org.apache.flink.runtime.state.metainfo

Class LegacyStateMetaInfoReaders.OperatorBackendStateMetaInfoReaderV1

java.lang.Object

org.apache.flink.runtime.state.metainfo.LegacyStateMetaInfoReaders.OperatorBackendStateMetaInfoReaderV1

All Implemented Interfaces:

StateMetaInfoReader

Enclosing class:

LegacyStateMetaInfoReaders

public static class LegacyStateMetaInfoReaders.OperatorBackendStateMetaInfoReaderV1
extends Object
implements StateMetaInfoReader

Reader for older versions of operator state (version 1). - v1: Flink 1.2.x

Constructor Summary

Constructors

Constructor and Description
OperatorBackendStateMetaInfoReaderV1()

Method Summary

Modifier and Type	Method and Description
StateMetaInfoSnapshot	readStateMetaInfoSnapshot(DataInputView in, ClassLoader userCodeClassLoader) Reads a snapshot from the given input view.

Methods inherited from class java.lang.Object

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

Constructor Detail

OperatorBackendStateMetaInfoReaderV1

public OperatorBackendStateMetaInfoReaderV1()

Method Detail

readStateMetaInfoSnapshot

@Nonnull
public StateMetaInfoSnapshot readStateMetaInfoSnapshot(@Nonnull
                                                                DataInputView in,
                                                                @Nonnull
                                                                ClassLoader userCodeClassLoader)
                                                         throws IOException

Description copied from interface: StateMetaInfoReader

Reads a snapshot from the given input view.

Specified by:

readStateMetaInfoSnapshot in interface StateMetaInfoReader

Parameters:

in - the input to read from.

userCodeClassLoader - user classloader to deserialize the objects in the snapshot.

Returns:

the deserialized snapshot.

Throws:

IOException - on deserialization problems.