com.groiss.timer

Class TimerManager

java.lang.Object

com.groiss.timer.TimerManager

All Implemented Interfaces:

Lifecycle, Service

public class TimerManager
extends Object
implements Service

The timer manager is the service controlling the timer executions.

Constructor Summary

Constructors

Constructor and Description
TimerManager()

Method Summary

Modifier and Type	Method and Description
boolean	isRunning() Ask the object if it has been started
void	reconfigure() Reschedule the timers after some properties of a timer has been changed.
static void	resetExceptions(TimerEntry tEntry) Empty the list of sent exceptions.
void	showQueue(HttpServletRequest req, HttpServletResponse res) Shows an overview of the timer subsystem.
void	shutdown() This method is called on shutdown.
void	startup() This method is called when the object is "started".
static void	timerException(TimerEntry tEntry, Persistent so, String message, Throwable e) This method is for exception handling in a timer task.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimerManager

public TimerManager()

Method Detail

startup

public void startup()

Description copied from interface: Lifecycle

This method is called when the object is "started".

Specified by:

startup in interface Lifecycle

shutdown

public void shutdown()

Description copied from interface: Lifecycle

This method is called on shutdown.

Specified by:

shutdown in interface Lifecycle

isRunning

public boolean isRunning()

Description copied from interface: Service

Ask the object if it has been started

Specified by:

isRunning in interface Service

Returns:

true if running.

reconfigure

public void reconfigure()

Reschedule the timers after some properties of a timer has been changed.

showQueue

public void showQueue(HttpServletRequest req,
                      HttpServletResponse res)
               throws Exception

Shows an overview of the timer subsystem. Useful for debugging.

Throws:

Exception

resetExceptions

public static void resetExceptions(TimerEntry tEntry)

Empty the list of sent exceptions.

timerException

public static void timerException(TimerEntry tEntry,
                                  Persistent so,
                                  String message,
                                  Throwable e)

This method is for exception handling in a timer task. It performs two actions: (1) a mail is sent to the administrator, (2) the exception is stored in a list for preventing sending the same mail again.

Parameters:

tEntry - the timer entry.

so - a context object

message - the error message

e - the exception you want to report.