com.tplan.robot.util

Class DirectoryWatchService

java.lang.Object

com.tplan.robot.util.DirectoryWatchService

All Implemented Interfaces:

Runnable

public class DirectoryWatchService
extends Object
implements Runnable

A directory watch service which notifies listeners on any change.

Since:

7.1

T-Plan Robot Enterprise, (C) 2009-2025 T-Plan Limited. All rights reserved.

Method Summary

Modifier and Type	Method and Description
void	run() Process all events for keys queued to the watcher
static void	setEnabled(File f, PropertyChangeListener l, boolean b) Enable or disable watching of a directory for a single listener.
static void	start(File dir, PropertyChangeListener l) Start watching a directory.
static void	stop(File dir) Stop watching a directory.

Methods inherited from class java.lang.Object

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

Method Detail

start

public static void start(File dir,
                         PropertyChangeListener l)
                  throws IOException

Start watching a directory. If the directory is already being watched the method just registers the listener.

Parameters:

dir - a directory.

l - a listener.

Throws:

IOException - if the directory can't be watched for an I/O error.

stop

public static void stop(File dir)

Stop watching a directory. If the directory is not being watched the method does nothing.

This is a global action which affects all listeners registered to the service for the given directory. To stop watching for a single listener use the setEnabled(java.io.File, java.beans.PropertyChangeListener, boolean) method.

Parameters:

dir - a directory to stop watching.

setEnabled

public static void setEnabled(File f,
                              PropertyChangeListener l,
                              boolean b)

Enable or disable watching of a directory for a single listener.

Parameters:

f - a directory.

l - a listener.

b - true/false to enable/disable watching for the specified listener.

run

public void run()

Process all events for keys queued to the watcher

Specified by:

run in interface Runnable