/*
* NOTE: This copyright does *not* cover user programs that use HQ
* program services by normal system calls through the application
* program interfaces provided as part of the Hyperic Plug-in Development
* Kit or the Hyperic Client Development Kit - this is merely considered
* normal use of the program, and does *not* fall under the heading of
* "derived work".
*
* Copyright (C) [2004-2008], Hyperic, Inc.
* This file is part of HQ.
*
* HQ is free software; you can redistribute it and/or modify
* it under the terms version 2 of the GNU General Public License as
* published by the Free Software Foundation. This program is distributed
* in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
package org.hyperic.util.timer;
/**
* A singleton clock that bases the current time off the system time.
*/
public class SystemTimeClock implements Clock {
private static final Clock INSTANCE = new SystemTimeClock();
/**
* Singletons should have a private constructor.
*/
private SystemTimeClock() {
}
/**
* @return The clock instance.
*/
public static Clock getInstance() {
return INSTANCE;
}
/**
* @see org.hyperic.util.timer.Clock#currentTimeMillis()
*/
public long currentTimeMillis() {
return System.currentTimeMillis();
}
}