org.apache.flink.storm.util

Interface FiniteSpout

All Superinterfaces:

backtype.storm.topology.IComponent, backtype.storm.topology.IRichSpout, backtype.storm.spout.ISpout, Serializable

All Known Implementing Classes:

NullTerminatingSpout

public interface FiniteSpout
extends backtype.storm.topology.IRichSpout

This interface represents a spout that emits a finite number of records. Common spouts emit infinite streams by default. To change this behavior and take advantage of Flink's finite-source capabilities, the spout should implement this interface.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	reachedEnd() When returns true, the spout has reached the end of the stream.

Methods inherited from interface backtype.storm.spout.ISpout

ack, activate, close, deactivate, fail, nextTuple, open

Methods inherited from interface backtype.storm.topology.IComponent

declareOutputFields, getComponentConfiguration

Method Detail

reachedEnd

boolean reachedEnd()

When returns true, the spout has reached the end of the stream.

Returns:

true, if the spout's stream reached its end, false otherwise