org.apache.flink.runtime.io.network.api.serialization

Class SpanningRecordSerializer<T extends org.apache.flink.core.io.IOReadableWritable>

java.lang.Object

org.apache.flink.runtime.io.network.api.serialization.SpanningRecordSerializer<T>

Type Parameters:

T - The type of the records that are serialized.

All Implemented Interfaces:

RecordSerializer<T>

public class SpanningRecordSerializer<T extends org.apache.flink.core.io.IOReadableWritable>
extends Object
implements RecordSerializer<T>

Record serializer which serializes the complete record to an intermediate data serialization buffer and copies this buffer to target buffers one-by-one using continueWritingWithNextBufferBuilder(BufferBuilder).

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.runtime.io.network.api.serialization.RecordSerializer

RecordSerializer.SerializationResult

Constructor Summary

Constructors

Constructor and Description
SpanningRecordSerializer()

Method Summary

Modifier and Type	Method and Description
RecordSerializer.SerializationResult	addRecord(T record) Serializes the complete record to an intermediate data serialization buffer and starts copying it to the target buffer (if available).
void	clear() Clear and release internal state.
RecordSerializer.SerializationResult	continueWritingWithNextBufferBuilder(BufferBuilder buffer) Sets a (next) target buffer to use and continues writing remaining data to it until it is full.
boolean	hasSerializedData()

Methods inherited from class java.lang.Object

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

Constructor Detail

SpanningRecordSerializer

public SpanningRecordSerializer()

Method Detail

addRecord

public RecordSerializer.SerializationResult addRecord(T record)
                                               throws IOException

Serializes the complete record to an intermediate data serialization buffer and starts copying it to the target buffer (if available).

Specified by:

addRecord in interface RecordSerializer<T extends org.apache.flink.core.io.IOReadableWritable>

Parameters:

record - the record to serialize

Returns:

how much information was written to the target buffer and whether this buffer is full

Throws:

IOException

continueWritingWithNextBufferBuilder

public RecordSerializer.SerializationResult continueWritingWithNextBufferBuilder(BufferBuilder buffer)
                                                                          throws IOException

Description copied from interface: RecordSerializer

Sets a (next) target buffer to use and continues writing remaining data to it until it is full.

Specified by:

continueWritingWithNextBufferBuilder in interface RecordSerializer<T extends org.apache.flink.core.io.IOReadableWritable>

Parameters:

buffer - the new target buffer to use

Returns:

how much information was written to the target buffer and whether this buffer is full

Throws:

IOException

clear

public void clear()

Description copied from interface: RecordSerializer

Clear and release internal state.

Specified by:

clear in interface RecordSerializer<T extends org.apache.flink.core.io.IOReadableWritable>

hasSerializedData

public boolean hasSerializedData()

Specified by:

hasSerializedData in interface RecordSerializer<T extends org.apache.flink.core.io.IOReadableWritable>

Returns:

true if has some serialized data pending copying to the result BufferBuilder.