nom.tam.fits

Class UndefinedData

java.lang.Object

nom.tam.fits.Data

nom.tam.fits.UndefinedData

All Implemented Interfaces:

FitsElement

public class UndefinedData
extends Data

This class provides a simple holder for data which is not handled by other classes.

Field Summary

Fields inherited from class nom.tam.fits.Data

dataSize, fileOffset, input

Constructor Summary

Constructors

Constructor and Description
UndefinedData(Header h)
UndefinedData(Object x) Create an UndefinedData object using the specified object.

Method Summary

Modifier and Type	Method and Description
protected void	fillHeader(Header head) Fill header with keywords that describe data.
Object	getData() Return the actual data.
protected int	getTrueSize() Get the size in bytes of the data
void	read(ArrayDataInput i) Read a data array into the current object and if needed position to the beginning of the next FITS block.
void	write(ArrayDataOutput o) Write the data -- including any buffering needed

Methods inherited from class nom.tam.fits.Data

getFileOffset, getKernel, getSize, rewrite, rewriteable, setFileOffset

Methods inherited from class java.lang.Object

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

Constructor Detail

UndefinedData

public UndefinedData(Header h)
              throws FitsException

Throws:

FitsException

UndefinedData

public UndefinedData(Object x)

Create an UndefinedData object using the specified object.

Method Detail

fillHeader

protected void fillHeader(Header head)

Fill header with keywords that describe data.

Parameters:

head - The FITS header

read

public void read(ArrayDataInput i)
          throws FitsException

Description copied from class: Data

Read a data array into the current object and if needed position to the beginning of the next FITS block.

Specified by:

read in interface FitsElement

Specified by:

read in class Data

Parameters:

i - The input data stream

Throws:

FitsException

write

public void write(ArrayDataOutput o)
           throws FitsException

Description copied from class: Data

Write the data -- including any buffering needed

Specified by:

write in interface FitsElement

Specified by:

write in class Data

Parameters:

o - The output stream on which to write the data.

Throws:

FitsException

getTrueSize

protected int getTrueSize()

Get the size in bytes of the data

getData

public Object getData()

Return the actual data. Note that this may return a null when the data is not readable. It might be better to throw a FitsException, but this is a very commonly called method and we prefered not to change how users must invoke it.

Specified by:

getData in class Data