org.apache.storm.trident.spout

Class TridentSpoutExecutor

java.lang.Object

org.apache.storm.trident.spout.TridentSpoutExecutor

All Implemented Interfaces:

Serializable, IComponent, ITridentBatchBolt

public class TridentSpoutExecutor
extends Object
implements ITridentBatchBolt

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	ID_FIELD
static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
TridentSpoutExecutor(String txStateId, String streamName, ITridentSpout<Object> spout)

Method Summary

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(BatchInfo info, Tuple input)
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 collector)

Methods inherited from class java.lang.Object

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

Field Detail

ID_FIELD

public static final String ID_FIELD

See Also:

Constant Field Values

LOG

public static final org.slf4j.Logger LOG

Constructor Detail

TridentSpoutExecutor

public TridentSpoutExecutor(String txStateId,
                            String streamName,
                            ITridentSpout<Object> spout)

Method Detail

prepare

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

Specified by:

prepare in interface ITridentBatchBolt

execute

public void execute(BatchInfo info,
                    Tuple input)

Specified by:

execute 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

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