Trait ColumnReader 

pub trait ColumnReader {
    // Required methods
    fn remaining(&self) -> usize;
    fn is_null_at(&self, ahead: usize) -> Result<bool>;
    fn skip(&mut self) -> Result<()>;
    fn bool(&mut self) -> Result<bool>;
    fn int(&mut self) -> Result<i64>;
    fn float(&mut self) -> Result<f64>;
    fn text(&mut self) -> Result<&str>;
    fn bytes(&mut self) -> Result<&[u8]>;
    fn uuid(&mut self) -> Result<Uuid>;
    fn timestamp(&mut self) -> Result<Timestamp>;
    fn date(&mut self) -> Result<Date>;
    fn date_time(&mut self) -> Result<DateTime>;
    fn json(&mut self) -> Result<Value>;
    fn value(&mut self) -> Result<SqlValue>;

    // Provided method
    fn is_null(&self) -> Result<bool> { ... }
}

One row’s columns in order, each read once straight into its target, text borrowed meanwhile.

Required Methods

fn remaining(&self) -> usize

fn is_null_at(&self, ahead: usize) -> Result<bool>

Of the column ahead places past the next one, without reading it.

fn skip(&mut self) -> Result<()>

fn bool(&mut self) -> Result<bool>

fn int(&mut self) -> Result<i64>

fn float(&mut self) -> Result<f64>

fn text(&mut self) -> Result<&str>

fn bytes(&mut self) -> Result<&[u8]>

fn uuid(&mut self) -> Result<Uuid>

fn timestamp(&mut self) -> Result<Timestamp>

fn date(&mut self) -> Result<Date>

fn date_time(&mut self) -> Result<DateTime>

fn json(&mut self) -> Result<Value>

fn value(&mut self) -> Result<SqlValue>

Provided Methods

fn is_null(&self) -> Result<bool>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl ColumnReader for RowReader<'_>