uk.ac.starlink.datanode.nodes

Class FITSFileDataNode

java.lang.Object

uk.ac.starlink.datanode.nodes.DefaultDataNode

uk.ac.starlink.datanode.nodes.FITSDataNode

uk.ac.starlink.datanode.nodes.FITSFileDataNode

All Implemented Interfaces:

DataNode

public class FITSFileDataNode
extends FITSDataNode

An implementation of the DataNode interface for representing FITS objects stored on disk.

Version:

$Id$

Author:

Mark Taylor (Starlink)

Nested Class Summary

Nested classes/interfaces inherited from class uk.ac.starlink.datanode.nodes.FITSDataNode

FITSDataNode.ArrayDataMaker

Constructor Summary

Constructors

Constructor and Description
FITSFileDataNode(File file)
FITSFileDataNode(FileDataSource fdatsrc)

Method Summary

Modifier and Type	Method and Description
protected FITSDataNode.ArrayDataMaker	getArrayData(long start, long size) Returns an ArrayDataMaker encapsulating the same input stream as the on one which this FITSDataNode is based, but starting at a given offset start into the stream and size bytes long.
String	getName() Gets the name of this object.
static FileDataSource	makeFileDataSource(File file)

Methods inherited from class uk.ac.starlink.datanode.nodes.FITSDataNode

allowsChildren, getChildIterator, getDataInput, getDescription, getNodeTLA, getNodeType, getPathSeparator, isMagic

Methods inherited from class uk.ac.starlink.datanode.nodes.DefaultDataNode

beep, configureDetail, getChildMaker, getCreator, getDataObject, getIcon, getLabel, getParentObject, getPathElement, hasDataObject, makeChild, makeErrorChild, registerDataObject, setChildMaker, setCreator, setDescription, setIconID, setLabel, setName, setParentObject, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

FITSFileDataNode

public FITSFileDataNode(FileDataSource fdatsrc)
                 throws NoSuchDataException

Throws:

NoSuchDataException

FITSFileDataNode

public FITSFileDataNode(File file)
                 throws NoSuchDataException

Throws:

NoSuchDataException

Method Detail

getName

public String getName()

Description copied from interface: DataNode

Gets the name of this object. This is an intrinsic property of the object.

Specified by:

getName in interface DataNode

Overrides:

getName in class FITSDataNode

Returns:

the name of the object

getArrayData

protected FITSDataNode.ArrayDataMaker getArrayData(long start,
                                                   long size)

Description copied from class: FITSDataNode

Returns an ArrayDataMaker encapsulating the same input stream as the on one which this FITSDataNode is based, but starting at a given offset start into the stream and size bytes long.

Specified by:

getArrayData in class FITSDataNode

Parameters:

start - the offset into this FITSDataNode's stream at which the returned source's streams should start

size - the number of bytes contained by the returned source's stream

makeFileDataSource

public static FileDataSource makeFileDataSource(File file)
                                         throws NoSuchDataException

Throws:

NoSuchDataException