接口的使用
org.apache.flink.runtime.state.KeyedStateBackend

使用KeyedStateBackend的程序包

程序包	说明
org.apache.flink.runtime.state
org.apache.flink.runtime.state.heap	This package contains the classes for key/value state backends that store the state on the JVM heap as objects.
org.apache.flink.runtime.state.ttl

org.apache.flink.runtime.state中KeyedStateBackend的使用

org.apache.flink.runtime.state中KeyedStateBackend的子接口

限定符和类型	接口和说明
interface	CheckpointableKeyedStateBackend<K> Interface that combines both, the KeyedStateBackend interface, which encapsulates methods responsible for keyed state management and the Snapshotable which tells the system how to snapshot the underlying state.
interface	TestableKeyedStateBackend<K> A keyed state backend interface for internal testing purpose.

实现KeyedStateBackend的org.apache.flink.runtime.state中的类

限定符和类型	类和说明
class	AbstractKeyedStateBackend<K> Base implementation of KeyedStateBackend.

声明为KeyedStateBackend的org.apache.flink.runtime.state中的字段

限定符和类型	字段和说明
protected KeyedStateBackend<?>	DefaultKeyedStateStore.keyedStateBackend

返回KeyedStateBackend的org.apache.flink.runtime.state中的方法

限定符和类型	方法和说明
default KeyedStateBackend<K>	TestableKeyedStateBackend.getDelegatedKeyedStateBackend(boolean recursive)

参数类型为KeyedStateBackend的org.apache.flink.runtime.state中的构造器

构造器和说明
DefaultKeyedStateStore(KeyedStateBackend<?> keyedStateBackend, org.apache.flink.api.common.ExecutionConfig executionConfig)

org.apache.flink.runtime.state.heap中KeyedStateBackend的使用

实现KeyedStateBackend的org.apache.flink.runtime.state.heap中的类

限定符和类型	类和说明
class	HeapKeyedStateBackend<K> A AbstractKeyedStateBackend that keeps state on the Java Heap and will serialize state to streams provided by a CheckpointStreamFactory upon checkpointing.

org.apache.flink.runtime.state.ttl中KeyedStateBackend的使用

参数类型为KeyedStateBackend的org.apache.flink.runtime.state.ttl中的方法

限定符和类型	方法和说明
static <K,N,SV,TTLSV,S extends org.apache.flink.api.common.state.State,IS extends S> IS	TtlStateFactory.createStateAndWrapWithTtlIfEnabled(org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.state.StateDescriptor<S,SV> stateDesc, KeyedStateBackend<K> stateBackend, TtlTimeProvider timeProvider)