DUE TO SPAM, SIGN-UP IS DISABLED. Goto Selfserve wiki signup and request an account.
...
The same reasoning applies to the key, value and result types defined in methods that take Aggregator, StreamPartitioner, KeyValueMapper, ValueMapper, ProcessorSupplier, TransformerSupplier, ValueTransformerSupplier, ForeachAction, StreamPartitioner, and ValueJoiner.
Public Interfaces
| Affected methods | Current argument type | New argument type |
|---|---|---|
(KGroupedStream|KGroupedTable).aggregate |
|
|
(KTable|KStream).filter*, KStream.branch | Predicate<K, V> | Predicate<? super K, ? super V> |
(KStream|KTable).groupBy |
|
|
KStream.(selectKey|map|flatMap), KTable.toStream | KeyValueMapper<K, V, X> | KeyValueMapper<? super K, ? super V, ? extends X> |
(KStream|KTable).mapValues, KStream.flatMapValues | ValueMapper<V, X> | ValueMapper<? super V, ? extends X> |
KStream.transform | TransformerSupplier<K, V, X> | TransformerSupplier<? super K, ? super V, X> |
| ValueTransformerSupplier<V, X> | ValueTransformerSupplier<? super V, X> |
(KStream|Ktable).foreach | ForeachAction<K, V> | ForeachAction<? super K, ? super V> |
| ProcessorSupplier<K, V> | ProcessorSupplier<? super K, ? super V> |
(KStream|KTable).*join | ValueJoiner<K, V, R> | ValueJoiner<? super K, ? super V, ? extends R> |
| StreamPartitioner<K, V> | StreamPartitioner<? super K, ? super V> |
KafkaStreams.metadataForKey | StreamPartitioner<K, V> | StreamPartitioner<? super K, ? super V> |
...
Once we drop support for 1.7 we can always decide to switch to approach 2. without breaking source compatibility, by making a proposal similar to this KIP.
Notes
...
Update 2017-01-18: In light of
| Jira | ||||||
|---|---|---|---|---|---|---|
|
TransformerSupplier and ValueTransformerSupplier...