dcapwell commented on code in PR #3157:
URL: https://github.com/apache/cassandra/pull/3157#discussion_r1511779187
##########
src/java/org/apache/cassandra/service/accord/AccordStateCache.java:
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@@ -278,13 +303,36 @@ public Instance(
this.nodeFactory = nodeFactory;
}
+ public void register(Listener<K, V> l)
+ {
+ if (listeners == null)
+ listeners = new ArrayList<>();
+ listeners.add(l);
+ }
+
+ public void unregister(Listener<K, V> l)
+ {
+ if (listeners == null)
+ throw new AssertionError("No listeners exist");
+ if (!listeners.remove(l))
+ throw new AssertionError("Listener was not registered");
+ if (listeners.isEmpty())
+ listeners = null;
+ }
+
public Stream<AccordCachingState<K, V>> stream()
{
return cache.entrySet().stream()
- .filter(e ->
keyClass.isAssignableFrom(e.getKey().getClass()))
Review Comment:
we were matching multiple instances due to CFK stuff having the same type
key...
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