io.pcp.parfait

Interface Monitor

All Known Implementing Classes:

PcpMonitorBridge.PcpMonitorBridgeMonitor

public interface Monitor

A monitor is notified of any changes to the value of any Monitorable objects it is attached to. This makes it effectively an 'output sink' for all monitorable changes. When a Monitorable changes value, it will notify all Monitors via valueChanged(Monitorable). Note that Monitors are under no obligation to process this immediately - they may elect to queue the notification for later update, swallow intermediate updates, etc., depending on implementation.

Method Summary

Modifier and Type	Method and Description
void	valueChanged(Monitorable<?> monitorable) Notifies the Monitor about a change in the underlying value of a Monitorable.

Method Detail

valueChanged

void valueChanged(Monitorable<?> monitorable)

Notifies the Monitor about a change in the underlying value of a Monitorable. It is not guaranteed that the value obtained by Monitorable.get() will return the value that triggered the update, as the value may update in the meantime.

Parameters:

monitorable - the Monitorable whose value has changed.