Trait Projection 

pub trait Projection {
    const KIND: &'static str;
}

Trait implemented by read models that can be constructed from an event stream.

Contains a stable KIND identifier for snapshot storage.

Projection is intentionally independent from ProjectionFilters, so #[derive(Projection)] can always be used while filter behaviour remains an explicit opt-in via ProjectionFilters.

Required Associated Constants

const KIND: &'static str

Stable identifier for this projection type.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors