Struct Portal

#[non_exhaustive]
pub struct Portal<S> {
    pub name: String,
    pub statement: Arc<StoredStatement<S>>,
    pub parameter_format: Format,
    pub parameters: Vec<Option<Bytes>>,
    pub result_column_format: Format,
}

Represent a prepared sql statement and its parameters bound by a Bind request.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

name: String

statement: Arc<StoredStatement<S>>

parameter_format: Format

parameters: Vec<Option<Bytes>>

result_column_format: Format

Implementations

impl<S: Clone> Portal<S>

pub fn try_new( bind: &Bind, statement: Arc<StoredStatement<S>>, ) -> PgWireResult<Self>

Try to create portal from bind command and current client state

pub fn parameter_len(&self) -> usize

Get number of parameters

pub fn parameter<T>( &self, idx: usize, pg_type: &Type, ) -> PgWireResult<Option<T>>

where T: FromSqlOwned,

Attempt to get parameter at given index as type T.

Trait Implementations

impl<S: Clone> Clone for Portal<S>

fn clone(&self) -> Portal<S>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<S: Debug> Debug for Portal<S>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<S: Default> Default for Portal<S>

fn default() -> Portal<S>

Returns the “default value” for a type.