org.apache.flink.streaming.runtime.streamrecord

Class MultiplexingStreamRecordSerializer<T>

java.lang.Object

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

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

Type Parameters:

T - The type of value in the StreamRecord

All Implemented Interfaces:

Serializable

public final class MultiplexingStreamRecordSerializer<T>
extends TypeSerializer<StreamElement>

Serializer for StreamRecord and Watermark. This does not behave like a normal TypeSerializer, instead, this is only used at the StreamTask level for transmitting StreamRecords and Watermarks. This serializer can handle both of them, therefore it returns Object the result has to be cast to the correct type.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MultiplexingStreamRecordSerializer(TypeSerializer<T> serializer)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canEqual(Object obj)
void	copy(DataInputView source, DataOutputView target)
StreamElement	copy(StreamElement from)
StreamElement	copy(StreamElement from, StreamElement reuse)
StreamRecord<T>	createInstance()
StreamElement	deserialize(DataInputView source)
StreamElement	deserialize(StreamElement reuse, DataInputView source)
TypeSerializer<StreamElement>	duplicate()
boolean	equals(Object obj)
int	getLength()
int	hashCode()
boolean	isImmutableType()
void	serialize(StreamElement value, DataOutputView target)

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiplexingStreamRecordSerializer

public MultiplexingStreamRecordSerializer(TypeSerializer<T> serializer)

Method Detail

isImmutableType

public boolean isImmutableType()

Specified by:

isImmutableType in class TypeSerializer<StreamElement>

duplicate

public TypeSerializer<StreamElement> duplicate()

Specified by:

duplicate in class TypeSerializer<StreamElement>

createInstance

public StreamRecord<T> createInstance()

Specified by:

createInstance in class TypeSerializer<StreamElement>

copy

public StreamElement copy(StreamElement from)

Specified by:

copy in class TypeSerializer<StreamElement>

copy

public StreamElement copy(StreamElement from,
                 StreamElement reuse)

Specified by:

copy in class TypeSerializer<StreamElement>

getLength

public int getLength()

Specified by:

getLength in class TypeSerializer<StreamElement>

serialize

public void serialize(StreamElement value,
             DataOutputView target)
               throws IOException

Specified by:

serialize in class TypeSerializer<StreamElement>

Throws:

IOException

deserialize

public StreamElement deserialize(DataInputView source)
                          throws IOException

Specified by:

deserialize in class TypeSerializer<StreamElement>

Throws:

IOException

deserialize

public StreamElement deserialize(StreamElement reuse,
                        DataInputView source)
                          throws IOException

Specified by:

deserialize in class TypeSerializer<StreamElement>

Throws:

IOException

copy

public void copy(DataInputView source,
        DataOutputView target)
          throws IOException

Specified by:

copy in class TypeSerializer<StreamElement>

Throws:

IOException

equals

public boolean equals(Object obj)

Specified by:

equals in class TypeSerializer<StreamElement>

canEqual

public boolean canEqual(Object obj)

Specified by:

canEqual in class TypeSerializer<StreamElement>

hashCode

public int hashCode()

Specified by:

hashCode in class TypeSerializer<StreamElement>