org.apache.storm.trident.planner.processor

Class AppendCollector

java.lang.Object

org.apache.storm.trident.planner.processor.AppendCollector

All Implemented Interfaces:

TridentCollector

public class AppendCollector
extends Object
implements TridentCollector

Constructor Summary

Constructors

Constructor and Description
AppendCollector(TridentContext context)

Method Summary

Modifier and Type	Method and Description
void	emit(List<Object> values) Emits a tuple to a Stream.
void	flush() Flush any buffered tuples (when batching is enabled).
TridentTuple.Factory	getOutputFactory()
void	reportError(Throwable t) Reports an error.
void	setContext(ProcessorContext pc, TridentTuple t)

Methods inherited from class java.lang.Object

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

Constructor Detail

AppendCollector

public AppendCollector(TridentContext context)

Method Detail

setContext

public void setContext(ProcessorContext pc,
                       TridentTuple t)

emit

public void emit(List<Object> values)

Description copied from interface: TridentCollector

Emits a tuple to a Stream.

Specified by:

emit in interface TridentCollector

Parameters:

values - a list of values of which the tuple will be composed

flush

public void flush()

Description copied from interface: TridentCollector

Flush any buffered tuples (when batching is enabled).

Specified by:

flush in interface TridentCollector

reportError

public void reportError(Throwable t)

Description copied from interface: TridentCollector

Reports an error. The corresponding stack trace will be visible in the Storm UI.

Note that calling this method does not alter the processing of a batch. To explicitly fail a batch and trigger a replay, components should throw FailedException.

Specified by:

reportError in interface TridentCollector

Parameters:

t - The instance of the error (Throwable) being reported.

getOutputFactory

public TridentTuple.Factory getOutputFactory()