org.apache.flink.runtime.query

类 KvStateInfo<K,N,V>

java.lang.Object

org.apache.flink.runtime.query.KvStateInfo<K,N,V>

类型参数:

K - The type of key the state is associated to

N - The type of the namespace the state is associated to

V - The type of values kept internally in state

public class KvStateInfo<K,N,V>
extends Object

Metadata about a InternalKvState. This includes the serializers for the key, the namespace, and the values kept in the state.

构造器概要

构造器

构造器和说明
KvStateInfo(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.typeutils.TypeSerializer<V> stateValueSerializer)

方法概要

限定符和类型	方法和说明
KvStateInfo<K,N,V>	duplicate() Creates a deep copy of the current KvStateInfo by duplicating all the included serializers.
boolean	equals(Object o)
org.apache.flink.api.common.typeutils.TypeSerializer<K>	getKeySerializer()
org.apache.flink.api.common.typeutils.TypeSerializer<N>	getNamespaceSerializer()
org.apache.flink.api.common.typeutils.TypeSerializer<V>	getStateValueSerializer()
int	hashCode()

从类继承的方法 java.lang.Object

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

构造器详细资料

KvStateInfo

public KvStateInfo(org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                   org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                   org.apache.flink.api.common.typeutils.TypeSerializer<V> stateValueSerializer)

方法详细资料

getKeySerializer

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

返回:

The serializer for the key the state is associated to.

getNamespaceSerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<N> getNamespaceSerializer()

返回:

The serializer for the namespace the state is associated to.

getStateValueSerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<V> getStateValueSerializer()

返回:

The serializer for the values kept in the state.

duplicate

public KvStateInfo<K,N,V> duplicate()

Creates a deep copy of the current KvStateInfo by duplicating all the included serializers.

This method assumes correct implementation of the TypeSerializer.duplicate() method of the included serializers.

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object