Package io.deephaven.engine.updategraph

Class EmptyNotification

java.lang.Object

io.deephaven.engine.updategraph.AbstractNotification

io.deephaven.engine.updategraph.EmptyNotification

All Implemented Interfaces:

LogOutputAppendable, NotificationQueue.Notification, IntrusiveDoublyLinkedNode<NotificationQueue.Notification>, Runnable

Direct Known Subclasses:

EmptyErrorNotification

public class EmptyNotification
extends AbstractNotification

A NotificationQueue.Notification that does not actually notify anything.

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.util.datastructures.linked.IntrusiveDoublyLinkedNode

IntrusiveDoublyLinkedNode.Adapter<NODE_TYPE extends IntrusiveDoublyLinkedNode<NODE_TYPE>>, IntrusiveDoublyLinkedNode.Impl<NODE_TYPE extends IntrusiveDoublyLinkedNode.Impl<NODE_TYPE>>

Constructor Summary

Constructors

Constructor	Description
EmptyNotification()

Method Summary

Modifier and Type	Method	Description
LogOutput	append(LogOutput logOutput)
boolean	canExecute(long step)	Can this notification be executed? That is, are all of it's dependencies satisfied.
boolean	isTerminal()	Terminal notifications guarantee that they will not queue additional notifications or mutate data structures that should result in additional notifications.
final void	run()

Methods inherited from class io.deephaven.engine.updategraph.AbstractNotification

getNext, getPrev, mustExecuteWithUpdateGraphLock, setNext, setPrev, toString

Methods inherited from class java.lang.Object

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

Constructor Details

EmptyNotification

public EmptyNotification()

Method Details

isTerminal

public boolean isTerminal()

Description copied from interface: NotificationQueue.Notification

Terminal notifications guarantee that they will not queue additional notifications or mutate data structures that should result in additional notifications. They are in turn guaranteed to be called after all non-terminal notifications for a given cycle through the notification queue.

Specified by:

isTerminal in interface NotificationQueue.Notification

Overrides:

isTerminal in class AbstractNotification

Returns:

True iff this notification is terminal.

canExecute

public boolean canExecute(long step)

Description copied from interface: NotificationQueue.Notification

Can this notification be executed? That is, are all of it's dependencies satisfied.

Parameters:

step - The step for which we are testing satisfaction

Returns:

true if this notification can be executed, false if it has unmet dependencies

append

public LogOutput append(LogOutput logOutput)

Specified by:

append in interface LogOutputAppendable

Overrides:

append in class AbstractNotification

run

public final void run()