org.apache.beam.sdk.util

Class EmptyOnDeserializationThreadLocal<T>

java.lang.Object

java.lang.ThreadLocal<T>

org.apache.beam.sdk.util.EmptyOnDeserializationThreadLocal<T>

All Implemented Interfaces:

java.io.Serializable

public class EmptyOnDeserializationThreadLocal<T>
extends java.lang.ThreadLocal<T>
implements java.io.Serializable

A Serializable ThreadLocal which discards any "stored" objects. This allows for Kryo to serialize a Coder as a final field.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
EmptyOnDeserializationThreadLocal()

Method Summary

Methods inherited from class java.lang.ThreadLocal

get, initialValue, remove, set, withInitial

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyOnDeserializationThreadLocal

public EmptyOnDeserializationThreadLocal()