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

Class KryoUtils

java.lang.Object

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

@Internal
public class KryoUtils
extends Object

Convenience methods for Kryo

Constructor Summary

Constructors

Constructor and Description
KryoUtils()

Method Summary

Modifier and Type	Method and Description
static <T> T	copy(T from, com.esotericsoftware.kryo.Kryo kryo, TypeSerializer<T> serializer) Tries to copy the given record from using the provided Kryo instance.
static <T> T	copy(T from, T reuse, com.esotericsoftware.kryo.Kryo kryo, TypeSerializer<T> serializer) Tries to copy the given record from using the provided Kryo instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

KryoUtils

public KryoUtils()

Method Detail

copy

public static <T> T copy(T from,
                         com.esotericsoftware.kryo.Kryo kryo,
                         TypeSerializer<T> serializer)

Tries to copy the given record from using the provided Kryo instance. If this fails, then the record from is copied by serializing it into a byte buffer and deserializing it from there.

Type Parameters:

T - Type of the element to be copied

Parameters:

from - Element to copy

kryo - Kryo instance to use

serializer - TypeSerializer which is used in case of a Kryo failure

Returns:

Copied element

copy

public static <T> T copy(T from,
                         T reuse,
                         com.esotericsoftware.kryo.Kryo kryo,
                         TypeSerializer<T> serializer)

Tries to copy the given record from using the provided Kryo instance. If this fails, then the record from is copied by serializing it into a byte buffer and deserializing it from there.

Type Parameters:

T - Type of the element to be copied

Parameters:

from - Element to copy

reuse - Reuse element for the deserialization

kryo - Kryo instance to use

serializer - TypeSerializer which is used in case of a Kryo failure

Returns:

Copied element