org.apache.lenya.ac.file
Class FileItemManager.DirectoryChangeNotifier

java.lang.Object
  org.apache.lenya.ac.file.FileItemManager.DirectoryChangeNotifier

Enclosing class:

FileItemManager

public static class FileItemManager.DirectoryChangeNotifier
extends java.lang.Object

Helper class to observe a directory for changes.

Constructor Summary

FileItemManager.DirectoryChangeNotifier(java.io.File directory, java.io.FileFilter filter)
Ctor.

Method Summary

java.io.File[]	getAddedFiles() Returns the added files.
java.io.File[]	getChangedFiles() Returns the changed files.
java.io.File[]	getRemovedFiles() Returns the removed files.
boolean	hasChanged() Checks if the directory has changed (a new file was added, a file was removed, a file has changed).

Methods inherited from class java.lang.Object

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

Constructor Detail

FileItemManager.DirectoryChangeNotifier

public FileItemManager.DirectoryChangeNotifier(java.io.File directory,
                                               java.io.FileFilter filter)

Ctor.

Parameters:

directory - The directory to observe.

filter - A filter to specify the file type to observe.

Method Detail

hasChanged

public boolean hasChanged()
                   throws java.io.IOException

Checks if the directory has changed (a new file was added, a file was removed, a file has changed).

Returns:

A boolean value.

Throws:

java.io.IOException - when something went wrong.

getAddedFiles

public java.io.File[] getAddedFiles()

Returns the added files.

Returns:

An array of files.

getRemovedFiles

public java.io.File[] getRemovedFiles()

Returns the removed files.

Returns:

An array of files.

getChangedFiles

public java.io.File[] getChangedFiles()

Returns the changed files.

Returns:

An array of files.