org.apache.flink.api.java.typeutils.runtime.kryo

Class Serializers

java.lang.Object

org.apache.flink.api.java.typeutils.runtime.kryo.Serializers

public class Serializers
extends Object

Class containing utilities for the serializers of the Flink Runtime. Most of the serializers are automatically added to the system. Note that users can also implement the KryoSerializable interface to provide custom serialization for their classes. Also, there is a Java Annotation for adding a default serializer (@DefaultSerializer) to classes.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Serializers.AvroSchemaSerializer Slow serialization approach for Avro schemas.
static class	Serializers.SpecificInstanceCollectionSerializer<T extends Collection> Special serializer for Java collections enforcing certain instance types.
static class	Serializers.SpecificInstanceCollectionSerializerForArrayList

Constructor Summary

Constructors

Constructor and Description
Serializers()

Method Summary

Modifier and Type	Method and Description
static void	addSerializerForType(org.apache.flink.api.common.ExecutionConfig reg, Class<?> type)
static void	recursivelyRegisterType(Class<?> type, org.apache.flink.api.common.ExecutionConfig config)
static void	registerGenericAvro(org.apache.flink.api.common.ExecutionConfig reg) Register these serializers for using Avro's GenericData.Record and classes implementing SpecificRecordBase
static void	registerJavaUtils(org.apache.flink.api.common.ExecutionConfig reg) Register less frequently used serializers
static void	registerJodaTime(org.apache.flink.api.common.ExecutionConfig reg) Currently, the following classes of JodaTime are supported: - DateTime - Interval The following chronologies are supported: (see JodaDateTimeSerializer) org.joda.time.chrono.ISOChronology org.joda.time.chrono.CopticChronology org.joda.time.chrono.EthiopicChronology org.joda.time.chrono.GregorianChronology org.joda.time.chrono.JulianChronology org.joda.time.chrono.IslamicChronology org.joda.time.chrono.BuddhistChronology org.joda.time.chrono.GJChronology
static void	registerSpecificAvro(org.apache.flink.api.common.ExecutionConfig reg, Class<? extends org.apache.avro.specific.SpecificRecordBase> avroType)

Methods inherited from class java.lang.Object

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

Constructor Detail

Serializers

public Serializers()

Method Detail

recursivelyRegisterType

public static void recursivelyRegisterType(Class<?> type,
                                           org.apache.flink.api.common.ExecutionConfig config)

addSerializerForType

public static void addSerializerForType(org.apache.flink.api.common.ExecutionConfig reg,
                                        Class<?> type)

registerGenericAvro

public static void registerGenericAvro(org.apache.flink.api.common.ExecutionConfig reg)

Register these serializers for using Avro's GenericData.Record and classes implementing SpecificRecordBase

registerSpecificAvro

public static void registerSpecificAvro(org.apache.flink.api.common.ExecutionConfig reg,
                                        Class<? extends org.apache.avro.specific.SpecificRecordBase> avroType)

registerJodaTime

public static void registerJodaTime(org.apache.flink.api.common.ExecutionConfig reg)

Currently, the following classes of JodaTime are supported: - DateTime - Interval The following chronologies are supported: (see JodaDateTimeSerializer)

• org.joda.time.chrono.ISOChronology
• org.joda.time.chrono.CopticChronology
• org.joda.time.chrono.EthiopicChronology
• org.joda.time.chrono.GregorianChronology
• org.joda.time.chrono.JulianChronology
• org.joda.time.chrono.IslamicChronology
• org.joda.time.chrono.BuddhistChronology
• org.joda.time.chrono.GJChronology

registerJavaUtils

public static void registerJavaUtils(org.apache.flink.api.common.ExecutionConfig reg)

Register less frequently used serializers