com.google.cloud.dataflow.sdk.util.state

Class StateTable

java.lang.Object

com.google.cloud.dataflow.sdk.util.state.StateTable

public abstract class StateTable
extends Object

Table mapping StateNamespace and StateTag<?> to a State instance.

Constructor Summary

Constructors

Constructor and Description
StateTable()

Method Summary

Modifier and Type	Method and Description
protected abstract StateTag.StateBinder	binderForNamespace(StateNamespace namespace) Provide the StateBinder to use for creating Storage instances in the specified namespace.
protected void	clear()
void	clearNamespace(StateNamespace namespace)
<StateT extends State> StateT	get(StateNamespace namespace, StateTag<StateT> tag)
Set<StateNamespace>	getNamespacesInUse()
Map<StateTag<?>,State>	getTagsInUse(StateNamespace namespace)
boolean	isNamespaceInUse(StateNamespace namespace)
Iterable<State>	values()

Methods inherited from class java.lang.Object

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

Constructor Detail

StateTable

public StateTable()

Method Detail

get

public <StateT extends State> StateT get(StateNamespace namespace,
                                         StateTag<StateT> tag)

clearNamespace

public void clearNamespace(StateNamespace namespace)

clear

protected void clear()

values

public Iterable<State> values()

isNamespaceInUse

public boolean isNamespaceInUse(StateNamespace namespace)

getTagsInUse

public Map<StateTag<?>,State> getTagsInUse(StateNamespace namespace)

getNamespacesInUse

public Set<StateNamespace> getNamespacesInUse()

binderForNamespace

protected abstract StateTag.StateBinder binderForNamespace(StateNamespace namespace)

Provide the StateBinder to use for creating Storage instances in the specified namespace.