Package org.apache.storm.trident.planner
Class SubtopologyBolt
- java.lang.Object
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- org.apache.storm.trident.planner.SubtopologyBolt
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- All Implemented Interfaces:
Serializable,IComponent,ITridentBatchBolt
public class SubtopologyBolt extends Object implements ITridentBatchBolt
A Bolt that does processing for a subsection of the complete graph.- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected static classSubtopologyBolt.InitialReceiver
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Constructor Summary
Constructors Constructor Description SubtopologyBolt(org.apache.storm.shade.org.jgrapht.graph.DefaultDirectedGraph<Node,IndexedEdge> graph, Set<Node> nodes, Map<Node,String> batchGroups)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidcleanup()voiddeclareOutputFields(OutputFieldsDeclarer declarer)Declare the output schema for all the streams of this topology.voidexecute(BatchInfo batchInfo, Tuple tuple)voidfinishBatch(BatchInfo batchInfo)Map<String,Object>getComponentConfiguration()Declare configuration specific to this component.ObjectinitBatchState(String batchGroup, Object batchId)voidprepare(Map<String,Object> conf, TopologyContext context, BatchOutputCollector batchCollector)
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Method Detail
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prepare
public void prepare(Map<String,Object> conf, TopologyContext context, BatchOutputCollector batchCollector)
- Specified by:
preparein interfaceITridentBatchBolt
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execute
public void execute(BatchInfo batchInfo, Tuple tuple)
- Specified by:
executein interfaceITridentBatchBolt
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finishBatch
public void finishBatch(BatchInfo batchInfo)
- Specified by:
finishBatchin interfaceITridentBatchBolt
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initBatchState
public Object initBatchState(String batchGroup, Object batchId)
- Specified by:
initBatchStatein interfaceITridentBatchBolt
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cleanup
public void cleanup()
- Specified by:
cleanupin interfaceITridentBatchBolt
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declareOutputFields
public void declareOutputFields(OutputFieldsDeclarer declarer)
Description copied from interface:IComponentDeclare the output schema for all the streams of this topology.- Specified by:
declareOutputFieldsin interfaceIComponent- 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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getComponentConfiguration
public Map<String,Object> getComponentConfiguration()
Description copied from interface:IComponentDeclare configuration specific to this component. Only a subset of the "topology.*" configs can be overridden. The component configuration can be further overridden when constructing the topology usingTopologyBuilder- Specified by:
getComponentConfigurationin interfaceIComponent
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