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From "Tzu-Li (Gordon) Tai (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-6191) Make non-primitive, internal built-in serializers reconfigurable
Date Mon, 27 Mar 2017 06:01:41 GMT
Tzu-Li (Gordon) Tai created FLINK-6191:
------------------------------------------

             Summary: Make non-primitive, internal built-in serializers reconfigurable
                 Key: FLINK-6191
                 URL: https://issues.apache.org/jira/browse/FLINK-6191
             Project: Flink
          Issue Type: Sub-task
          Components: Type Serialization System
            Reporter: Tzu-Li (Gordon) Tai
            Assignee: Tzu-Li (Gordon) Tai


This sub-task follows after FLINK-6190.

For non-primitive type serializers internally created by Flink, we need to allow them to be
reconfigurable whenever we detect a change between the previous and current serializer configuration.

Most notably, this is relevant for the `KryoSerializer` and `PojoSerializer` which are affected
by the configuration, as well as composite types which can potentially have nested serializers
(e.g. `GenericArraySerializer`).

Since not all serializers require / reconfiguration, we propose to have a extended abstract
base class for these:

{code}
@Internal
public abstract class ReconfigurableTypeSerializer<T> extends TypeSerializer<T>
{

    void abstract reconfigure(SerializersConfig serializersConfig);
}
{code}

This class is also used as a tag, to check if a serializer needs to be reconfigured when serializer
configuration change is detected.



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