Package org.apache.storm.redis.bolt

Class RedisLookupBolt

java.lang.Object

org.apache.storm.topology.base.BaseComponent

org.apache.storm.topology.base.BaseRichBolt

org.apache.storm.topology.base.BaseTickTupleAwareRichBolt

org.apache.storm.redis.bolt.AbstractRedisBolt

org.apache.storm.redis.bolt.RedisLookupBolt

All Implemented Interfaces:

Serializable, IBolt, IComponent, IRichBolt

public class RedisLookupBolt
extends AbstractRedisBolt

Basic bolt for querying from Redis and emits response as tuple.

Various data types are supported: STRING, LIST, HASH, SET, SORTED_SET, HYPER_LOG_LOG, GEO

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.apache.storm.redis.bolt.AbstractRedisBolt

collector

Constructor Summary

Constructors

Constructor	Description
RedisLookupBolt(JedisClusterConfig config, RedisLookupMapper lookupMapper)	Constructor for Redis Cluster environment (JedisCluster).
RedisLookupBolt(JedisPoolConfig config, RedisLookupMapper lookupMapper)	Constructor for single Redis environment (JedisPool).

Method Summary

Modifier and Type	Method	Description
void	declareOutputFields(OutputFieldsDeclarer declarer)	Declare the output schema for all the streams of this topology.
void	process(Tuple input)	Process a single non-tick tuple of input.

Methods inherited from class org.apache.storm.redis.bolt.AbstractRedisBolt

cleanup, getInstance, prepare

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

execute, onTickTuple

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

Constructor Details

RedisLookupBolt

public RedisLookupBolt(JedisPoolConfig config,
 RedisLookupMapper lookupMapper)

Constructor for single Redis environment (JedisPool).

Parameters:

config - configuration for initializing JedisPool

lookupMapper - mapper containing which datatype, query key, output key that Bolt uses

RedisLookupBolt

public RedisLookupBolt(JedisClusterConfig config,
 RedisLookupMapper lookupMapper)

Constructor for Redis Cluster environment (JedisCluster).

Parameters:

config - configuration for initializing JedisCluster

lookupMapper - mapper containing which datatype, query key, output key that Bolt uses

Method Details

process

public void process(Tuple input)

Process a single non-tick tuple of input. Implementation needs to handle ack manually. More details on IBolt.execute(Tuple).

Specified by:

process in class BaseTickTupleAwareRichBolt

Parameters:

input - The input tuple to be processed.

declareOutputFields

public void declareOutputFields(OutputFieldsDeclarer declarer)

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