public interface PatternFlatSelectFunction<IN,OUT> extends Function, Serializable
Patternspecifying the sought-after pattern. Additionally, a collector is provided as a parameter. The collector is used to emit an arbitrary number of resulting elements.
PatternStream<IN> pattern = ... DataStream<OUT> result = pattern.flatSelect(new MyPatternFlatSelectFunction());
|Modifier and Type||Method and Description|
Generates zero or more resulting elements given a map of detected pattern events.
void flatSelect(Map<String,List<IN>> pattern, Collector<OUT> out) throws Exception
pattern- Map containing the found pattern. Events are identified by their names.
out- Collector used to output the generated elements
Exception- This method may throw exceptions. Throwing an exception will cause the operation to fail and may trigger recovery.
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