Package org.apache.flink.cdc.runtime.serializer.data

Class MapDataSerializer

java.lang.Object

org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

org.apache.flink.cdc.runtime.serializer.data.MapDataSerializer

All Implemented Interfaces:

Serializable

@Internal
public class MapDataSerializer
extends org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

Serializer for MapData.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MapDataSerializer.MapDataSerializerSnapshot	TypeSerializerSnapshot for MapDataSerializer.

Constructor Summary

Constructors

Constructor	Description
MapDataSerializer(DataType keyType, DataType valueType)

Method Summary

Modifier and Type	Method	Description
MapData	copy(MapData from)	NOTE: Map should be a HashMap, when we insert the key/value pairs of the TreeMap into a HashMap, problems maybe occur.
MapData	copy(MapData from, MapData reuse)
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
MapData	createInstance()
MapData	deserialize(MapData reuse, org.apache.flink.core.memory.DataInputView source)
MapData	deserialize(org.apache.flink.core.memory.DataInputView source)
org.apache.flink.api.common.typeutils.TypeSerializer<MapData>	duplicate()
boolean	equals(Object o)
org.apache.flink.api.common.typeutils.TypeSerializer	getKeySerializer()
int	getLength()
org.apache.flink.api.common.typeutils.TypeSerializer	getValueSerializer()
int	hashCode()
boolean	isImmutableType()
void	serialize(MapData record, org.apache.flink.core.memory.DataOutputView target)
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<MapData>	snapshotConfiguration()
BinaryMapData	toBinaryMap(MapData from)

Methods inherited from class java.lang.Object

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

Constructor Detail

MapDataSerializer

public MapDataSerializer(DataType keyType,
                         DataType valueType)

Method Detail

isImmutableType

public boolean isImmutableType()

Specified by:

isImmutableType in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

duplicate

public org.apache.flink.api.common.typeutils.TypeSerializer<MapData> duplicate()

Specified by:

duplicate in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

createInstance

public MapData createInstance()

Specified by:

createInstance in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

copy

public MapData copy(MapData from)

NOTE: Map should be a HashMap, when we insert the key/value pairs of the TreeMap into a HashMap, problems maybe occur.

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

copy

public MapData copy(MapData from,
                    MapData reuse)

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

getLength

public int getLength()

Specified by:

getLength in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

serialize

public void serialize(MapData record,
                      org.apache.flink.core.memory.DataOutputView target)
               throws IOException

Specified by:

serialize in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

Throws:

IOException

toBinaryMap

public BinaryMapData toBinaryMap(MapData from)

deserialize

public MapData deserialize(org.apache.flink.core.memory.DataInputView source)
                    throws IOException

Specified by:

deserialize in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

Throws:

IOException

deserialize

public MapData deserialize(MapData reuse,
                           org.apache.flink.core.memory.DataInputView source)
                    throws IOException

Specified by:

deserialize in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

Throws:

IOException

copy

public void copy(org.apache.flink.core.memory.DataInputView source,
                 org.apache.flink.core.memory.DataOutputView target)
          throws IOException

Specified by:

copy in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

Throws:

IOException

equals

public boolean equals(Object o)

Specified by:

equals in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

hashCode

public int hashCode()

Specified by:

hashCode in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>

getKeySerializer

@VisibleForTesting
public org.apache.flink.api.common.typeutils.TypeSerializer getKeySerializer()

getValueSerializer

@VisibleForTesting
public org.apache.flink.api.common.typeutils.TypeSerializer getValueSerializer()

snapshotConfiguration

public org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<MapData> snapshotConfiguration()

Specified by:

snapshotConfiguration in class org.apache.flink.api.common.typeutils.TypeSerializer<MapData>