ReadPool

Struct ReadPool 

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pub struct ReadPool<P> { /* private fields */ }
Expand description

A pool which supports separate read-write and read-only connections. Example:

 use rocket_db_pools::Database;
 use rocket_read_db_pools::ReadPool;

 #[derive(Database)]
 #[database("db")]
 struct Db(ReadPool<Pool>);
[default.databases.main]
url = "postgresql://user@host.example/dbname"
[default.databases.main.read]
url = "postgresql://user@readreplica.example/dbname"
max_connections = 10

Trait Implementations§

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impl<P> Pool for ReadPool<P>
where P: Pool,

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type Error = <P as Pool>::Error

The error type returned by Self::init() and Self::get().
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type Connection = <P as Pool>::Connection

The connection type managed by this pool, returned by Self::get().
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fn init<'life0, 'async_trait>( figment: &'life0 Figment, ) -> Pin<Box<dyn Future<Output = Result<Self, Self::Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Constructs a pool from a Value. Read more
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fn get<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Self::Connection, Self::Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Asynchronously retrieves a connection from the factory or pool. Read more
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fn close<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = ()> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Shutdown the connection pool, disallowing any new connections from being retrieved and waking up any tasks with active connections. Read more

Auto Trait Implementations§

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impl<P> Freeze for ReadPool<P>
where P: Freeze,

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impl<P> RefUnwindSafe for ReadPool<P>
where P: RefUnwindSafe,

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impl<P> Send for ReadPool<P>
where P: Send,

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impl<P> Sync for ReadPool<P>
where P: Sync,

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impl<P> Unpin for ReadPool<P>
where P: Unpin,

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impl<P> UnwindSafe for ReadPool<P>
where P: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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Returns the argument unchanged.

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