org.apache.flink.api.common.typeutils.base

Class MapSerializerSnapshot<K,V>

java.lang.Object

org.apache.flink.api.common.typeutils.CompositeTypeSerializerSnapshot<Map<K,V>,MapSerializer<K,V>>

org.apache.flink.api.common.typeutils.base.MapSerializerSnapshot<K,V>

All Implemented Interfaces:

TypeSerializerSnapshot<Map<K,V>>

public class MapSerializerSnapshot<K,V>
extends CompositeTypeSerializerSnapshot<Map<K,V>,MapSerializer<K,V>>

Snapshot class for the MapSerializer.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.api.common.typeutils.CompositeTypeSerializerSnapshot

CompositeTypeSerializerSnapshot.OuterSchemaCompatibility

Constructor Summary

Constructors

Constructor and Description
MapSerializerSnapshot() Constructor for read instantiation.
MapSerializerSnapshot(MapSerializer<K,V> mapSerializer) Constructor to create the snapshot for writing.

Method Summary

Modifier and Type	Method and Description
protected MapSerializer<K,V>	createOuterSerializerWithNestedSerializers(TypeSerializer<?>[] nestedSerializers) Creates an instance of the outer serializer with a given array of its nested serializers.
int	getCurrentOuterSnapshotVersion() Returns the version of the current outer snapshot's written binary format.
TypeSerializerSnapshot<K>	getKeySerializerSnapshot()
protected TypeSerializer<?>[]	getNestedSerializers(MapSerializer<K,V> outerSerializer) Gets the nested serializers from the outer serializer.

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

getCurrentVersion, getNestedSerializerSnapshots, isOuterSnapshotCompatible, readOuterSnapshot, readSnapshot, resolveOuterSchemaCompatibility, resolveSchemaCompatibility, restoreSerializer, writeOuterSnapshot, writeSnapshot

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.api.common.typeutils.TypeSerializerSnapshot

readVersionedSnapshot, writeVersionedSnapshot

Constructor Detail

MapSerializerSnapshot

public MapSerializerSnapshot()

Constructor for read instantiation.

MapSerializerSnapshot

public MapSerializerSnapshot(MapSerializer<K,V> mapSerializer)

Constructor to create the snapshot for writing.

Method Detail

getCurrentOuterSnapshotVersion

public int getCurrentOuterSnapshotVersion()

Description copied from class: CompositeTypeSerializerSnapshot

Returns the version of the current outer snapshot's written binary format.

Specified by:

getCurrentOuterSnapshotVersion in class CompositeTypeSerializerSnapshot<Map<K,V>,MapSerializer<K,V>>

Returns:

the version of the current outer snapshot's written binary format.

createOuterSerializerWithNestedSerializers

protected MapSerializer<K,V> createOuterSerializerWithNestedSerializers(TypeSerializer<?>[] nestedSerializers)

Description copied from class: CompositeTypeSerializerSnapshot

Creates an instance of the outer serializer with a given array of its nested serializers.

Specified by:

createOuterSerializerWithNestedSerializers in class CompositeTypeSerializerSnapshot<Map<K,V>,MapSerializer<K,V>>

Parameters:

nestedSerializers - array of nested serializers to create the outer serializer with.

Returns:

an instance of the outer serializer.

getNestedSerializers

protected TypeSerializer<?>[] getNestedSerializers(MapSerializer<K,V> outerSerializer)

Description copied from class: CompositeTypeSerializerSnapshot

Gets the nested serializers from the outer serializer.

Specified by:

getNestedSerializers in class CompositeTypeSerializerSnapshot<Map<K,V>,MapSerializer<K,V>>

Parameters:

outerSerializer - the outer serializer.

Returns:

the nested serializers.

getKeySerializerSnapshot

public TypeSerializerSnapshot<K> getKeySerializerSnapshot()