Github user dawidwys commented on a diff in the pull request:
https://github.com/apache/flink/pull/3477#discussion_r106150129
--- Diff:
flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa/ComputationState.java
---
@@ -74,11 +80,35 @@ public long getStartTimestamp() {
return state;
}
+ public State<T> getPreviousState() {
+ return previousState;
+ }
+
public T getEvent() {
return event;
}
public DeweyNumber getVersion() {
return version;
}
+
+ public static <T> ComputationState<T> createStartState(final State<T>
state) {
+ Preconditions.checkArgument(state.isStart());
+ return new ComputationState<>(state, null, null, -1L, new
DeweyNumber(1), -1L);
+ }
+
+ public static <T> ComputationState<T> createStartState(final State<T>
state, final DeweyNumber version) {
+ Preconditions.checkArgument(state.isStart());
+ return new ComputationState<>(state, null, null, -1L, version,
-1L);
+ }
+
--- End diff --
Done
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