IN
- Type of the input elementsOUT
- Type of the output elementpublic abstract class RichPatternSelectFunction<IN,OUT> extends AbstractRichFunction implements PatternSelectFunction<IN,OUT>
PatternSelectFunction
. As a RichFunction
, it gives access to
the RuntimeContext
and provides setup and teardown
methods: RichFunction.open(OpenContext)
and RichFunction.close()
.Constructor and Description |
---|
RichPatternSelectFunction() |
Modifier and Type | Method and Description |
---|---|
abstract OUT |
select(Map<String,List<IN>> pattern)
Generates a result from the given map of events.
|
close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
open
public abstract OUT select(Map<String,List<IN>> pattern) throws Exception
PatternSelectFunction
select
in interface PatternSelectFunction<IN,OUT>
pattern
- Map containing the found pattern. Events are identified by their namesException
- This method may throw exceptions. Throwing an exception will cause the
operation to fail and may trigger recovery.Copyright © 2014–2024 The Apache Software Foundation. All rights reserved.