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

Class KryoSerializer<T>

java.lang.Object

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

org.apache.flink.api.java.typeutils.runtime.kryo.KryoSerializer<T>

Type Parameters:

T - The type to be serialized.

All Implemented Interfaces:

Serializable

public class KryoSerializer<T>
extends org.apache.flink.api.common.typeutils.TypeSerializer<T>

A type serializer that serializes its type using the Kryo serialization framework (https://github.com/EsotericSoftware/kryo). This serializer is intended as a fallback serializer for the cases that are not covered by the basic types, tuples, and POJOs.

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
	KryoSerializer(Class<T> type, org.apache.flink.api.common.ExecutionConfig executionConfig)
protected	KryoSerializer(KryoSerializer<T> toCopy) Copy-constructor that does not copy transient fields.

Method Summary

Modifier and Type	Method and Description
void	copy(org.apache.flink.core.memory.DataInputView source, org.apache.flink.core.memory.DataOutputView target)
T	copy(T from)
T	copy(T from, T reuse)
T	createInstance()
T	deserialize(org.apache.flink.core.memory.DataInputView source)
T	deserialize(T reuse, org.apache.flink.core.memory.DataInputView source)
KryoSerializer<T>	duplicate()
boolean	equals(Object obj)
com.esotericsoftware.kryo.Kryo	getKryo()
int	getLength()
int	hashCode()
boolean	isImmutableType()
void	serialize(T record, org.apache.flink.core.memory.DataOutputView target)

Methods inherited from class java.lang.Object

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

Constructor Detail

KryoSerializer

public KryoSerializer(Class<T> type,
                      org.apache.flink.api.common.ExecutionConfig executionConfig)

KryoSerializer

protected KryoSerializer(KryoSerializer<T> toCopy)

Copy-constructor that does not copy transient fields. They will be initialized once required.

Method Detail

isImmutableType

public boolean isImmutableType()

Specified by:

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

duplicate

public KryoSerializer<T> duplicate()

Specified by:

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

createInstance

public T createInstance()

Specified by:

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

copy

public T copy(T from)

Specified by:

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

copy

public T copy(T from,
              T reuse)

Specified by:

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

getLength

public int getLength()

Specified by:

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

serialize

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

Specified by:

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

Throws:

IOException

deserialize

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

Specified by:

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

Throws:

IOException

deserialize

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

Specified by:

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

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<T>

Throws:

IOException

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getKryo

public com.esotericsoftware.kryo.Kryo getKryo()