Package org.apache.flink.queryablestate.client.state

Class ImmutableValueState<V>

java.lang.Object

org.apache.flink.queryablestate.client.state.ImmutableValueState<V>

All Implemented Interfaces:

org.apache.flink.api.common.state.State, org.apache.flink.api.common.state.ValueState<V>

public final class ImmutableValueState<V>
extends Object
implements org.apache.flink.api.common.state.ValueState<V>

A read-only ValueState that does not allow for modifications.

This is the result returned when querying Flink's keyed state using the Queryable State Client and providing an ValueStateDescriptor.

Field Summary

Fields

Modifier and Type	Field	Description
protected static final UnsupportedOperationException	MODIFICATION_ATTEMPT_ERROR

Method Summary

Modifier and Type	Method	Description
void	clear()
static <V, S extends org.apache.flink.api.common.state.State> S	createState(org.apache.flink.api.common.state.StateDescriptor<S,V> stateDescriptor, byte[] serializedState)
void	update(V newValue)
V	value()

Methods inherited from class java.lang.Object

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

Field Details

MODIFICATION_ATTEMPT_ERROR

protected static final UnsupportedOperationException MODIFICATION_ATTEMPT_ERROR

Method Details

value

public V value()

Specified by:

value in interface org.apache.flink.api.common.state.ValueState<V>

update

public void update(V newValue)

Specified by:

update in interface org.apache.flink.api.common.state.ValueState<V>

clear

public void clear()

Specified by:

clear in interface org.apache.flink.api.common.state.State

createState

public static <V,
S extends org.apache.flink.api.common.state.State>
S createState(org.apache.flink.api.common.state.StateDescriptor<S,V> stateDescriptor,
 byte[] serializedState)
       throws IOException

Throws:

IOException