org.apache.flink.runtime.state

Class OperatorBackendSerializationProxy

java.lang.Object

org.apache.flink.core.io.VersionedIOReadableWritable

org.apache.flink.runtime.state.OperatorBackendSerializationProxy

All Implemented Interfaces:

org.apache.flink.core.io.IOReadableWritable, org.apache.flink.core.io.Versioned

public class OperatorBackendSerializationProxy
extends org.apache.flink.core.io.VersionedIOReadableWritable

Serialization proxy for all meta data in operator state backends. In the future we might also requiresMigration the actual state serialization logic here.

Field Summary

Fields

Modifier and Type	Field and Description
static int	VERSION

Constructor Summary

Constructors

Constructor and Description
OperatorBackendSerializationProxy(ClassLoader userCodeClassLoader)
OperatorBackendSerializationProxy(List<RegisteredOperatorBackendStateMetaInfo.Snapshot<?>> stateMetaInfoSnapshots)

Method Summary

Modifier and Type	Method and Description
int[]	getCompatibleVersions()
List<RegisteredOperatorBackendStateMetaInfo.Snapshot<?>>	getStateMetaInfoSnapshots()
int	getVersion()
void	read(org.apache.flink.core.memory.DataInputView in)
void	write(org.apache.flink.core.memory.DataOutputView out)

Methods inherited from class org.apache.flink.core.io.VersionedIOReadableWritable

getReadVersion

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final int VERSION

See Also:

Constant Field Values

Constructor Detail

OperatorBackendSerializationProxy

public OperatorBackendSerializationProxy(ClassLoader userCodeClassLoader)

OperatorBackendSerializationProxy

public OperatorBackendSerializationProxy(List<RegisteredOperatorBackendStateMetaInfo.Snapshot<?>> stateMetaInfoSnapshots)

Method Detail

getVersion

public int getVersion()

getCompatibleVersions

public int[] getCompatibleVersions()

Overrides:

getCompatibleVersions in class org.apache.flink.core.io.VersionedIOReadableWritable

write

public void write(org.apache.flink.core.memory.DataOutputView out)
           throws IOException

Specified by:

write in interface org.apache.flink.core.io.IOReadableWritable

Overrides:

write in class org.apache.flink.core.io.VersionedIOReadableWritable

Throws:

IOException

read

public void read(org.apache.flink.core.memory.DataInputView in)
          throws IOException

Specified by:

read in interface org.apache.flink.core.io.IOReadableWritable

Overrides:

read in class org.apache.flink.core.io.VersionedIOReadableWritable

Throws:

IOException

getStateMetaInfoSnapshots

public List<RegisteredOperatorBackendStateMetaInfo.Snapshot<?>> getStateMetaInfoSnapshots()