Package org.apache.flink.streaming.runtime.streamrecord

Class StreamElementSerializer<T>

java.lang.Object

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

org.apache.flink.streaming.runtime.streamrecord.StreamElementSerializer<T>

Type Parameters:

T - The type of value in the StreamRecord

All Implemented Interfaces:

Serializable

@Internal
public final class StreamElementSerializer<T>
extends org.apache.flink.api.common.typeutils.TypeSerializer<StreamElement>

Serializer for StreamRecord, Watermark, LatencyMarker, and WatermarkStatus.

This does not behave like a normal TypeSerializer, instead, this is only used at the stream task/operator level for transmitting StreamRecords and Watermarks.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	StreamElementSerializer.StreamElementSerializerSnapshot<T>	Configuration snapshot specific to the StreamElementSerializer.

Constructor Summary

Constructors

Constructor	Description
StreamElementSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer)

Method Summary

Modifier and Type	Method	Description
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
StreamElement	copy(StreamElement from)
StreamElement	copy(StreamElement from, StreamElement reuse)
StreamRecord<T>	createInstance()
StreamElement	deserialize(org.apache.flink.core.memory.DataInputView source)
StreamElement	deserialize(StreamElement reuse, org.apache.flink.core.memory.DataInputView source)
StreamElementSerializer<T>	duplicate()
boolean	equals(Object obj)
org.apache.flink.api.common.typeutils.TypeSerializer<T>	getContainedTypeSerializer()
int	getLength()
int	hashCode()
boolean	isImmutableType()
void	serialize(StreamElement value, org.apache.flink.core.memory.DataOutputView target)
StreamElementSerializer.StreamElementSerializerSnapshot<T>	snapshotConfiguration()

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamElementSerializer

public StreamElementSerializer(org.apache.flink.api.common.typeutils.TypeSerializer<T> serializer)

Method Detail

getContainedTypeSerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<T> getContainedTypeSerializer()

isImmutableType

public boolean isImmutableType()

Specified by:

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

duplicate

public StreamElementSerializer<T> duplicate()

Specified by:

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

createInstance

public StreamRecord<T> createInstance()

Specified by:

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

getLength

public int getLength()

Specified by:

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

copy

public StreamElement copy(StreamElement from)

Specified by:

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

copy

public StreamElement copy(StreamElement from,
                          StreamElement reuse)

Specified by:

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

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<StreamElement>

Throws:

IOException

serialize

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

Specified by:

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

Throws:

IOException

deserialize

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

Specified by:

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

Throws:

IOException

deserialize

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

Specified by:

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

Throws:

IOException

equals

public boolean equals(Object obj)

Specified by:

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

hashCode

public int hashCode()

Specified by:

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

snapshotConfiguration

public StreamElementSerializer.StreamElementSerializerSnapshot<T> snapshotConfiguration()

Specified by:

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