package com.jamonapi;



/** The most basic of timing Monitors.  It is very close in performance to making straight calls to System.currentTimeMillis().

 *  This class is used primarily for comparison to the best case performance numbers for all of the other Monitors,

 *  however it may also be used to make timing measurements.

 *

 *  BasicTimingMonitors are not thread safe.  Monitors returned via MonitorFactory are.

 *

 * Sample call:

 *  BasicTimingMonitor mon=new BasicTimingMonitor();

 *  mon.start();

 *  ...code being monitored...

 *  mon.stop();

 **/



final public class BasicTimingMonitor {

    // Note. this class does not implement the Monitor interface and is not used in the

    // rest of the monitor framework. However it can be used if performance comparable

    // to simple times to currentTimeMillis() are required.

    private long startTime;

    

    public void start() {

        startTime=System.currentTimeMillis();

    }

    

    public long stop() {

        return System.currentTimeMillis()-startTime;

    }

}