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Persistable

engine::persistence

Trait Persistable 

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pub trait Persistable: Sized {
    type Snapshot: Serialize + DeserializeOwned;

    // Required methods
    fn to_snapshot(&self) -> Self::Snapshot;
    fn from_snapshot(snapshot: Self::Snapshot) -> Result<Self, String>;

    // Provided methods
    fn to_bytes(&self) -> Result<Vec<u8>, String> { ... }
    fn from_bytes(data: &[u8]) -> Result<Self, String> { ... }
}
Expand description

Trait for indexes that can be persisted

Required Associated Types§

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type Snapshot: Serialize + DeserializeOwned

The snapshot type for this index

Required Methods§

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fn to_snapshot(&self) -> Self::Snapshot

Create a snapshot of the current state

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fn from_snapshot(snapshot: Self::Snapshot) -> Result<Self, String>

Restore from a snapshot

Provided Methods§

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fn to_bytes(&self) -> Result<Vec<u8>, String>

Serialize to bytes (JSON format)

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fn from_bytes(data: &[u8]) -> Result<Self, String>

Deserialize from bytes (JSON format)

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§