Redis key / value serializer

[RomainWilbert]

Description

We should be able to customize serializers/deserializers for redis operations. This would allow to add type metadata in json (i.e. support generic objects in json).

Implementation ideas

No response

[quarkus-bot]

/cc @cescoffier (redis), @gsmet (redis), @machi1990 (redis)

[cescoffier]

Would having support for TypeReference be enough?

[RomainWilbert]

It would be nice to be able to configure Jackson ObjectMapper and set default typing.

[cescoffier]

you can already do that by customizing the object mapper of quarkus (https://github.com/quarkusio/quarkus/blob/main/integration-tests/jackson/src/main/java/io/quarkus/it/jackson/MyObjectMapperCustomizer.java)

[RomainWilbert]

What if you use Jackson for Redis and elsewhere to make rest calls ?

[cescoffier]

It uses the same mapper. Mapper are heavy objects. We don't want to create many of them.

[RomainWilbert]

Unfortunately you don't get to choose the payload format when you call external systems Le mar. 27 juin 2023, 20:32, Clement Escoffier ***@***.***> a écrit :

…

It uses the same mapper. Mapper are heavy objects. We don't want to create many of them. — Reply to this email directly, view it on GitHub <#34329 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGGSLZRMRJX3MG664LAPLI3XNMRM3ANCNFSM6AAAAAAZVGGLPY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[cescoffier]

So, you would need a separate mapper?

[RomainWilbert]

It would be nice to be able to configure the mapper or set a bean serializer like Spring with RedisTemplate Le jeu. 29 juin 2023, 07:21, Clement Escoffier ***@***.***> a écrit :

…

So, you would need a separate mapper? — Reply to this email directly, view it on GitHub <#34329 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AGGSLZSBSVRPTG6NV2565ULXNUGFFANCNFSM6AAAAAAZVGGLPY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[cescoffier]

Yes, I was thinking about that. The memory cost is annoying. I am trying to see if Jackson has some hidden gems to avoid that.

[cescoffier]

Ok... so I tried to customize the ObjectMapper, but it turned out to be a dead end.

Thus, I implemented something I had wanted to do since day 1: custom codecs.
See #34486.

You can now implement your own codec for a specific type. Implementations are beans, so it can get config values and other beans.