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Adapter

alembic_engine

Trait Adapter 

Source 
pub trait Adapter: Send + Sync {
    // 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;
    fn write<'life0, 'life1, 'life2, 'life3, 'async_trait>(
        &'life0 self,
        schema: &'life1 Schema,
        ops: &'life2 [Op],
        state: &'life3 StateStore,
    ) -> Pin<Box<dyn Future<Output = Result<ApplyReport>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait,
             'life3: 'async_trait;

    // Provided method
    fn ensure_schema<'life0, 'life1, 'async_trait>(
        &'life0 self,
        _schema: &'life1 Schema,
    ) -> Pin<Box<dyn Future<Output = Result<ProvisionReport>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait { ... }
}
Expand description

adapter contract for backend-specific io.

Required Methods§

Source

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,

Source

fn write<'life0, 'life1, 'life2, 'life3, 'async_trait>( &'life0 self, schema: &'life1 Schema, ops: &'life2 [Op], state: &'life3 StateStore, ) -> Pin<Box<dyn Future<Output = Result<ApplyReport>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait, 'life3: 'async_trait,

Provided Methods§

Source

fn ensure_schema<'life0, 'life1, 'async_trait>( &'life0 self, _schema: &'life1 Schema, ) -> Pin<Box<dyn Future<Output = Result<ProvisionReport>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Implementors§