org.apache.flink.table.runtime.typeutils.serializers.python

Class TimestampSerializer

java.lang.Object

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

org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton<Timestamp>

org.apache.flink.table.runtime.typeutils.serializers.python.TimestampSerializer

All Implemented Interfaces:

Serializable

@Internal
public class TimestampSerializer
extends org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton<Timestamp>

Uses similar serialization/deserialization of SqlTimestampSerializer in blink to serialize Timestamp. It not only deals with Daylight saving time problem and precision problem, but also makes the serialized value consistent between the legacy planner and the blink planner.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TimestampSerializer.TimestampSerializerSnapshot TypeSerializerSnapshot for TimestampSerializer.

Constructor Summary

Constructors

Constructor and Description
TimestampSerializer(int precision)

Method Summary

Modifier and Type	Method and Description
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
Timestamp	copy(Timestamp from)
Timestamp	copy(Timestamp from, Timestamp reuse)
Timestamp	createInstance()
Timestamp	deserialize(org.apache.flink.core.memory.DataInputView source)
Timestamp	deserialize(Timestamp reuse, org.apache.flink.core.memory.DataInputView source)
int	getLength()
boolean	isImmutableType()
void	serialize(Timestamp record, org.apache.flink.core.memory.DataOutputView target)
org.apache.flink.api.common.typeutils.TypeSerializerSnapshot<Timestamp>	snapshotConfiguration()

Methods inherited from class org.apache.flink.api.common.typeutils.base.TypeSerializerSingleton

duplicate, equals, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

TimestampSerializer

public TimestampSerializer(int precision)

Method Detail

isImmutableType

public boolean isImmutableType()

Specified by:

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

createInstance

public Timestamp createInstance()

Specified by:

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

copy

public Timestamp copy(Timestamp from)

Specified by:

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

copy

public Timestamp copy(Timestamp from,
                      Timestamp reuse)

Specified by:

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

getLength

public int getLength()

Specified by:

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

serialize

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

Specified by:

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

Throws:

IOException

deserialize

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

Specified by:

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

Throws:

IOException

deserialize

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

Specified by:

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

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<Timestamp>

Throws:

IOException

snapshotConfiguration

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

Specified by:

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