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https://issues.apache.org/jira/browse/FLINK-5113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15742218#comment-15742218
 ] 

ASF GitHub Bot commented on FLINK-5113:
---------------------------------------

Github user zentol commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2939#discussion_r91961116
  
    --- Diff: 
flink-connectors/flink-connector-kafka-base/src/test/java/org/apache/flink/streaming/connectors/kafka/testutils/ValidatingExactlyOnceSink.java
 ---
    @@ -68,15 +69,18 @@ else if (duplicateChecker.nextClearBit(0) != 
numElementsTotal) {
        }
     
        @Override
    -   public Tuple2<Integer, BitSet> snapshotState(long checkpointId, long 
checkpointTimestamp) {
    -           LOG.info("Snapshot of counter "+numElements+" at checkpoint 
"+checkpointId);
    -           return new Tuple2<>(numElements, duplicateChecker);
    +   public List<Tuple2<Integer, BitSet>> snapshotState(long checkpointId, 
long timestamp) throws Exception {
    +           LOG.info("Snapshot of counter "+numElements+" at checkpoint "+ 
checkpointId);
    --- End diff --
    
    either add all missing spaces or none :P


> Make all Testing Functions implement CheckpointedFunction Interface.
> --------------------------------------------------------------------
>
>                 Key: FLINK-5113
>                 URL: https://issues.apache.org/jira/browse/FLINK-5113
>             Project: Flink
>          Issue Type: Improvement
>          Components: DataStream API
>    Affects Versions: 1.2.0
>            Reporter: Kostas Kloudas
>            Assignee: Kostas Kloudas
>             Fix For: 1.2.0
>
>
> Currently stateful functions implement the (old) Checkpointed interface.
> This is issue aims at porting all these function to the new 
> CheckpointedFunction interface, so that they can leverage the new 
> capabilities by it. 



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