source) Fills this band with a copy of the source data band.
protected void	doCopyFrom(Band source)
protected void	doCopyFrom(Band source, int row, int column)
void	doDispose() Internal implementation for the AbstractBand.dispose() method.
protected void	finalize()
BandInfo	getBandInfo() Gets information about the specified band.
protected abstract int	getDataSize()
boolean	isPaginated()
boolean	isReadOnly()
protected void	loadPage(int row)
protected void	saveCurrentPage()

Methods inherited from class org.gvsig.raster.lib.buffer.impl.AbstractBand

clone, copyFrom, dispose, doFill, doPutRow, doSet, fill, getAsDouble, getColumns, getNoData, getRows, nullValueToNoData, putRow, set

Methods inherited from class org.gvsig.tools.observer.impl.BaseWeakReferencingObservable

addObserver, addObserver, addObservers, beginComplexNotification, clearChanged, countObservers, deleteObserver, deleteObserver, deleteObservers, disableNotifications, enableNotifications, endComplexNotification, hasChanged, inComplex, isEnabledNotifications, notify, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.gvsig.raster.lib.buffer.api.Band

copyFrom, createRowBuffer, fetchRow, fill, get, getAsDouble, getColumns, getDataType, getNoData, getRows, putRow, set

Methods inherited from interface org.gvsig.tools.lang.Cloneable

clone, cloneQuietly, cloneQuietly

Methods inherited from interface org.gvsig.tools.observer.ComplexObservable

beginComplexNotification, disableNotifications, enableNotifications, endComplexNotification

Methods inherited from interface org.gvsig.tools.observer.Observable

addObserver, deleteObserver, deleteObservers

Methods inherited from interface org.gvsig.tools.dispose.Disposable

dispose

Field Detail

data

protected java.nio.Buffer data

firstRowOfPage

protected int firstRowOfPage

rowsPerPage

protected int rowsPerPage

pageManager

protected BandPageManager pageManager

MAX_PREFERED_SIZE

protected static final int MAX_PREFERED_SIZE

See Also:

Constant Field Values

Constructor Detail

AbstractPaginatedBand

public AbstractPaginatedBand(int rows,
                             int columns,
                             NoData noData,
                             BandPageManager pageManager)

Parameters:

rows -

columns -

noData -

pageManager -

Method Detail

copyFrom

public void copyFrom(Band source)
              throws CopyFromBandException

Description copied from interface: Band

Fills this band with a copy of the source data band.

Specified by:

copyFrom in interface Band

Overrides:

copyFrom in class AbstractBand

Throws:

CopyFromBandException

doCopyFrom

protected void doCopyFrom(Band source)
                   throws CopyFromBandException

Specified by:

doCopyFrom in class AbstractBand

Throws:

CopyFromBandException

doCopyFrom

protected void doCopyFrom(Band source,
                          int row,
                          int column)
                   throws CopyFromBandException

Specified by:

doCopyFrom in class AbstractBand

Throws:

CopyFromBandException

loadPage

protected void loadPage(int row)

saveCurrentPage

protected void saveCurrentPage()

getDataSize

protected abstract int getDataSize()

isReadOnly

public boolean isReadOnly()

Specified by:

isReadOnly in interface Band

Overrides:

isReadOnly in class AbstractBand

Returns:

If supports writing or not

isPaginated

public boolean isPaginated()

Specified by:

isPaginated in interface Band

Overrides:

isPaginated in class AbstractBand

Returns:

true if is paginated

getBandInfo

public BandInfo getBandInfo()

Description copied from interface: Band

Gets information about the specified band. If band does not have information, it will return null

Specified by:

getBandInfo in interface Band

Overrides:

getBandInfo in class AbstractBand

Returns:

Returns information about specified band.

calculateBufferSizeToAllocate

protected int calculateBufferSizeToAllocate(int rows,
                                            int columns)

Calculate buffer size than must be allocated.

Parameters:

rows -

columns -

Returns:

doDispose

public void doDispose()
               throws BaseException

Description copied from class: AbstractBand

Internal implementation for the AbstractBand.dispose() method.

Overrides:

doDispose in class AbstractBand

Throws:

BaseException

See Also:

AbstractBand.dispose()

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class AbstractBand

Throws:

java.lang.Throwable