net.timewalker.ffmq4.utils.watchdog

Interface ActiveObject

All Known Implementing Classes:

AbstractTcpPacketHandler, LocalQueue, TcpPacketReceiver, TcpPacketSender

public interface ActiveObject

An active object is supposed to have regular activity.

If the object last activity gets too old (older than the configured timeout delay), the activity watchdog will kick in and call the onActivityTimeout() method of the object.

Method Summary

Modifier and Type	Method and Description
long	getLastActivity() Get a timestamp of this object's last activity
long	getTimeoutDelay() Get the maximum allowed time between activities
boolean	onActivityTimeout() Called if the object has been inactive for more

Method Detail

getLastActivity

long getLastActivity()

Get a timestamp of this object's last activity

Returns:

a java timestamp

getTimeoutDelay

long getTimeoutDelay()

Get the maximum allowed time between activities

Returns:

a delay in milliseconds

onActivityTimeout

boolean onActivityTimeout()
                   throws Exception

Called if the object has been inactive for more

Returns:

true if the object should be unregistered immediately upon return

Throws:

Exception