net.openhft.chronicle.core.shutdown

Class PriorityHook

java.lang.Object

net.openhft.chronicle.core.shutdown.PriorityHook

public class PriorityHook
extends Object

Collects all hook that need to be run during shutdown to execute them in controlled order.

Method Summary

Modifier and Type	Method and Description
static boolean	add(int priority, Runnable hook) Add a shutdown hook with a specified priority.
static <H extends Hooklet> H	addAndGet(H hooklet) Add a custom shutdown hook.
static void	clear()
static PriorityHook	getRegisteredHook()
void	onShutdown()

Methods inherited from class java.lang.Object

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

Method Detail

add

public static boolean add(int priority,
                          Runnable hook)

Add a shutdown hook with a specified priority.

Will prevent adding the same hook (by parameter's class) more than once, return false in that case.

Parameters:

priority - See Hooklet.priority()

hook - Function that needs to be run during shutdown.

Returns:

true if hook was not present and is now added

addAndGet

public static <H extends Hooklet> H addAndGet(H hooklet)

Add a custom shutdown hook.

Will prevent adding the same hook (by parameter's class) more than once, return the existing one in that case. See Hooklet.identity().

Parameters:

hooklet - Hook that needs to be run during shutdown in predictable order.

Returns:

The Hooklet instance that will be called during shutdown.

clear

public static void clear()

onShutdown

public void onShutdown()

getRegisteredHook

public static PriorityHook getRegisteredHook()