com.github.pmerienne.trident.state.redis

Class RedisSetMultiMapState<K,V>

java.lang.Object

com.github.pmerienne.trident.state.redis.AbstractRedisState<V>

com.github.pmerienne.trident.state.redis.RedisSetMultiMapState<K,V>

All Implemented Interfaces:

ExtendedState<V>, SetMultiMapState<K,V>, storm.trident.state.State

public class RedisSetMultiMapState<K,V>
extends AbstractRedisState<V>
implements SetMultiMapState<K,V>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RedisSetMultiMapState.Factory<K,V>

Field Summary

Fields inherited from class com.github.pmerienne.trident.state.redis.AbstractRedisState

config, id, pool, serializer

Constructor Summary

Constructors

Constructor and Description
RedisSetMultiMapState(String id)
RedisSetMultiMapState(String id, RedisConfig config)

Method Summary

Methods

Modifier and Type	Method and Description
void	beginCommit(Long txid)
void	commit(Long txid)
Set<V>	get(K key) Returns a Set view of all values associated with a key.
boolean	put(K key, V value) Stores a key-value pair in the multimap.
long	sizeOf(K key) Returns the numbers of values which are mapped to a given key

Methods inherited from class com.github.pmerienne.trident.state.redis.AbstractRedisState

flushAll, generateKey, generateKey, generateKey

Methods inherited from class java.lang.Object

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

Constructor Detail

RedisSetMultiMapState

public RedisSetMultiMapState(String id)

RedisSetMultiMapState

public RedisSetMultiMapState(String id,
                     RedisConfig config)

Method Detail

beginCommit

public void beginCommit(Long txid)

Specified by:

beginCommit in interface storm.trident.state.State

commit

public void commit(Long txid)

Specified by:

commit in interface storm.trident.state.State

sizeOf

public long sizeOf(K key)

Description copied from interface: SetMultiMapState

Returns the numbers of values which are mapped to a given key

Specified by:

sizeOf in interface SetMultiMapState<K,V>

Returns:

put

public boolean put(K key,
          V value)

Description copied from interface: SetMultiMapState

Stores a key-value pair in the multimap. Storing a key-value pair that's already in the multimap has no effect.

Specified by:

put in interface SetMultiMapState<K,V>

Parameters:

key - key to store

value - value to store

Returns:

true if this changed the state

get

public Set<V> get(K key)

Description copied from interface: SetMultiMapState

Returns a Set view of all values associated with a key. If there's no mappings, an empty Set is returned.

Specified by:

get in interface SetMultiMapState<K,V>

Returns:

the set of values that the key maps to