uk.ac.starlink.datanode.nodes
Class ZipFileDataNode

java.lang.Object
  extended by uk.ac.starlink.datanode.nodes.DefaultDataNode
      extended by uk.ac.starlink.datanode.nodes.ZipArchiveDataNode
          extended by uk.ac.starlink.datanode.nodes.ZipFileDataNode
All Implemented Interfaces:
DataNode

public class ZipFileDataNode
extends ZipArchiveDataNode

A DataNode representing a zip archive stored in a file.

Author:
Mark Taylor (Starlink)

Constructor Summary
ZipFileDataNode(File file)
          Initialises a ZipFileDataNode from a File object.
 
Method Summary
 void configureDetail(DetailViewer dv)
          No custom configuration is performed.
protected  Iterator getChildIteratorAtLevel(String level, DataNode parent)
          Returns an iterator over the DataNodes at a given level in the hierarchy of this archive.
protected  List getEntries()
          Returns a list of all the ZipEntry objects in this zip archive.
 Object getParentObject()
          Returns an object which is in some sense the parent of the one this node is based on.
 
Methods inherited from class uk.ac.starlink.datanode.nodes.ZipArchiveDataNode
allowsChildren, getChildIterator, getEntriesAtLevel, getName, getNodeTLA, getNodeType, getPathSeparator, isMagic
 
Methods inherited from class uk.ac.starlink.datanode.nodes.DefaultDataNode
beep, getChildMaker, getCreator, getDataObject, getDescription, getIcon, getLabel, 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

ZipFileDataNode

public ZipFileDataNode(File file)
                throws NoSuchDataException
Initialises a ZipFileDataNode from a File object.

Parameters:
file - a File object representing the file from which the node is to be created
Throws:
NoSuchDataException
Method Detail

getParentObject

public Object getParentObject()
Description copied from interface: DataNode
Returns an object which is in some sense the parent of the one this node is based on. The parent is not a DataNode, it is something which may get fed to a DataNodeFactory to create DataNode. If no such object exists, which may well be the case, null should be returned.

Specified by:
getParentObject in interface DataNode
Overrides:
getParentObject in class DefaultDataNode
Returns:
an object which is the parent of this one, or null

getEntries

protected List getEntries()
                   throws IOException
Description copied from class: ZipArchiveDataNode
Returns a list of all the ZipEntry objects in this zip archive.

Specified by:
getEntries in class ZipArchiveDataNode
Returns:
a List of all the ZipEntry objects which make up this zip archive.
Throws:
IOException

getChildIteratorAtLevel

protected Iterator getChildIteratorAtLevel(String level,
                                           DataNode parent)
                                    throws IOException
Description copied from class: ZipArchiveDataNode
Returns an iterator over the DataNodes at a given level in the hierarchy of this archive. The iterator creates DataNodes for each ZipEntry in this archive whose name begins with the supplied string level.

Specified by:
getChildIteratorAtLevel in class ZipArchiveDataNode
Parameters:
level - the required starting substring of the name of all ZipEntries to be represented in the result
parent - the DataNode whose children the resulting nodes will be
Returns:
an Iterator over DataNode objects corresponding to the ZipEntry objects specified by level
Throws:
IOException

configureDetail

public void configureDetail(DetailViewer dv)
Description copied from class: DefaultDataNode
No custom configuration is performed.

Specified by:
configureDetail in interface DataNode
Overrides:
configureDetail in class DefaultDataNode
Parameters:
dv - the detail viewer which this node is given an opportunity to configure


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