RedisLookupBolt (Storm 2.7.1 API)

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

All Methods Instance Methods Concrete Methods
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 Detail
  - 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 Detail
  - 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