Package org.apache.storm.trident.planner

Class SubtopologyBolt

java.lang.Object

org.apache.storm.trident.planner.SubtopologyBolt

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

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	SubtopologyBolt.InitialReceiver

Constructor Summary

Constructors

Constructor	Description
SubtopologyBolt(org.apache.storm.shade.org.jgrapht.graph.DefaultDirectedGraph<Node,IndexedEdge> graph, Set<Node> nodes, Map<Node,String> batchGroups)

Method Summary

Modifier and Type	Method	Description
void	cleanup()
void	declareOutputFields(OutputFieldsDeclarer declarer)	Declare the output schema for all the streams of this topology.
void	execute(BatchInfo batchInfo, Tuple tuple)
void	finishBatch(BatchInfo batchInfo)
Map<String,Object>	getComponentConfiguration()	Declare configuration specific to this component.
Object	initBatchState(String batchGroup, Object batchId)
void	prepare(Map<String,Object> conf, TopologyContext context, BatchOutputCollector batchCollector)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SubtopologyBolt

public SubtopologyBolt(org.apache.storm.shade.org.jgrapht.graph.DefaultDirectedGraph<Node,IndexedEdge> graph,
 Set<Node> nodes,
 Map<Node,String> batchGroups)

Method Details

prepare

public void prepare(Map<String,Object> conf,
 TopologyContext context,
 BatchOutputCollector batchCollector)

Specified by:

prepare in interface ITridentBatchBolt

execute

public void execute(BatchInfo batchInfo,
 Tuple tuple)

Specified by:

execute in interface ITridentBatchBolt

finishBatch

public void finishBatch(BatchInfo batchInfo)

Specified by:

finishBatch in interface ITridentBatchBolt

initBatchState

public Object initBatchState(String batchGroup,
 Object batchId)

Specified by:

initBatchState in interface ITridentBatchBolt

cleanup

public void cleanup()

Specified by:

cleanup in interface ITridentBatchBolt

declareOutputFields

public void declareOutputFields(OutputFieldsDeclarer declarer)

Description copied from interface: IComponent

Declare the output schema for all the streams of this topology.

Specified by:

declareOutputFields in interface IComponent

Parameters:

declarer - this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream

getComponentConfiguration

public Map<String,Object> getComponentConfiguration()

Description copied from interface: IComponent

Declare 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 using TopologyBuilder

Specified by:

getComponentConfiguration in interface IComponent