Github user rmetzger commented on a diff in the pull request:
https://github.com/apache/flink/pull/747#discussion_r32784302
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/SuccessfulCheckpoint.java
---
@@ -64,6 +73,22 @@ public long getTimestamp() {
return states;
}
+ /**
+ * Returns the task state included in the checkpoint for a given
JobVertexID if it exists or
+ * null if no state is included for that id.
+ *
+ * @param jobVertexID
+ * @return
+ */
+ public StateForTask getState(JobVertexID jobVertexID)
+ {
+ if(vertexToState.containsKey(jobVertexID)) {
+ return vertexToState.get(jobVertexID);
--- End diff --
I think you can save one map lookup by calling get() immediately. It will
return null on a missing key.
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