Package org.apache.storm.drpc

Class PrepareRequest

java.lang.Object

org.apache.storm.topology.base.BaseComponent

org.apache.storm.topology.base.BaseBasicBolt

org.apache.storm.drpc.PrepareRequest

All Implemented Interfaces:

Serializable, IBasicBolt, IComponent

public class PrepareRequest
extends BaseBasicBolt

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ARGS_STREAM
static final String	ID_STREAM
static final String	RETURN_STREAM

Constructor Summary

Constructors

Constructor	Description
PrepareRequest()

Method Summary

Modifier and Type	Method	Description
void	declareOutputFields(OutputFieldsDeclarer declarer)	Declare the output schema for all the streams of this topology.
void	execute(Tuple tuple, BasicOutputCollector collector)	Process the input tuple and optionally emit new tuples based on the input tuple.
void	prepare(Map<String,Object> map, TopologyContext context)

Methods inherited from class org.apache.storm.topology.base.BaseBasicBolt

cleanup

Methods inherited from class org.apache.storm.topology.base.BaseComponent

getComponentConfiguration

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.storm.topology.IComponent

getComponentConfiguration

Field Details

ARGS_STREAM

public static final String ARGS_STREAM

See Also:

• Constant Field Values

RETURN_STREAM

public static final String RETURN_STREAM

See Also:

• Constant Field Values

ID_STREAM

public static final String ID_STREAM

See Also:

• Constant Field Values

Constructor Details

PrepareRequest

public PrepareRequest()

Method Details

prepare

public void prepare(Map<String,Object> map,
 TopologyContext context)

Specified by:

prepare in interface IBasicBolt

Overrides:

prepare in class BaseBasicBolt

execute

public void execute(Tuple tuple,
 BasicOutputCollector collector)

Description copied from interface: IBasicBolt

Process the input tuple and optionally emit new tuples based on the input tuple.

All acking is managed for you. Throw a FailedException if you want to fail the tuple.

declareOutputFields

public void declareOutputFields(OutputFieldsDeclarer declarer)

Description copied from interface: IComponent

Declare the output schema for all the streams of this topology.

Parameters:

declarer - this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream