org.apache.flink.table.runtime.typeutils

Class MapDataSerializer

java.lang.Object

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

org.apache.flink.table.runtime.typeutils.MapDataSerializer

All Implemented Interfaces:

Serializable

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

Serializer for MapData.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

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

Constructor Summary

Constructors

Constructor and Description
MapDataSerializer(org.apache.flink.table.types.logical.LogicalType keyType, org.apache.flink.table.types.logical.LogicalType valueType)

Method Summary

Modifier and Type	Method and Description
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
org.apache.flink.table.data.MapData	copy(org.apache.flink.table.data.MapData from) NOTE: Map should be a HashMap, when we insert the key/value pairs of the TreeMap into a HashMap, problems maybe occur.
org.apache.flink.table.data.MapData	copy(org.apache.flink.table.data.MapData from, org.apache.flink.table.data.MapData reuse)
org.apache.flink.table.data.MapData	createInstance()
org.apache.flink.table.data.MapData	deserialize(org.apache.flink.core.memory.DataInputView source)
org.apache.flink.table.data.MapData	deserialize(org.apache.flink.table.data.MapData reuse, org.apache.flink.core.memory.DataInputView source)
org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.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(org.apache.flink.table.data.MapData record, org.apache.flink.core.memory.DataOutputView target)
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<org.apache.flink.table.data.MapData>	snapshotConfiguration()
org.apache.flink.table.data.binary.BinaryMapData	toBinaryMap(org.apache.flink.table.data.MapData from)

Methods inherited from class java.lang.Object

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

Constructor Detail

MapDataSerializer

public MapDataSerializer(org.apache.flink.table.types.logical.LogicalType keyType,
                         org.apache.flink.table.types.logical.LogicalType valueType)

Method Detail

isImmutableType

public boolean isImmutableType()

Specified by:

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

duplicate

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

Specified by:

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

createInstance

public org.apache.flink.table.data.MapData createInstance()

Specified by:

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

copy

public org.apache.flink.table.data.MapData copy(org.apache.flink.table.data.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<org.apache.flink.table.data.MapData>

copy

public org.apache.flink.table.data.MapData copy(org.apache.flink.table.data.MapData from,
                                                org.apache.flink.table.data.MapData reuse)

Specified by:

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

getLength

public int getLength()

Specified by:

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

serialize

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

Specified by:

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

Throws:

IOException

toBinaryMap

public org.apache.flink.table.data.binary.BinaryMapData toBinaryMap(org.apache.flink.table.data.MapData from)

deserialize

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

Specified by:

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

Throws:

IOException

deserialize

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

Specified by:

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

Throws:

IOException

equals

public boolean equals(Object o)

Specified by:

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

hashCode

public int hashCode()

Specified by:

hashCode in class org.apache.flink.api.common.typeutils.TypeSerializer<org.apache.flink.table.data.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<org.apache.flink.table.data.MapData> snapshotConfiguration()

Specified by:

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