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Class com.sun.java.swing.DirectoryModel 

java.lang.Object
   |
   +----com.sun.java.swing.DirectoryModel
public class DirectoryModel
extends Object
Models what goes on in a directory of typed files. Has a notion of its current directory, and provides a notion of file typing. Can be told to "go up". Fakes a meta level above the root file system(s) if it thinks this is a Windows box.

Variable Index

o changeSupport
o cleanupTypes
Types to check if none of the general ones match.
o curDir
Where this chooser is.
o currentFiles
Cache of the TypedFiles of the local directory
o currentFilesFresh
True if the currentFiles cache is trustworth, false if it should be refreshed
o haveCheckedWindows
True if we have executed our hack to see if this is a Windows file system
o hiddenRule
This type is never assigned to a file.
o isWindows
Undefined if haveCheckedWindows is false.
o knownTypes
All types that are known to this file chooser.
o listenerList
o overrideTypes
Special tests that must be failed before any general types are assigned.
o sharedWindowsRootDir
o shownType
The type that may be shown.

Constructor Index

o DirectoryModel()
Returns a DirectoryModel whose current directory is the user's home dir
o DirectoryModel(File)
Returns a DirectoryModel with current directory path

Method Index

o addKnownFileType(FileType)
o addPropertyChangeListener(PropertyChangeListener)
o applyTypeToFile(FileType, TypedFile)
Little convenience used by deduceAndSetTypeOfFile This is the only place TypedFile.setType is called
o canGoUp()
o deduceAndSetTypeOfFile(TypedFile)
Search the known types et al for the one that applies to f.
o enumerateKnownFileTypes()
o firePropertyChange(String, Object, Object)
o getCurrentDirectory()
o getHiddenRule()
o getKnownFileTypes()
o getSharedWindowsRootDir()
o getShownType()
o getTypedFile(String)
Given a path, return a TypedFile
o getTypedFile(String, String)
Given a path and a file name, return a TypedFile
o getTypedFiles()
Convenience, same as this.getTypedFilesForDirectory(this.getCurrentDirectory())
o getTypedFilesForDirectory(File)
Return a Vector of the files in the given directory, filtered according to knownTypes and hiddenRule.
o goUp()
o invalidateCache()
Invalidates the cached copy of the current directory
o isKnownFileType(FileType)
o isWindowsFileSystem()
o lt(TypedFile, TypedFile)
o makeAbsolute(File)
Convenience method, may return the same object, or a new one if the give was relative.
o quickSort(Vector, int, int)
This is a generic version of C.A.R Hoare's Quick Sort algorithm.
o removePropertyChangeListener(PropertyChangeListener)
o setCurrentDirectory(File)
Change the directory that is the location of this model.
o setHiddenRule(FileType)
o setKnownFileTypes(FileType[])
o setShownType(FileType)
o sort(Vector)

Variables

o currentFiles 
 protected transient Vector currentFiles
Cache of the TypedFiles of the local directory

o currentFilesFresh 
 protected transient boolean currentFilesFresh
True if the currentFiles cache is trustworth, false if it should be refreshed

o knownTypes 
 protected Vector knownTypes
All types that are known to this file chooser. In an ideal world, this would be system level information.

o shownType 
 protected FileType shownType
The type that may be shown. If null, all types shown.

o hiddenRule 
 protected FileType hiddenRule
This type is never assigned to a file. Rather, it is a general rule to apply after all typing and showing is done. E.g., this is how to hide all files that start with '.', regardless of type.

o overrideTypes 
 protected FileType overrideTypes[]
Special tests that must be failed before any general types are assigned. Devices and such.

o cleanupTypes 
 protected FileType cleanupTypes[]
Types to check if none of the general ones match. Last type in this array must always return true for testFile
o curDir 
 protected File curDir
Where this chooser is. Provides context for unqualified calls to getTypedFile and getTypedFiles, or calls with relative paths.

o haveCheckedWindows 
 protected boolean haveCheckedWindows
True if we have executed our hack to see if this is a Windows file system

o isWindows 
 protected boolean isWindows
Undefined if haveCheckedWindows is false. Otherwise, true if we think this is a windows file system.

o listenerList 
 protected EventListenerList listenerList
o changeSupport 
 protected PropertyChangeSupport changeSupport
o sharedWindowsRootDir 
 protected static DirectoryModel. WindowsRootDir sharedWindowsRootDir

Constructors

o DirectoryModel 
 public DirectoryModel()
Returns a DirectoryModel whose current directory is the user's home dir

o DirectoryModel 
 public DirectoryModel(File path)
Returns a DirectoryModel with current directory path

Methods

o makeAbsolute 
 protected File makeAbsolute(File f)
Convenience method, may return the same object, or a new one if the give was relative. If f instanceof TypedFile, a TypedFile is returned.

o getCurrentDirectory 
 public File getCurrentDirectory()
o setCurrentDirectory 
 public void setCurrentDirectory(File dir)
Change the directory that is the location of this model. Null means go to the user's home directory Emit a ChangeEvent if directory is actually changed.

o invalidateCache 
 protected void invalidateCache()
Invalidates the cached copy of the current directory

o getTypedFile 
 public TypedFile getTypedFile(String path,
                               String name)
Given a path and a file name, return a TypedFile

o getTypedFile 
 public TypedFile getTypedFile(String path)
Given a path, return a TypedFile

o getTypedFiles 
 public Vector getTypedFiles()
Convenience, same as this.getTypedFilesForDirectory(this.getCurrentDirectory())

o getTypedFilesForDirectory 
 public Vector getTypedFilesForDirectory(File dir)
Return a Vector of the files in the given directory, filtered according to knownTypes and hiddenRule. The Vector may be empty. The objects in the Vector are of instances of TypedFile

o applyTypeToFile 
 protected boolean applyTypeToFile(FileType t,
                                   TypedFile f)
Little convenience used by deduceAndSetTypeOfFile This is the only place TypedFile.setType is called

o deduceAndSetTypeOfFile 
 protected void deduceAndSetTypeOfFile(TypedFile f)
Search the known types et al for the one that applies to f. Must be called before f.getType() is ever called. Do not call this twice on the same instance of Typedfile, and do not call f.setType() after this.

o canGoUp 
 public boolean canGoUp()
o goUp 
 public void goUp()
o setHiddenRule 
 public void setHiddenRule(FileType rule)
o getHiddenRule 
 public FileType getHiddenRule()
o getShownType 
 public FileType getShownType()
o setShownType 
 public void setShownType(FileType t)
o addKnownFileType 
 public void addKnownFileType(FileType type)
o enumerateKnownFileTypes 
 public Enumeration enumerateKnownFileTypes()
o getKnownFileTypes 
 public Vector getKnownFileTypes()
o isKnownFileType 
 public boolean isKnownFileType(FileType t)
o setKnownFileTypes 
 public void setKnownFileTypes(FileType types[])
o firePropertyChange 
 protected void firePropertyChange(String propertyName,
                                   Object oldValue,
                                   Object newValue)
o addPropertyChangeListener 
 public synchronized void addPropertyChangeListener(PropertyChangeListener listener)
o removePropertyChangeListener 
 public synchronized void removePropertyChangeListener(PropertyChangeListener listener)
o isWindowsFileSystem 
 protected boolean isWindowsFileSystem()
o getSharedWindowsRootDir 
 public static DirectoryModel. WindowsRootDir getSharedWindowsRootDir()
o sort 
 protected void sort(Vector v)
o lt 
 protected boolean lt(TypedFile a,
                      TypedFile b)
o quickSort 
 protected void quickSort(Vector v,
                          int lo0,
                          int hi0)
This is a generic version of C.A.R Hoare's Quick Sort algorithm. This will handle arrays that are already sorted, and arrays with duplicate keys.
If you think of a one dimensional array as going from the lowest index on the left to the highest index on the right then the parameters to this function are lowest index or left and highest index or right. The first time you call this function it will be with the parameters 0, a.length - 1.

Parameters:
a - an integer array
lo0 - left boundary of array partition
hi0 - right boundary of array partition 
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