org.apache.storm.redis.state

Class RedisKeyValueState<K,V>

java.lang.Object

org.apache.storm.redis.state.RedisKeyValueState<K,V>

All Implemented Interfaces:

KeyValueState<K,V>, State

public class RedisKeyValueState<K,V>
extends Object
implements KeyValueState<K,V>

A redis based implementation that persists the state in Redis.

Constructor Summary

Constructors

Constructor and Description
RedisKeyValueState(String namespace)
RedisKeyValueState(String namespace, JedisCommandsInstanceContainer jedisContainer, Serializer<K> keySerializer, Serializer<V> valueSerializer)
RedisKeyValueState(String namespace, JedisPoolConfig poolConfig)
RedisKeyValueState(String namespace, JedisPoolConfig poolConfig, Serializer<K> keySerializer, Serializer<V> valueSerializer)

Method Summary

Modifier and Type	Method and Description
void	commit()
void	commit(long txid)
V	get(K key)
V	get(K key, V defaultValue)
void	prepareCommit(long txid)
void	put(K key, V value)
void	rollback()

Methods inherited from class java.lang.Object

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

Constructor Detail

RedisKeyValueState

public RedisKeyValueState(String namespace)

RedisKeyValueState

public RedisKeyValueState(String namespace,
                          JedisPoolConfig poolConfig)

RedisKeyValueState

public RedisKeyValueState(String namespace,
                          JedisPoolConfig poolConfig,
                          Serializer<K> keySerializer,
                          Serializer<V> valueSerializer)

RedisKeyValueState

public RedisKeyValueState(String namespace,
                          JedisCommandsInstanceContainer jedisContainer,
                          Serializer<K> keySerializer,
                          Serializer<V> valueSerializer)

Method Detail

put

public void put(K key,
                V value)

Specified by:

put in interface KeyValueState<K,V>

get

public V get(K key)

Specified by:

get in interface KeyValueState<K,V>

get

public V get(K key,
             V defaultValue)

Specified by:

get in interface KeyValueState<K,V>

prepareCommit

public void prepareCommit(long txid)

Specified by:

prepareCommit in interface State

commit

public void commit(long txid)

Specified by:

commit in interface State

commit

public void commit()

Specified by:

commit in interface State

rollback

public void rollback()

Specified by:

rollback in interface State