org.apache.flink.runtime.state

接口 OperatorStateHandle

所有超级接口:

Serializable, StateObject, StreamStateHandle

所有已知实现类:

OperatorStreamStateHandle

public interface OperatorStateHandle
extends StreamStateHandle

Interface of a state handle for operator state.

嵌套类概要

嵌套类

限定符和类型	接口和说明
static class	OperatorStateHandle.Mode The modes that determine how an OperatorStreamStateHandle is assigned to tasks during restore.
static class	OperatorStateHandle.StateMetaInfo Meta information about the operator state handle.

方法概要

限定符和类型	方法和说明
StreamStateHandle	getDelegateStateHandle() Returns the underlying stream state handle that points to the state data.
Map<String,OperatorStateHandle.StateMetaInfo>	getStateNameToPartitionOffsets() Returns a map of meta data for all contained states by their name.
org.apache.flink.core.fs.FSDataInputStream	openInputStream() Returns an input stream to read the operator state information.

从接口继承的方法 org.apache.flink.runtime.state.StreamStateHandle

asBytesIfInMemory

从接口继承的方法 org.apache.flink.runtime.state.StateObject

discardState, getStateSize

方法详细资料

getStateNameToPartitionOffsets

Map<String,OperatorStateHandle.StateMetaInfo> getStateNameToPartitionOffsets()

Returns a map of meta data for all contained states by their name.

openInputStream

org.apache.flink.core.fs.FSDataInputStream openInputStream()
                                                    throws IOException

Returns an input stream to read the operator state information.

指定者:

openInputStream 在接口中 StreamStateHandle

抛出:

IOException

getDelegateStateHandle

StreamStateHandle getDelegateStateHandle()

Returns the underlying stream state handle that points to the state data.