org.apache.flink.streaming.api.datastream

类 QueryableStateStream<K,V>

java.lang.Object

org.apache.flink.streaming.api.datastream.QueryableStateStream<K,V>

类型参数:

K - State key type

V - State value type

@PublicEvolving
public class QueryableStateStream<K,V>
extends Object

Queryable state stream instance.

构造器概要

构造器

构造器和说明
QueryableStateStream(String queryableStateName, org.apache.flink.api.common.state.StateDescriptor<?,V> stateDescriptor, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer) Creates a queryable state stream.

方法概要

限定符和类型	方法和说明
org.apache.flink.api.common.typeutils.TypeSerializer<K>	getKeySerializer() Returns the key serializer for the queryable state instance.
String	getQueryableStateName() Returns the name under which the state can be queried.
org.apache.flink.api.common.state.StateDescriptor<?,V>	getStateDescriptor() Returns the state descriptor for the queryable state instance.

从类继承的方法 java.lang.Object

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

构造器详细资料

QueryableStateStream

public QueryableStateStream(String queryableStateName,
                            org.apache.flink.api.common.state.StateDescriptor<?,V> stateDescriptor,
                            org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer)

Creates a queryable state stream.

参数:

queryableStateName - Name under which to publish the queryable state instance

stateDescriptor - The state descriptor for the state instance

keySerializer - Key serializer for the state instance

方法详细资料

getQueryableStateName

public String getQueryableStateName()

Returns the name under which the state can be queried.

返回:

Name under which state can be queried.

getKeySerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<K> getKeySerializer()

Returns the key serializer for the queryable state instance.

返回:

Key serializer for the state instance.

getStateDescriptor

public org.apache.flink.api.common.state.StateDescriptor<?,V> getStateDescriptor()

Returns the state descriptor for the queryable state instance.

返回:

State descriptor for the state instance