pub trait ObjectMetadataReader:
Send
+ Sync
+ Debug {
// Required method
fn head<'life0, 'life1, 'async_trait>(
&'life0 self,
key: &'life1 ObjectKey,
) -> Pin<Box<dyn Future<Output = Result<Option<ObjectHead>, ObjectStoreError>> + Send + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
}Expand description
Provider port for an inexpensive metadata lookup such as S3 HeadObject.
Required Methods§
fn head<'life0, 'life1, 'async_trait>(
&'life0 self,
key: &'life1 ObjectKey,
) -> Pin<Box<dyn Future<Output = Result<Option<ObjectHead>, ObjectStoreError>> + Send + 'async_trait>>where
Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait,
Dyn Compatibility§
This trait is dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".