ForEachHandler

Struct ForEachHandler 

Source
pub struct ForEachHandler<T, F> { /* private fields */ }
Expand description

Handler that calls a closure for each row.

Implementations§

Source§

impl<T, F> ForEachHandler<T, F>
where F: FnMut(T) -> Result<()>,

Source

pub fn new(f: F) -> Self

Create a new foreach handler.

Trait Implementations§

Source§

impl<T: for<'a> FromRow<'a>, F: FnMut(T) -> Result<()>> ExtendedHandler for ForEachHandler<T, F>

Source§

fn row(&mut self, cols: RowDescription<'_>, row: DataRow<'_>) -> Result<()>

Called for each data row.
Source§

fn result_start(&mut self, cols: RowDescription<'_>) -> Result<()>

Called when a result set begins.
Source§

fn result_end(&mut self, complete: CommandComplete<'_>) -> Result<()>

Called when a result set ends.
Source§

impl<T: for<'a> FromRow<'a>, F: FnMut(T) -> Result<()>> SimpleHandler for ForEachHandler<T, F>

Source§

fn row(&mut self, cols: RowDescription<'_>, row: DataRow<'_>) -> Result<()>

Called for each data row.
Source§

fn result_start(&mut self, cols: RowDescription<'_>) -> Result<()>

Called when a result set begins.
Source§

fn result_end(&mut self, complete: CommandComplete<'_>) -> Result<()>

Called when a result set ends.

Auto Trait Implementations§

§

impl<T, F> Freeze for ForEachHandler<T, F>
where F: Freeze,

§

impl<T, F> RefUnwindSafe for ForEachHandler<T, F>

§

impl<T, F> Send for ForEachHandler<T, F>
where F: Send, T: Send,

§

impl<T, F> Sync for ForEachHandler<T, F>
where F: Sync, T: Sync,

§

impl<T, F> Unpin for ForEachHandler<T, F>
where F: Unpin, T: Unpin,

§

impl<T, F> UnwindSafe for ForEachHandler<T, F>
where F: UnwindSafe, T: UnwindSafe,

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

Source§

fn vzip(self) -> V