scone.util
Class ServiceThread

java.lang.Object
  java.lang.Thread
      scone.util.ServiceThread

All Implemented Interfaces:

java.lang.Runnable

public abstract class ServiceThread
extends java.lang.Thread

a Thread for service tasks like cache cleaning. The Thread runs a loop that will sleep for a specified interval and then execute the doService() method. The Thread may be retired by calling the retire() method.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

ServiceThread(int sleepTime)
creates a new ServiceThread.

Method Summary

abstract void	cleanUp() overwrite this method to define the clean up tasks for the end of the Thread
abstract void	doService() overwrite this method to define the service task of the Thread.
void	retire() retires the ServiceThread.
void	run() the run method

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

ServiceThread

public ServiceThread(int sleepTime)

creates a new ServiceThread.

Parameters:

sleepTime - the sleep interval

Method Detail

run

public void run()

the run method

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

retire

public void retire()

retires the ServiceThread. Execution will be interrupted and the cleanUp() method will be called.

doService

public abstract void doService()

overwrite this method to define the service task of the Thread.

cleanUp

public abstract void cleanUp()

overwrite this method to define the clean up tasks for the end of the Thread