Package org.apache.flink.runtime.state.metainfo

Class StateMetaInfoSnapshotReadersWriters

java.lang.Object

org.apache.flink.runtime.state.metainfo.StateMetaInfoSnapshotReadersWriters

public class StateMetaInfoSnapshotReadersWriters
extends Object

Static factory that gives out the write and readers for different versions of StateMetaInfoSnapshot.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CURRENT_STATE_META_INFO_SNAPSHOT_VERSION	Current version for the serialization format of StateMetaInfoSnapshotReadersWriters.

Method Summary

Modifier and Type	Method	Description
static StateMetaInfoReader	getReader(int readVersion)	Returns a reader for StateMetaInfoSnapshot with the requested state type and version number.
static StateMetaInfoWriter	getWriter()	Returns the writer for StateMetaInfoSnapshot.

Methods inherited from class java.lang.Object

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

Field Details

CURRENT_STATE_META_INFO_SNAPSHOT_VERSION

public static final int CURRENT_STATE_META_INFO_SNAPSHOT_VERSION

Current version for the serialization format of StateMetaInfoSnapshotReadersWriters. - v6: since Flink 1.7.x

See Also:

• Constant Field Values

Method Details

getWriter

@Nonnull
public static StateMetaInfoWriter getWriter()

Returns the writer for StateMetaInfoSnapshot.

getReader

@Nonnull
public static StateMetaInfoReader getReader(int readVersion)

Returns a reader for StateMetaInfoSnapshot with the requested state type and version number.

Parameters:

readVersion - the format version to read.

Returns:

the requested reader.