org.gvsig.raster.impl.buffer.cache

Class PageBandBuffer

java.lang.Object

org.gvsig.fmap.dal.coverage.dataset.AbstractBuffer

org.gvsig.raster.impl.buffer.RasterBuffer

org.gvsig.raster.impl.buffer.RasterMemoryBuffer

org.gvsig.raster.impl.buffer.cache.PageBandBuffer

All Implemented Interfaces:

Buffer, Histogramable, DataSet, Disposable, Visitable

public class PageBandBuffer
extends RasterMemoryBuffer

Esta clase representa una página de cache. Una página no es más que un buffer de datos con todas sus funcionalidades con un uso especifico, el de ser una página.

Nested Class Summary

Nested classes/interfaces inherited from class org.gvsig.raster.impl.buffer.RasterMemoryBuffer

RasterMemoryBuffer.ByteBand, RasterMemoryBuffer.DoubleBand, RasterMemoryBuffer.FloatBand, RasterMemoryBuffer.IntBand, RasterMemoryBuffer.ShortBand

Field Summary

Fields inherited from class org.gvsig.raster.impl.buffer.RasterBuffer

cacheOn, cancel, canceled, dataType, forceToLoadInCache, forceToLoadInReadOnlyCache, height, INTERPOLATION_PROCESS, nBands, noDataValue, notValidValue, progressInterpolation, width

Fields inherited from interface org.gvsig.fmap.dal.coverage.dataset.Buffer

INCREMENTABLE_HISTOGRAM, INCREMENTABLE_INTERPOLATION, INTERPOLATION_BicubicSpline, INTERPOLATION_Bilinear, INTERPOLATION_BSpline, INTERPOLATION_InverseDistance, INTERPOLATION_NearestNeighbour, INTERPOLATION_Undefined, TYPE_BYTE, TYPE_DOUBLE, TYPE_FLOAT, TYPE_IMAGE, TYPE_INT, TYPE_SHORT, TYPE_UNDEFINED, TYPE_USHORT

Constructor Summary

Constructors

Constructor and Description
PageBandBuffer(int dataType, int width, int height, int bandNr, boolean malloc, int numBand) Constructor.

Method Summary

Modifier and Type	Method and Description
void	loadPage(int nPag) Carga una página especificada en el parámetro nPag con los datos necesarios.
void	savePage(int nPag) Salva una página especificada en el parámetro nPag a disco.
void	setHddPages(HddPage[] hddList) Asigna la lista de paginas de disco

Methods inherited from class org.gvsig.raster.impl.buffer.RasterMemoryBuffer

assign, assign, assign, assign, assign, assignBand, assignBandToNotValid, cloneBuffer, copyBand, createBand, createByteBand, createDoubleBand, createFloatBand, createIntBand, createShortBand, dispose, finalize, getBand, getBandBuffer, getBandCount, getDataSize, getDataType, getElemByte, getElemByte, getElemDouble, getElemDouble, getElemFloat, getElemFloat, getElemInt, getElemInt, getElemShort, getElemShort, getHeight, getLineByte, getLineDouble, getLineFloat, getLineFromBandByte, getLineFromBandDouble, getLineFromBandFloat, getLineFromBandInt, getLineFromBandShort, getLineInt, getLineShort, getWidth, interchangeBands, isBandSwitchable, isReadOnlyBuffer, malloc, mallocOneBand, replicateBand, setDataType, setElem, setElem, setElem, setElem, setElem, setElemByte, setElemDouble, setElemFloat, setElemInt, setElemShort, setLineByte, setLineDouble, setLineFloat, setLineInBandByte, setLineInBandDouble, setLineInBandFloat, setLineInBandInt, setLineInBandShort, setLineInt, setLineShort, sizeof, switchBands, typesToString

Methods inherited from class org.gvsig.raster.impl.buffer.RasterBuffer

accept, addDrawableBands, getAdjustedWindow, getAllBandsLimits, getBlockHeight, getDataExtent, getHistogramComputer, getIncrementableTask, getLimits, getNoDataValue, getNotValidValue, getPercent, getStore, isCached, isFromStore, isInside, resetPercent, setDataExtent, setNoDataValue, setNotValidValue, setProcess, setStore

Methods inherited from class org.gvsig.fmap.dal.coverage.dataset.AbstractBuffer

project

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.gvsig.fmap.dal.coverage.dataset.Buffer

project

Methods inherited from interface org.gvsig.tools.visitor.Visitable

accept

Constructor Detail

PageBandBuffer

public PageBandBuffer(int dataType,
                      int width,
                      int height,
                      int bandNr,
                      boolean malloc,
                      int numBand)

Constructor.

Parameters:

dataType - Tipo de dato

width - Ancho de página

height - Alto de página

bandNr - Número de bandas

malloc - true para reservar de memoria en el buffer

Method Detail

setHddPages

public void setHddPages(HddPage[] hddList)

Asigna la lista de paginas de disco

Parameters:

hddList - Lista de páginas de disco

loadPage

public void loadPage(int nPag)
              throws ProcessInterruptedException

Carga una página especificada en el parámetro nPag con los datos necesarios. Para esto utiliza el dataSource.

Parameters:

nPag - Número de página a cargar

Throws:

ProcessInterruptedException

savePage

public void savePage(int nPag)
              throws java.io.IOException

Salva una página especificada en el parámetro nPag a disco. Para esto utiliza el dataSource

Parameters:

nPag - Número de página a salvar

Throws:

java.io.IOException