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

Class KryoSerializer<T>

java.lang.Object

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

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

Type Parameters:

T - The type to be serialized.

All Implemented Interfaces:

Serializable

public class KryoSerializer<T>
extends 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

Nested Class Summary

Nested Classes

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

Constructor Summary

Constructors

Constructor and Description
KryoSerializer(Class<T> type)

Method Summary

Methods

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

Method Detail

isImmutableType

public boolean isImmutableType()

Specified by:

isImmutableType in class TypeSerializer<T>

duplicate

public KryoSerializer<T> duplicate()

Specified by:

duplicate in class TypeSerializer<T>

createInstance

public T createInstance()

Specified by:

createInstance in class TypeSerializer<T>

copy

public T copy(T from)

Specified by:

copy in class TypeSerializer<T>

copy

public T copy(T from,
     T reuse)

Specified by:

copy in class TypeSerializer<T>

getLength

public int getLength()

Specified by:

getLength in class TypeSerializer<T>

serialize

public void serialize(T record,
             DataOutputView target)
               throws IOException

Specified by:

serialize in class TypeSerializer<T>

Throws:

IOException

deserialize

public T deserialize(DataInputView source)
              throws IOException

Specified by:

deserialize in class TypeSerializer<T>

Throws:

IOException

deserialize

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

Specified by:

deserialize in class TypeSerializer<T>

Throws:

IOException

copy

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

Specified by:

copy in class TypeSerializer<T>

Throws:

IOException

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object