public class KeyedCountingBatchBolt extends BaseBatchBolt
Constructor and Description |
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KeyedCountingBatchBolt() |
Modifier and Type | Method and Description |
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void |
declareOutputFields(OutputFieldsDeclarer declarer)
Declare the output schema for all the streams of this topology.
|
void |
execute(Tuple tuple) |
void |
finishBatch() |
void |
prepare(Map conf,
TopologyContext context,
BatchOutputCollector collector,
Object id) |
getComponentConfiguration
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getComponentConfiguration
public void prepare(Map conf, TopologyContext context, BatchOutputCollector collector, Object id)
public void execute(Tuple tuple)
public void finishBatch()
public void declareOutputFields(OutputFieldsDeclarer declarer)
IComponent
Declare the output schema for all the streams of this topology.
declarer
- this is used to declare output stream ids, output fields, and whether or not each output stream is a direct streamCopyright © 2019 The Apache Software Foundation. All Rights Reserved.