Package nom.tam.fits.compression.provider

Class CompressorProvider.TileCompressorControl

java.lang.Object

nom.tam.fits.compression.provider.CompressorProvider.TileCompressorControl

All Implemented Interfaces:

ICompressorControl

Enclosing class:

CompressorProvider

protected static class CompressorProvider.TileCompressorControl
extends Object
implements ICompressorControl

private implementation of the tile compression provider, all is based on the option based constructor of the compressors.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TileCompressorControl(Class<?> compressorClass)

Method Summary

Modifier and Type	Method	Description
boolean	compress(Buffer in, ByteBuffer out, ICompressOption option)	Compress the buffer into the byte buffer using the specified options.
void	decompress(ByteBuffer in, Buffer out, ICompressOption option)	decompress the byte buffer back into the buffer using the specified options.
ICompressOption	option()
protected CompressorProvider.TileCompressorControl	setQuantType(Class<?> floatingPointType)	Sets the floating-point type to quantize to use for this tile compressor.

Methods inherited from class java.lang.Object

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

Constructor Details

TileCompressorControl

protected TileCompressorControl(Class<?> compressorClass)

Method Details

setQuantType

protected CompressorProvider.TileCompressorControl setQuantType(Class<?> floatingPointType)

Sets the floating-point type to quantize to use for this tile compressor.

Parameters:

floatingPointType - Floating-point primitive type to quantize. Must be either double.class or else float.class.

Returns:

itself

Since:

1.18

compress

public boolean compress(Buffer in,
 ByteBuffer out,
 ICompressOption option)

Description copied from interface: ICompressorControl

Compress the buffer into the byte buffer using the specified options.

Specified by:

compress in interface ICompressorControl

Parameters:

in - the buffer to compress.

out - the compressed data to fill (must already be allocated with enough space)

option - the options to use for the compression

Returns:

true if the compression succeded.

decompress

public void decompress(ByteBuffer in,
 Buffer out,
 ICompressOption option)

Description copied from interface: ICompressorControl

decompress the byte buffer back into the buffer using the specified options.

Specified by:

decompress in interface ICompressorControl

Parameters:

in - the bytes to decompress.

out - the buffer to fill with the decompressed data (must already be allocated with enough space)

option - the options to use for decompressing.

option

public ICompressOption option()

Specified by:

option in interface ICompressorControl

Returns:

a option instance that can be used to control the compression meganism.