org.apache.flink.storm.util

Class AbstractLineSpout

java.lang.Object

org.apache.flink.storm.util.AbstractLineSpout

All Implemented Interfaces:

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

Direct Known Subclasses:

FileSpout, InMemorySpout

public abstract class AbstractLineSpout
extends Object
implements backtype.storm.topology.IRichSpout

Base class for Spouts that read data line by line from an arbitrary source. The declared output schema has a single attribute called line and should be of type String.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	ATTRIBUTE_LINE
protected backtype.storm.spout.SpoutOutputCollector	collector

Constructor Summary

Constructors

Constructor and Description
AbstractLineSpout()

Method Summary

Modifier and Type	Method and Description
void	ack(Object msgId)
void	activate()
void	close()
void	deactivate()
void	declareOutputFields(backtype.storm.topology.OutputFieldsDeclarer declarer)
void	fail(Object msgId)
Map<String,Object>	getComponentConfiguration()
void	open(Map conf, backtype.storm.task.TopologyContext context, backtype.storm.spout.SpoutOutputCollector collector)

Methods inherited from class java.lang.Object

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

Methods inherited from interface backtype.storm.spout.ISpout

nextTuple

Field Detail

ATTRIBUTE_LINE

public static final String ATTRIBUTE_LINE

See Also:

Constant Field Values

collector

protected backtype.storm.spout.SpoutOutputCollector collector

Constructor Detail

AbstractLineSpout

public AbstractLineSpout()

Method Detail

open

public void open(Map conf,
                 backtype.storm.task.TopologyContext context,
                 backtype.storm.spout.SpoutOutputCollector collector)

Specified by:

open in interface backtype.storm.spout.ISpout

close

public void close()

Specified by:

close in interface backtype.storm.spout.ISpout

activate

public void activate()

Specified by:

activate in interface backtype.storm.spout.ISpout

deactivate

public void deactivate()

Specified by:

deactivate in interface backtype.storm.spout.ISpout

ack

public void ack(Object msgId)

Specified by:

ack in interface backtype.storm.spout.ISpout

fail

public void fail(Object msgId)

Specified by:

fail in interface backtype.storm.spout.ISpout

declareOutputFields

public void declareOutputFields(backtype.storm.topology.OutputFieldsDeclarer declarer)

Specified by:

declareOutputFields in interface backtype.storm.topology.IComponent

getComponentConfiguration

public Map<String,Object> getComponentConfiguration()

Specified by:

getComponentConfiguration in interface backtype.storm.topology.IComponent