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https://issues.apache.org/jira/browse/KAFKA-2388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14702644#comment-14702644
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Onur Karaman commented on KAFKA-2388:
-------------------------------------
Yup I think we're on the same page.
> subscribe(topic)/unsubscribe(topic) should either take a callback to allow
> user to handle exceptions or it should be synchronous.
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-2388
> URL: https://issues.apache.org/jira/browse/KAFKA-2388
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Jiangjie Qin
> Assignee: Jason Gustafson
>
> According to the mailing list discussion on the consumer interface, we'll
> replace:
> {code}
> public void subscribe(String... topics);
> public void subscribe(TopicPartition... partitions);
> public Set<TopicPartition> subscriptions();
> {code}
> with:
> {code}
> void subscribe(List<String> topics, RebalanceCallback callback);
> void assign(List<TopicPartition> partitions);
> List<String> subscriptions();
> List<TopicPartition> assignments();
> {code}
> We don't need the unsubscribe APIs anymore.
> The RebalanceCallback would look like:
> {code}
> interface RebalanceCallback {
> void onAssignment(List<TopicPartition> partitions);
> void onRevocation(List<TopicPartition> partitions);
> // handle non-existing topics, etc.
> void onError(Exception e);
> }
> {code}
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