storm.trident.spout

Class BatchSpoutExecutor

java.lang.Object

storm.trident.spout.BatchSpoutExecutor

All Implemented Interfaces:

Serializable, ITridentSpout

public class BatchSpoutExecutor
extends Object
implements ITridentSpout

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	BatchSpoutExecutor.BatchSpoutEmitter
static class	BatchSpoutExecutor.EmptyCoordinator

Nested classes/interfaces inherited from interface storm.trident.spout.ITridentSpout

ITridentSpout.BatchCoordinator<X>, ITridentSpout.Emitter<X>

Constructor Summary

Constructors

Constructor and Description
BatchSpoutExecutor(IBatchSpout spout)

Method Summary

Methods

Modifier and Type	Method and Description
Map	getComponentConfiguration()
ITridentSpout.BatchCoordinator	getCoordinator(String txStateId, Map conf, TopologyContext context) The coordinator for a TransactionalSpout runs in a single thread and indicates when batches of tuples should be emitted and when transactions should commit.
ITridentSpout.Emitter	getEmitter(String txStateId, Map conf, TopologyContext context) The emitter for a TransactionalSpout runs as many tasks across the cluster.
Fields	getOutputFields()

Methods inherited from class java.lang.Object

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

Constructor Detail

BatchSpoutExecutor

public BatchSpoutExecutor(IBatchSpout spout)

Method Detail

getCoordinator

public ITridentSpout.BatchCoordinator getCoordinator(String txStateId,
                                            Map conf,
                                            TopologyContext context)

Description copied from interface: ITridentSpout

The coordinator for a TransactionalSpout runs in a single thread and indicates when batches of tuples should be emitted and when transactions should commit. The Coordinator that you provide in a TransactionalSpout provides metadata for each transaction so that the transactions can be replayed.

Specified by:

getCoordinator in interface ITridentSpout

getEmitter

public ITridentSpout.Emitter getEmitter(String txStateId,
                               Map conf,
                               TopologyContext context)

Description copied from interface: ITridentSpout

The emitter for a TransactionalSpout runs as many tasks across the cluster. Emitters are responsible for emitting batches of tuples for a transaction and must ensure that the same batch of tuples is always emitted for the same transaction id.

Specified by:

getEmitter in interface ITridentSpout

getComponentConfiguration

public Map getComponentConfiguration()

Specified by:

getComponentConfiguration in interface ITridentSpout

getOutputFields

public Fields getOutputFields()

Specified by:

getOutputFields in interface ITridentSpout