Struct taos_query::Manager

pub struct Manager<T> { /* private fields */ }

This is how we manage connections.

Implementations

impl<T: TBuilder> Manager<T>

pub fn new(builder: T) -> Self

pub fn from_dsn<D: IntoDsn>( dsn: D ) -> Result<(Self, BTreeMap<String, String>), T::Error>

Build a connection manager from a DSN.

pub fn into_pool(self) -> Result<Pool<Self>, Error>

pub fn into_pool_with_builder( self, builder: Builder<Self> ) -> Result<Pool<Self>, Error>

Trait Implementations

impl<T: TBuilder> Default for Manager<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> Deref for Manager<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T> DerefMut for Manager<T>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<T: TBuilder> ManageConnection for Manager<T>

type Connection = <T as TBuilder>::Target

The connection type this manager deals with.

type Error = <T as TBuilder>::Error

The error type returned by Connections.

fn connect(&self) -> Result<Self::Connection, Self::Error>

Attempts to create a new connection.

fn is_valid(&self, conn: &mut Self::Connection) -> Result<(), Self::Error>

Determines if the connection is still connected to the database.

fn has_broken(&self, _: &mut Self::Connection) -> bool

Quickly determines if the connection is no longer usable.