org.apache.flink.table.runtime.typeutils

类 MapDataSerializer

java.lang.Object

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

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

所有已实现的接口:

Serializable

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

Serializer for MapData.

另请参阅:

序列化表格

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	MapDataSerializer.MapDataSerializerSnapshot TypeSerializerSnapshot for ArrayDataSerializer.

构造器概要

构造器

构造器和说明
MapDataSerializer(org.apache.flink.table.types.logical.LogicalType keyType, org.apache.flink.table.types.logical.LogicalType valueType, org.apache.flink.api.common.ExecutionConfig conf)

方法概要

限定符和类型	方法和说明
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)

从类继承的方法 java.lang.Object

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

构造器详细资料

MapDataSerializer

public MapDataSerializer(org.apache.flink.table.types.logical.LogicalType keyType,
                         org.apache.flink.table.types.logical.LogicalType valueType,
                         org.apache.flink.api.common.ExecutionConfig conf)

方法详细资料

isImmutableType

public boolean isImmutableType()

指定者:

isImmutableType 在类中 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()

指定者:

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

createInstance

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

指定者:

createInstance 在类中 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.

指定者:

copy 在类中 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)

指定者:

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

getLength

public int getLength()

指定者:

getLength 在类中 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

指定者:

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

抛出:

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

指定者:

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

抛出:

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

指定者:

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

抛出:

IOException

copy

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

指定者:

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

抛出:

IOException

equals

public boolean equals(Object o)

指定者:

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

hashCode

public int hashCode()

指定者:

hashCode 在类中 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()

指定者:

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