org.apache.flink.api.common.typeutils

Class CompositeTypeSerializerConfigSnapshot

java.lang.Object

org.apache.flink.core.io.VersionedIOReadableWritable

org.apache.flink.api.common.typeutils.TypeSerializerConfigSnapshot

org.apache.flink.api.common.typeutils.CompositeTypeSerializerConfigSnapshot

All Implemented Interfaces:

IOReadableWritable, Versioned

Direct Known Subclasses:

CollectionSerializerConfigSnapshot, CompositeSerializer.ConfigSnapshot, EitherSerializerConfigSnapshot, GenericArraySerializerConfigSnapshot, MapSerializerConfigSnapshot, RowSerializer.RowSerializerConfigSnapshot, TupleSerializerConfigSnapshot

@Internal
public abstract class CompositeTypeSerializerConfigSnapshot
extends TypeSerializerConfigSnapshot

A TypeSerializerConfigSnapshot for serializers that has multiple nested serializers. The configuration snapshot consists of the configuration snapshots of all nested serializers, and also the nested serializers themselves.

Both the nested serializers and the configuration snapshots are written as configuration of composite serializers, so that on restore, the previous serializer may be used in case migration is required.

Constructor Summary

Constructors

Constructor and Description
CompositeTypeSerializerConfigSnapshot() This empty nullary constructor is required for deserializing the configuration.
CompositeTypeSerializerConfigSnapshot(TypeSerializer<?>... nestedSerializers)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
List<Tuple2<TypeSerializer<?>,TypeSerializerConfigSnapshot>>	getNestedSerializersAndConfigs()
Tuple2<TypeSerializer<?>,TypeSerializerConfigSnapshot>	getSingleNestedSerializerAndConfig()
int	hashCode()
void	read(DataInputView in) Reads the object's internal data from the given data input view.
void	write(DataOutputView out) Writes the object's internal data to the given data output view.

Methods inherited from class org.apache.flink.api.common.typeutils.TypeSerializerConfigSnapshot

getUserCodeClassLoader, setUserCodeClassLoader

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

getCompatibleVersions, getReadVersion

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.core.io.Versioned

getVersion

Constructor Detail

CompositeTypeSerializerConfigSnapshot

public CompositeTypeSerializerConfigSnapshot()

This empty nullary constructor is required for deserializing the configuration.

CompositeTypeSerializerConfigSnapshot

public CompositeTypeSerializerConfigSnapshot(TypeSerializer<?>... nestedSerializers)

Method Detail

write

public void write(DataOutputView out)
           throws IOException

Description copied from interface: IOReadableWritable

Writes the object's internal data to the given data output view.

Specified by:

write in interface IOReadableWritable

Overrides:

write in class VersionedIOReadableWritable

Parameters:

out - the output view to receive the data.

Throws:

IOException - thrown if any error occurs while writing to the output stream

read

public void read(DataInputView in)
          throws IOException

Description copied from interface: IOReadableWritable

Reads the object's internal data from the given data input view.

Specified by:

read in interface IOReadableWritable

Overrides:

read in class VersionedIOReadableWritable

Parameters:

in - the input view to read the data from

Throws:

IOException - thrown if any error occurs while reading from the input stream

getNestedSerializersAndConfigs

public List<Tuple2<TypeSerializer<?>,TypeSerializerConfigSnapshot>> getNestedSerializersAndConfigs()

getSingleNestedSerializerAndConfig

public Tuple2<TypeSerializer<?>,TypeSerializerConfigSnapshot> getSingleNestedSerializerAndConfig()

equals

public boolean equals(Object obj)

Specified by:

equals in class TypeSerializerConfigSnapshot

hashCode

public int hashCode()

Specified by:

hashCode in class TypeSerializerConfigSnapshot