Trait OptimisticLock 

pub trait OptimisticLock {
    // Required method
    fn version_field() -> &'static str;
}

乐观锁 trait — Model 实现此 trait 以声明版本字段名

对应 Hibernate @Version / Doctrine @Version / MyBatis-Plus @Version。

示例

use sz_orm_core::optimistic_lock::OptimisticLock;

struct Product {
    id: i64,
    name: String,
    version: i64,
}

impl OptimisticLock for Product {
    fn version_field() -> &'static str { "version" }
}

Required Methods

fn version_field() -> &'static str

版本字段名（如 “version”、“lock_version”、“rev”）

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors