jet.server.monitor.api
Interface Monitor

All Known Subinterfaces:

AdhocMonitor, DatabaseMonitor, TaskMonitor, UserMonitor

public interface Monitor

This Monitor is the parent of all other specific monitors. It defines the common parts of all monitors. All the monitoring objects are monitored at intervals specified by the granularity period.

Method Summary

int	getDuration() Gets currently monitoring duration time (in milliseconds).
int	getInterval() Gets currently refreshing interval time (in milliseconds).
boolean	isStarted() Judges whether or not the current monitor has been started.
void	restart() Restarts the monitor.
void	setDuration(int duration) Sets monitoring duration (in milliseconds) till up to now.
void	setInterval(int interval) Sets refreshing interval time (in milliseconds).
void	start() Starts up the monitor.
void	stop() Stops and exits the monitor.
void	update() Updates monitoring temporary storage contents according to the specified duration time.

Method Detail

start

void start()

Starts up the monitor.

restart

void restart()

Restarts the monitor.

stop

void stop()

Stops and exits the monitor.

setInterval

void setInterval(int interval)

Sets refreshing interval time (in milliseconds).

Parameters:

interval - Refreshing interval time.

getInterval

int getInterval()

Gets currently refreshing interval time (in milliseconds).

Returns:

Refreshing interval time.

setDuration

void setDuration(int duration)

Sets monitoring duration (in milliseconds) till up to now. All monitored contents are updated in the specified duration. If this value is set to 0 or negative integer, it means to monitor the whole duration's contents from the time when the monitor was started to now.

Parameters:

duration - The specified duration time.

getDuration

int getDuration()

Gets currently monitoring duration time (in milliseconds).

Returns:

monitoring duration time.

update

void update()

Updates monitoring temporary storage contents according to the specified duration time. This method should be invoked whenever the monitoring interval time is reached.

isStarted

boolean isStarted()

Judges whether or not the current monitor has been started.

Returns:

true if this monitor has been started, or else return false.