Trait Cacheable 

pub trait Cacheable:
    Serialize
    + DeserializeOwned
    + Send
    + Sync { }

Marker trait for types that can be cached.

This trait abstracts serialization requirements for cached values. It has a blanket implementation for all types that satisfy the bounds, so you never need to implement it manually.

Feature-Dependent Bounds

Without rkyv_format (default)

Requires serde traits for JSON/binary serialization:

• Serialize + DeserializeOwned + Send + Sync

With rkyv_format

Additionally requires rkyv traits for zero-copy deserialization:

• Archive - Type can be archived
• Serialize - Can serialize to rkyv format
• Archived: CheckBytes - Archived form can be validated
• Archived: Deserialize - Can deserialize from archived form

Example

// Works with default features (serde only)
#[derive(serde::Serialize, serde::Deserialize)]
struct BasicData {
    value: String,
}

// Works with rkyv_format feature
#[derive(serde::Serialize, serde::Deserialize)]
#[derive(rkyv::Archive, rkyv::Serialize, rkyv::Deserialize)]
#[rkyv(check_bytes)]
struct RkyvData {
    value: String,
}

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

impl<T> Cacheable for T

where T: Serialize + DeserializeOwned + Send + Sync,

Available on non-crate feature rkyv_format only.