Trait Key 

pub trait Key:
    Hash
    + Eq
    + Clone
    + Send
    + Sync
    + Debug
    + 'static { }

Trait for query cache keys.

Cache keys must be hashable, comparable, cloneable, and thread-safe.

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> Key for T

where T: Hash + Eq + Clone + Send + Sync + Debug + 'static,