Trait Observer 

pub trait Observer: Send + Sync {
    // Required method
    fn read<'life0, 'life1, 'life2, 'life3, 'async_trait>(
        &'life0 self,
        schema: &'life1 Schema,
        types: &'life2 [TypeName],
        state: &'life3 StateStore,
    ) -> Pin<Box<dyn Future<Output = Result<ObservedState>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait,
             'life3: 'async_trait;
}

read capability: observe backend state.

Required Methods

fn read<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, schema: &'life1 Schema, types: &'life2 [TypeName], state: &'life3 StateStore, ) -> Pin<Box<dyn Future<Output = Result<ObservedState>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Dyn Compatibility

This trait is dyn compatible.

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

Implementors