| Interface | Description |
|---|---|
| ClosableFunction |
A function that can be closed after its execution.
|
| FilterFunction<M> |
Specifies whether a message should be retained for further processing.
|
| FlatMapFunction<M,OM> |
Transforms an input message into a collection of 0 or more messages, possibly of a different type.
|
| FoldLeftFunction<M,WV> |
Incrementally updates the aggregated value as messages are added.
|
| InitableFunction |
A function that can be initialized before execution.
|
| JoinFunction<K,M,JM,RM> |
Joins incoming messages in two streams by key.
|
| MapFunction<M,OM> |
Transforms an input message into another message, possibly of a different type.
|
| ScheduledFunction<K,OM> |
Allows scheduling a callback for a specific epoch-time.
|
| SinkFunction<M> |
Allows sending a message to an output system.
|
| StreamTableJoinFunction<K,M,R,JM> |
Joins incoming messages with records from a table by the join key.
|
| SupplierFunction<T> |
A supplier to return a new value at each invocation
|
| WatermarkFunction<T> |
Allows handling of watermarks.
|