Uses of Interface
org.apache.storm.state.State

Packages that use State

Package	Description
org.apache.storm.redis.state
org.apache.storm.state
org.apache.storm.topology
org.apache.storm.topology.base

Uses of State in org.apache.storm.redis.state

Classes in org.apache.storm.redis.state that implement State

Modifier and Type	Class	Description
class	RedisKeyValueState<K,V>	A redis based implementation that persists the state in Redis.

Methods in org.apache.storm.redis.state that return State

Modifier and Type	Method	Description
State	RedisKeyValueStateProvider.newState(String namespace, Map<String,Object> topoConf, TopologyContext context)

Uses of State in org.apache.storm.state

Subinterfaces of State in org.apache.storm.state

Modifier and Type	Interface	Description
interface	KeyValueState<K,V>	A state that supports key-value mappings.

Classes in org.apache.storm.state that implement State

Modifier and Type	Class	Description
class	InMemoryKeyValueState<K,V>	An in-memory implementation of the State.

Methods in org.apache.storm.state that return State

Modifier and Type	Method	Description
static State	StateFactory.getState(String namespace, Map<String,Object> topoConf, TopologyContext context)	Returns a new state instance using the Config.TOPOLOGY_STATE_PROVIDER or a InMemoryKeyValueState if no provider is configured.
State	InMemoryKeyValueStateProvider.newState(String namespace, Map<String,Object> topoConf, TopologyContext context)
State	StateProvider.newState(String namespace, Map<String,Object> topoConf, TopologyContext context)	Returns a new state instance.

Uses of State in org.apache.storm.topology

Classes in org.apache.storm.topology with type parameters of type State

Modifier and Type	Interface	Description
interface	IStatefulBolt<T extends State>	A bolt abstraction for supporting stateful computation.
interface	IStatefulComponent<T extends State>	Common methods for stateful components in the topology.
interface	IStatefulWindowedBolt<T extends State>	A windowed bolt abstraction for supporting windowing operation with state.
class	PersistentWindowedBoltExecutor<T extends State>	Wraps a IStatefulWindowedBolt and handles the execution.
class	StatefulBoltExecutor<T extends State>	Wraps a IStatefulBolt and manages the state of the bolt.
class	StatefulWindowedBoltExecutor<T extends State>	Wraps a IStatefulWindowedBolt and handles the execution.

Methods in org.apache.storm.topology with type parameters of type State

Modifier and Type	Method	Description
<T extends State> BoltDeclarer	TopologyBuilder.setBolt(String id, IStatefulBolt<T> bolt)	Define a new bolt in this topology.
<T extends State> BoltDeclarer	TopologyBuilder.setBolt(String id, IStatefulBolt<T> bolt, Number parallelismHint)	Define a new bolt in this topology.
<T extends State> BoltDeclarer	TopologyBuilder.setBolt(String id, IStatefulWindowedBolt<T> bolt)	Define a new bolt in this topology.
<T extends State> BoltDeclarer	TopologyBuilder.setBolt(String id, IStatefulWindowedBolt<T> bolt, Number parallelismHint)	Define a new bolt in this topology.

Uses of State in org.apache.storm.topology.base

Classes in org.apache.storm.topology.base with type parameters of type State

Modifier and Type	Class	Description
class	BaseStatefulBolt<T extends State>
class	BaseStatefulWindowedBolt<T extends State>