public class TestWordCounter extends BaseBasicBolt
| Modifier and Type | Field and Description |
|---|---|
static org.slf4j.Logger |
LOG |
| Constructor and Description |
|---|
TestWordCounter() |
| Modifier and Type | Method and Description |
|---|---|
void |
cleanup() |
void |
declareOutputFields(OutputFieldsDeclarer declarer)
Declare the output schema for all the streams of this topology.
|
void |
execute(Tuple input,
BasicOutputCollector collector)
Process the input tuple and optionally emit new tuples based on the input tuple.
|
protected String |
getTupleValue(Tuple t,
int idx) |
void |
prepare(Map<String,Object> topoConf,
TopologyContext context) |
getComponentConfigurationclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetComponentConfigurationpublic void prepare(Map<String,Object> topoConf, TopologyContext context)
prepare in interface IBasicBoltprepare in class BaseBasicBoltpublic void execute(Tuple input, BasicOutputCollector collector)
IBasicBoltProcess the input tuple and optionally emit new tuples based on the input tuple.
All acking is managed for you. Throw a FailedException if you want to fail the tuple.
public void cleanup()
cleanup in interface IBasicBoltcleanup in class BaseBasicBoltpublic void declareOutputFields(OutputFieldsDeclarer declarer)
IComponentDeclare 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 © 2021 The Apache Software Foundation. All rights reserved.