Trait Payload 

pub trait Payload: Sized {
    type Store: OwnedPayloadStore<Self>;
    type Builder: PayloadBuilderOps<Self, Store = Self::Store>;

    // Required methods
    fn make_builder() -> Result<Self::Builder>;
    fn load_store(dir: &Path) -> Result<Self::Store>;
}

Marker trait that ties a user type to its payload storage strategy.

Implement this trait via #[derive(Payload)] from the ring-db-derive crate (re-exported as ringdb::Payload).

Two storage strategies are available:

Strategy	Attribute	Fetch return
Serde (default)	(none)	T (owned, bincode)
Pod	#[payload(storage = "pod")]	&T (zero-copy mmap)

Required Associated Types

type Store: OwnedPayloadStore<Self>

The read-only store produced by Builder and held inside SealedRingDb.

type Builder: PayloadBuilderOps<Self, Store = Self::Store>

The write-side builder held inside RingDb during insertion. Consumed by build() to produce Store.

Required Methods

fn make_builder() -> Result<Self::Builder>

Create a fresh builder (called by RingDb::new).

fn load_store(dir: &Path) -> Result<Self::Store>

Load the store from a persisted directory (called by RingDb::load).

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.

Implementations on Foreign Types

impl Payload for ()

type Store = SerdeStore<()>

type Builder = SerdeStoreBuilder<()>

fn make_builder() -> Result<Self::Builder>

fn load_store(dir: &Path) -> Result<Self::Store>

Implementors