Trait postgres::GenericClient

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pub trait GenericClient: Sealed {
    // Required methods
    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>;
}
Expand description

A trait allowing abstraction over connections and transactions.

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

Required Methods§

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

Like Client::execute.

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

Like Client::query.

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

Like Client::query_one.

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

Like Client::query_opt.

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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.

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

Like Client::prepare.

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

Like Client::prepare_typed.

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

Like Client::copy_in.

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

Like Client::copy_out.

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

Like Client::simple_query.

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

Like Client::batch_execute.

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

Like Client::transaction.

Implementors§