metosin/malli

Feature: Using Java classes as schemas

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#1,007 创建于 2024年2月2日

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 (5 评论) (1 反应) (0 负责人)Clojure (1,724 star) (237 fork)batch import
enhancementhelp wanted

描述

Occasionally, it is necessary to drop down to Java interop. When that happens, I don't want to lose the ease and simplicity of Malli's validation, and I don't want to have to write my own custom :fn schema each time merely to call (instance? SomeClass value).

It would be helpful to have support for recognizing Java classes, effectively wrapping instance? for general use. I looked at the malli.core code and I'm not entirely sure how to accomplish this or I'd offer to do it.

Thanks so much

贡献者指南

技术栈
java
领域
backenddata
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。
half day
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。
fresh
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
Clojure basicsJava interopMalli schema system
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。
40
研究方向
Investigate how Malli registers and handles schema types, particularly custom `:fn` schemas. Look at `malli.core` for the schema dispatch mechanism. To support Java classes, you might need to add a new type or extend existing handling to recognize `Class` objects and generate appropriate validation using `instance?`. Check if there are existing protocols or multimethods for schema creation that can be leveraged.