akka/akka-core

Custom manifest naming for persistence with Jackson

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#30,483 创建于 2021年8月5日

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 (5 评论) (0 反应) (0 负责人)Scala (13,277 star) (3,547 fork)batch import
1 - triagedhelp wantedt:serialization

描述

Full class names as manifests lead to lot of unnecessary storage overhead and leads to problems if event classes are being refactored into different packages.

It would be very helpful to be able to define custom manifest names like e.g. this:

case class @PersistenceManifest("AbcActor.Name") NameEvent(id: UUID, name: string) extends Event

Ideally, it should be checked on startup if persistence manifest names are unique within the running application.

贡献者指南

技术栈
scala
领域
backend
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-2 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
Scala basicsAkka Persistence concepts
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
Investigate the current persistence manifest implementation in Akka's Jackson serialization module. Look for existing annotation processing in the codebase, particularly in files related to event sourcing and persistence. Check for discussions in the issue comments about potential API design. Ensure that the custom manifest names are validated for uniqueness at startup; consider modifying the serializer setup to enforce this constraint.
Custom manifest naming for persistence with Jackson · akka/akka-core#30483 | Good First Issue