Trait StoreErrorPredicates 

pub trait StoreErrorPredicates {
    // Required methods
    fn is_key_not_found(&self) -> bool;
    fn is_already_exists(&self) -> bool;
}

Predicates that classify store errors into common semantic buckets.

This is used by result extension methods (e.g. optional, idempotent) to treat certain expected error conditions as benign outcomes.

Required Methods

fn is_key_not_found(&self) -> bool

Returns true if this error represents a missing entry (e.g. key not found).

fn is_already_exists(&self) -> bool

Returns true if this error represents a duplicate write (e.g. key/hash already exists).

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl StoreErrorPredicates for StoreError