PatternFlatSelectFunction (Flink : 2.0-SNAPSHOT API)

Type Parameters:

IN -

OUT -

All Superinterfaces:

Function, Serializable

All Known Implementing Classes:

RichPatternFlatSelectFunction
```
public interface PatternFlatSelectFunction<IN,OUT>
extends Function, Serializable
```
Base interface for a pattern select function which can produce multiple resulting elements. A pattern flat select function is called with a map of detected events which are identified by their names. The names are defined by the Pattern specifying 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());
 
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`flatSelect(Map<String,List<IN>> pattern, Collector<OUT> out)`	Generates zero or more resulting elements given a map of detected pattern events.

- Method Detail
  - flatSelect
```
void flatSelect(Map<String,List<IN>> pattern,
                Collector<OUT> out)
         throws Exception
```
    Generates zero or more resulting elements given a map of detected pattern events. The events are identified by their specified names.
    
    Parameters:
    
    pattern - Map containing the found pattern. Events are identified by their names.
    
    out - Collector used to output the generated elements
    
    Throws:
    
    Exception - This method may throw exceptions. Throwing an exception will cause the operation to fail and may trigger recovery.