Package org.apache.storm.starter
Class ReachTopology.CountAggregator
java.lang.Object
org.apache.storm.topology.base.BaseComponent
org.apache.storm.topology.base.BaseBatchBolt<Object>
org.apache.storm.starter.ReachTopology.CountAggregator
- All Implemented Interfaces:
Serializable,IBatchBolt<Object>,IComponent
- Enclosing class:
- ReachTopology
- See Also:
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoiddeclareOutputFields(OutputFieldsDeclarer declarer) Declare the output schema for all the streams of this topology.voidvoidvoidprepare(Map<String, Object> conf, TopologyContext context, BatchOutputCollector collector, Object id) Methods inherited from class org.apache.storm.topology.base.BaseComponent
getComponentConfigurationMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.apache.storm.topology.IComponent
getComponentConfiguration
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Constructor Details
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CountAggregator
public CountAggregator()
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Method Details
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prepare
public void prepare(Map<String, Object> conf, TopologyContext context, BatchOutputCollector collector, Object id) -
execute
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finishBatch
public void finishBatch() -
declareOutputFields
Description copied from interface:IComponentDeclare the output schema for all the streams of this topology.- Parameters:
declarer- this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream
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