pub trait Execute<'q, DB: Database>: Send + Sized {
fn sql(&self) -> &'q str;
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement>;
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments>;
fn persistent(&self) -> bool;
}
Expand description
Required Methods
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement>
fn statement(&self) -> Option<&<DB as HasStatement<'q>>::Statement>
Gets the previously cached statement, if available.
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments>
fn take_arguments(&mut self) -> Option<<DB as HasArguments<'q>>::Arguments>
Returns the arguments to be bound against the query string.
Returning None
for Arguments
indicates to use a “simple” query protocol and to not
prepare the query. Returning Some(Default::default())
is an empty arguments object that
will be prepared (and cached) before execution.
fn persistent(&self) -> bool
fn persistent(&self) -> bool
Returns true
if the statement should be cached.