ActivityWatchdog (FFMQ Core 4.0.14 API)

java.lang.Object
- java.lang.Thread
- - net.timewalker.ffmq4.utils.watchdog.ActivityWatchdog

All Implemented Interfaces:

Runnable
```
public class ActivityWatchdog
extends Thread
```
Daemon thread watching a list of active objects.

The watchdog will wake up every WAKE_UP_INTERVAL milliseconds and check the active objects last activity timestamps. If an active object has been inactive for too long, its associated timeout callback is called.

The activity watchdog is a singleton.

See Also:

ActiveObject

Nested Class Summary
- Nested classes/interfaces inherited from class java.lang.Thread
  Thread.State, Thread.UncaughtExceptionHandler

Field Summary
- Fields inherited from class java.lang.Thread
  MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static ActivityWatchdog`	`getInstance()`	Get the singleton instance
`void`	`pleaseStop()`	Ask the watchdog thread to stop
`void`	`register(ActiveObject object)`	Register an active object to be monitored
`void`	`run()`
`void`	`unregister(ActiveObject object)`	Unregister a monitored active object

Methods inherited from class java.lang.Thread
activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - getInstance
```
public static ActivityWatchdog getInstance()
```
    Get the singleton instance
    
    Returns:
    
    the singleton instance
  - run
```
public void run()
```
    Specified by:
    
    run in interface Runnable
    
    Overrides:
    
    run in class Thread
  - pleaseStop
```
public void pleaseStop()
```
    Ask the watchdog thread to stop
  - register
```
public void register(ActiveObject object)
```
    Register an active object to be monitored
    
    Parameters:
    
    object - the object to register
  - unregister
```
public void unregister(ActiveObject object)
```
    Unregister a monitored active object
    
    Parameters:
    
    object - the object to unregister