com.inductiveautomation.ignition.gateway.opc

Class CustomSubscriptionManager.NodeList

java.lang.Object

com.inductiveautomation.ignition.gateway.opc.CustomSubscriptionManager.NodeList

Enclosing class:

CustomSubscriptionManager

protected class CustomSubscriptionManager.NodeList
extends java.lang.Object

3/28/16 - Colby: I rewrote this to avoid a deadlock when the tags being read are actually from the same system, going through the "expose configured tags" option. Part of that is to read outside of the lock. But this means we must know that the list of nodes won't change. Instead of copy it on each exec, which will happen millions of times, I decided to copy on modification. So, when tags are added/removed from this manager, the list is rebuilt. If the execute function is in the middle of reading, it will finish and update nodes that are potentially no longer subscribed, which should be fine.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	NodeList()

Method Summary

Modifier and Type	Method and Description
void	addAll(java.util.Collection<? extends SubscribableNode> toAdd)
java.util.List<SubscribableNode>	getNodes()
void	removeAll(java.util.Collection<? extends SubscribableNode> toRemove)

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeList

protected NodeList()

Method Detail

addAll

public void addAll(java.util.Collection<? extends SubscribableNode> toAdd)

removeAll

public void removeAll(java.util.Collection<? extends SubscribableNode> toRemove)

getNodes

public java.util.List<SubscribableNode> getNodes()