Struct xitca_postgres::statement::StatementGuarded

pub struct StatementGuarded<'a, C>
where
    C: Prepare,
{ /* private fields */ }

a statement guard contains a prepared postgres statement. the guard can be dereferenced or borrowed as Statement which can be used for query apis.

the guard would cancel it’s statement when dropped. generic C type must be a client type impl Prepare trait to instruct the cancellation.

Implementations

impl<C> StatementGuarded<'_, C>

where C: Prepare,

pub fn leak(self) -> Statement

Leak the statement and it would not be cancelled for current connection. does not cause memory leak.

Methods from Deref<Target = Statement>

pub fn params(&self) -> &[Type]

Returns the expected types of the statement’s parameters.

pub fn columns(&self) -> &[Column]

Returns information about the columns returned when the statement is queried.

Trait Implementations

impl<C> AsRef<Statement> for StatementGuarded<'_, C>

where C: Prepare,

fn as_ref(&self) -> &Statement

Converts this type into a shared reference of the (usually inferred) input type.

impl<C> Deref for StatementGuarded<'_, C>

where C: Prepare,

type Target = Statement

The resulting type after dereferencing.

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

Dereferences the value.

impl<C> Drop for StatementGuarded<'_, C>

where C: Prepare,

fn drop(&mut self)

Executes the destructor for this type.

impl<C> Encode for &StatementGuarded<'_, C>

where C: Prepare,

fn encode<I, const SYNC_MODE: bool>( self, params: I, buf: &mut BytesMut, ) -> Result<(), Error>

where I: AsParams,