Trait deadpool::managed::Manager

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pub trait Manager: Sync + Send {
    type Type;
    type Error;

    // Required methods
    fn create<'life0, 'async_trait>(
        &'life0 self
    ) -> Pin<Box<dyn Future<Output = Result<Self::Type, Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn recycle<'life0, 'life1, 'async_trait>(
        &'life0 self,
        obj: &'life1 mut Self::Type
    ) -> Pin<Box<dyn Future<Output = RecycleResult<Self::Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;

    // Provided method
    fn detach(&self, _obj: &mut Self::Type) { ... }
}
Expand description

Manager responsible for creating new Objects or recycling existing ones.

Required Associated Types§

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type Type

Type of Objects that this Manager creates and recycles.

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type Error

Error that this Manager can return when creating and/or recycling Objects.

Required Methods§

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fn create<'life0, 'async_trait>( &'life0 self ) -> Pin<Box<dyn Future<Output = Result<Self::Type, Self::Error>> + Send + 'async_trait>>where Self: 'async_trait, 'life0: 'async_trait,

Creates a new instance of Manager::Type.

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fn recycle<'life0, 'life1, 'async_trait>( &'life0 self, obj: &'life1 mut Self::Type ) -> Pin<Box<dyn Future<Output = RecycleResult<Self::Error>> + Send + 'async_trait>>where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Tries to recycle an instance of Manager::Type.

Errors

Returns Manager::Error if the instance couldn’t be recycled.

Provided Methods§

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fn detach(&self, _obj: &mut Self::Type)

Detaches an instance of Manager::Type from this Manager.

This method is called when using the Object::take() method for removing an Object from a Pool. If the Manager doesn’t hold any references to the handed out Objects then the default implementation can be used which does nothing.

Implementors§

impl<C> Manager for AsyncDieselConnectionManager<C>where C: PoolableConnection + Send + 'static,