Package org.apache.storm.state

Class StateFactory

java.lang.Object

org.apache.storm.state.StateFactory

public class StateFactory
extends Object

A factory for creating State instances.

Constructor Summary

Constructors

Constructor	Description
StateFactory()

Method Summary

Modifier and Type	Method	Description
static State	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.

Methods inherited from class java.lang.Object

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

Constructor Detail

StateFactory

public StateFactory()

Method Detail

getState

public static State 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.

Parameters:

namespace - the state namespace

topoConf - the storm conf

context - the topology context

Returns:

the state instance