Struct Recorder 

pub struct Recorder<'w> { /* private fields */ }

Writes every call and its answer while inner answers.

Implementations

impl<'w> Recorder<'w>

pub fn new( inner: Box<dyn Database + 'w>, out: Box<dyn Write + 'w>, source: &str, ) -> Result<Recorder<'w>, Error>

source names what answered, and goes in the recording’s header.

Trait Implementations

impl Database for Recorder<'_>

fn execute(&mut self, call: &Call<'_>) -> Result<Outcome, Abandoned>

SELECT INTO, SET, VALUES INTO, INSERT, UPDATE and DELETE, and a dynamic statement that is not a query.

fn prepare(&mut self, call: &Call<'_>) -> Result<Outcome, Abandoned>

Checks a statement string PREPARE names, which then runs through execute or open.

fn open(&mut self, call: &Call<'_>) -> Result<Outcome, Abandoned>

fn fetch(&mut self, call: &Call<'_>) -> Result<Outcome, Abandoned>

One row, or no row at the end.

fn fetch_rows( &mut self, call: &Call<'_>, rows: u32, ) -> Result<Outcome, Abandoned>

Up to rows rows for a rowset FETCH, fewer at the end.

fn insert_rows( &mut self, call: &Call<'_>, rows: &[Vec<Value>], atomic: bool, ) -> Result<Outcome, Abandoned>

A multiple-row INSERT: the INSERT of one row call names, once for each of rows, whose values call.inputs holds one after another. SQLERRD(3) is the rows inserted. ATOMIC undoes them all when one fails; NOT ATOMIC keeps the rest, -253, or -254 when none went in.

fn call(&mut self, call: &Call<'_>) -> Result<Outcome, Abandoned>

CALL of a stored procedure, which a backend that runs none refuses; the answer’s parameters give the arguments as the procedure returns them (numeric::assumptions::CALL_FROM_A_RECORDING).

fn close(&mut self, call: &Call<'_>) -> Result<Outcome, Abandoned>

fn commit(&mut self, call: &Call<'_>) -> Result<Outcome, Abandoned>

fn rollback(&mut self, call: &Call<'_>) -> Result<Outcome, Abandoned>

fn close_all(&mut self) -> Result<(), Abandoned>

Closes every cursor, held ones too, as the end of a CICS task does, so the next task on the same connection finds none open. A backend without cursors of its own has nothing to close.