org.objectweb.cjdbc.controller.core.shutdown
Class ShutdownThread

java.lang.Object
  org.objectweb.cjdbc.controller.core.shutdown.ShutdownThread

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

ControllerShutdownThread, VirtualDatabaseShutdownThread

public abstract class ShutdownThread

extends java.lang.Object

implements java.lang.Runnable

Skeleton for shutdown threads. This includes Controller, VirtualDatabase and DatabaseBackend shutdown threads.

Author:

Emmanuel Cecchet , Nicolas Modrzyk

Field Summary

(package private) Trace	logger Logger instance.
java.lang.ThreadGroup	shutdownGroup Group to join onto when shutting down
protected int	shutdownLevel

Constructor Summary

ShutdownThread(int level)
Create a new shutdown thread

Method Summary

void	abortShutdown(java.lang.Exception cause) If shutdown fails ...
java.lang.ThreadGroup	getShutdownGroup() Returns the shutdownGroup value.
int	getShutdownLevel() Get shutdown level
void	run() Execute the shutdown
abstract void	shutdown() Specific implementation of the shutdown method.

Methods inherited from class java.lang.Object

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

Field Detail

shutdownGroup

public java.lang.ThreadGroup shutdownGroup

Group to join onto when shutting down

shutdownLevel

protected int shutdownLevel

logger

Trace logger

Logger instance.

Constructor Detail

ShutdownThread

public ShutdownThread(int level)

Create a new shutdown thread

Parameters:

level - Constants.SHUTDOWN_WAIT, Constants.SHUTDOWN_SAFE or Constants.SHUTDOWN_FORCE

Method Detail

getShutdownGroup

public java.lang.ThreadGroup getShutdownGroup()

Returns the shutdownGroup value.

Returns:

Returns the shutdownGroup.

getShutdownLevel

public int getShutdownLevel()

Get shutdown level

Returns:

level

run

public void run()

Execute the shutdown

Specified by:

run in interface java.lang.Runnable

See Also:

Runnable.run()

abortShutdown

public void abortShutdown(java.lang.Exception cause)

If shutdown fails ...

Parameters:

cause - why shutdown was aborted

shutdown

public abstract void shutdown()
                       throws ShutdownException

Specific implementation of the shutdown method.

Throws:

ShutdownException - if fails