Trait JoinMeta 

pub trait JoinMeta {
    type IdType: Clone + Send + Eq + PartialEq + Hash;

    // Required method
    fn _id(&self) -> Self::IdType;
}

Required Associated Types

type IdType: Clone + Send + Eq + PartialEq + Hash

Required Methods

fn _id(&self) -> Self::IdType

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl<T> JoinMeta for Option<T>

where T: JoinMeta,

type IdType = Option<<T as JoinMeta>::IdType>

fn _id(&self) -> <Option<T> as JoinMeta>::IdType

Implementors

impl<T> JoinMeta for Join<T>

where T: JoinMeta,

type IdType = <T as JoinMeta>::IdType