Package org.apache.storm.trident.spout

Class BatchSpoutExecutor.BatchSpoutEmitter

java.lang.Object

org.apache.storm.trident.spout.BatchSpoutExecutor.BatchSpoutEmitter

All Implemented Interfaces:

ITridentSpout.Emitter<Object>

Enclosing class:

BatchSpoutExecutor

public class BatchSpoutExecutor.BatchSpoutEmitter
extends Object
implements ITridentSpout.Emitter<Object>

Constructor Summary

Constructors

Constructor	Description
BatchSpoutEmitter()

Method Summary

Modifier and Type	Method	Description
void	close()	Release any resources held by this emitter.
void	emitBatch(TransactionAttempt tx, Object coordinatorMeta, TridentCollector collector)	Emit a batch for the specified transaction attempt and metadata for the transaction.
void	success(TransactionAttempt tx)	This attempt committed successfully, so all state for this commit and before can be safely cleaned up.

Methods inherited from class java.lang.Object

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

Constructor Detail

BatchSpoutEmitter

public BatchSpoutEmitter()

Method Detail

emitBatch

public void emitBatch(TransactionAttempt tx,
                      Object coordinatorMeta,
                      TridentCollector collector)

Description copied from interface: ITridentSpout.Emitter

Emit a batch for the specified transaction attempt and metadata for the transaction. The metadata was created by the Coordinator in the initializeTransaction method. This method must always emit the same batch of tuples across all tasks for the same transaction id.

Specified by:

emitBatch in interface ITridentSpout.Emitter<Object>

Parameters:

tx - transaction id

coordinatorMeta - metadata from the coordinator defining this transaction

collector - output tuple collector

success

public void success(TransactionAttempt tx)

Description copied from interface: ITridentSpout.Emitter

This attempt committed successfully, so all state for this commit and before can be safely cleaned up.

Specified by:

success in interface ITridentSpout.Emitter<Object>

Parameters:

tx - attempt object containing transaction id and attempt number

close

public void close()

Description copied from interface: ITridentSpout.Emitter

Release any resources held by this emitter.

Specified by:

close in interface ITridentSpout.Emitter<Object>