Trait postgres::GenericClient

pub trait GenericClient: Sealed {
    fn execute<T>(
        &mut self,
        query: &T,
        params: &[&(dyn ToSql + Sync)]
    ) -> Result<u64, Error>
    where
        T: ?Sized + ToStatement;
    fn query<T>(
        &mut self,
        query: &T,
        params: &[&(dyn ToSql + Sync)]
    ) -> Result<Vec<Row>, Error>
    where
        T: ?Sized + ToStatement;
    fn query_one<T>(
        &mut self,
        query: &T,
        params: &[&(dyn ToSql + Sync)]
    ) -> Result<Row, Error>
    where
        T: ?Sized + ToStatement;
    fn query_opt<T>(
        &mut self,
        query: &T,
        params: &[&(dyn ToSql + Sync)]
    ) -> Result<Option<Row>, Error>
    where
        T: ?Sized + ToStatement;
    fn query_raw<T, P, I>(
        &mut self,
        query: &T,
        params: I
    ) -> Result<RowIter<'_>, Error>
    where
        T: ?Sized + ToStatement,
        P: BorrowToSql,
        I: IntoIterator<Item = P>,
        I::IntoIter: ExactSizeIterator;
    fn prepare(&mut self, query: &str) -> Result<Statement, Error>;
    fn prepare_typed(
        &mut self,
        query: &str,
        types: &[Type]
    ) -> Result<Statement, Error>;
    fn copy_in<T>(&mut self, query: &T) -> Result<CopyInWriter<'_>, Error>
    where
        T: ?Sized + ToStatement;
    fn copy_out<T>(&mut self, query: &T) -> Result<CopyOutReader<'_>, Error>
    where
        T: ?Sized + ToStatement;
    fn simple_query(
        &mut self,
        query: &str
    ) -> Result<Vec<SimpleQueryMessage>, Error>;
    fn batch_execute(&mut self, query: &str) -> Result<(), Error>;
    fn transaction(&mut self) -> Result<Transaction<'_>, Error>;
}

A trait allowing abstraction over connections and transactions.

This trait is “sealed”, and cannot be implemented outside of this crate.

Required Methods

fn execute<T>(
    &mut self,
    query: &T,
    params: &[&(dyn ToSql + Sync)]
) -> Result<u64, Error> where
    T: ?Sized + ToStatement, 

Like Client::execute.

fn query<T>(
    &mut self,
    query: &T,
    params: &[&(dyn ToSql + Sync)]
) -> Result<Vec<Row>, Error> where
    T: ?Sized + ToStatement, 

Like Client::query.

fn query_one<T>(
    &mut self,
    query: &T,
    params: &[&(dyn ToSql + Sync)]
) -> Result<Row, Error> where
    T: ?Sized + ToStatement, 

Like Client::query_one.

fn query_opt<T>(
    &mut self,
    query: &T,
    params: &[&(dyn ToSql + Sync)]
) -> Result<Option<Row>, Error> where
    T: ?Sized + ToStatement, 

Like Client::query_opt.

fn query_raw<T, P, I>(
    &mut self,
    query: &T,
    params: I
) -> Result<RowIter<'_>, Error> where
    T: ?Sized + ToStatement,
    P: BorrowToSql,
    I: IntoIterator<Item = P>,
    I::IntoIter: ExactSizeIterator, 

Like Client::query_raw.

fn prepare(&mut self, query: &str) -> Result<Statement, Error>

Like Client::prepare.

fn prepare_typed(
    &mut self,
    query: &str,
    types: &[Type]
) -> Result<Statement, Error>

Like Client::prepare_typed.

fn copy_in<T>(&mut self, query: &T) -> Result<CopyInWriter<'_>, Error> where
    T: ?Sized + ToStatement, 

Like Client::copy_in.

fn copy_out<T>(&mut self, query: &T) -> Result<CopyOutReader<'_>, Error> where
    T: ?Sized + ToStatement, 

Like Client::copy_out.

fn simple_query(&mut self, query: &str) -> Result<Vec<SimpleQueryMessage>, Error>

Like Client::simple_query.

fn batch_execute(&mut self, query: &str) -> Result<(), Error>

Like Client::batch_execute.

fn transaction(&mut self) -> Result<Transaction<'_>, Error>

Like Client::transaction.

Implementors

impl GenericClient for Client

impl GenericClient for Transaction<'_>