Package hudson.model

Class Queue.Saver

java.lang.Object

hudson.model.queue.QueueListener

hudson.model.Queue.Saver

All Implemented Interfaces:

ExtensionPoint, Runnable

Enclosing class:

Queue

@Extension
@Restricted(org.kohsuke.accmod.restrictions.NoExternalUse.class)
public static final class Queue.Saver
extends QueueListener
implements Runnable

Schedule Queue.save() call for near future once items change. Ignore all changes until the time the save takes place. Once queue is restored after a crash, items stages might not be accurate until the next #maintain() - this is not a problem as the items will be reshuffled first and then scheduled during the next maintainance cycle. Implementation note: Queue.load() calls QueueListener hooks for every item deserialized that can hammer the persistance on load. The problem is avoided by delaying the actual save for the time long enough for queue to load so the save operations will collapse into one. Also, items are persisted as buildable or blocked in vast majority of cases and those stages does not trigger the save here.

Nested Class Summary

Nested classes/interfaces inherited from interface hudson.ExtensionPoint

ExtensionPoint.LegacyInstancesAreScopedToHudson

Constructor Summary

Constructors

Constructor	Description
Saver()

Method Summary

Modifier and Type	Method	Description
void	onEnterWaiting(Queue.WaitingItem wi)	When a task is submitted to the queue, it first gets to the waiting phase, where it spends until the quiet period runs out and the item becomes executable.
void	onLeft(Queue.LeftItem li)	The item has left the queue, either by getting cancelled or by getting picked up by an executor and starts running.
void	run()

Methods inherited from class hudson.model.queue.QueueListener

all, onEnterBlocked, onEnterBuildable, onLeaveBlocked, onLeaveBuildable, onLeaveWaiting

Methods inherited from class java.lang.Object

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

Constructor Details

Saver

public Saver()

Method Details

onEnterWaiting

public void onEnterWaiting(Queue.WaitingItem wi)

Description copied from class: QueueListener

When a task is submitted to the queue, it first gets to the waiting phase, where it spends until the quiet period runs out and the item becomes executable.

Overrides:

onEnterWaiting in class QueueListener

See Also:

• Queue.WaitingItem.timestamp

onLeft

public void onLeft(Queue.LeftItem li)

Description copied from class: QueueListener

The item has left the queue, either by getting cancelled or by getting picked up by an executor and starts running.

Overrides:

onLeft in class QueueListener

run

public void run()

Specified by:

run in interface Runnable