pub struct Select<'r, C: Connection, R> { /* private fields */ }
Expand description
A select future
Implementations§
source§impl<C, R> Select<'_, C, R>where
C: Connection,
impl<C, R> Select<'_, C, R>where
C: Connection,
sourcepub fn into_owned(self) -> Select<'static, C, R>
pub fn into_owned(self) -> Select<'static, C, R>
Converts to an owned type which can easily be moved to a different thread
source§impl<'r, C> Select<'r, C, Value>where
C: Connection,
impl<'r, C> Select<'r, C, Value>where
C: Connection,
source§impl<'r, C, R> Select<'r, C, Vec<R>>where
C: Connection,
impl<'r, C, R> Select<'r, C, Vec<R>>where
C: Connection,
source§impl<'r, C, R> Select<'r, C, R>where
C: Connection,
R: DeserializeOwned,
impl<'r, C, R> Select<'r, C, R>where
C: Connection,
R: DeserializeOwned,
sourcepub fn live(self) -> Live<'r, C, R>
pub fn live(self) -> Live<'r, C, R>
Turns a normal select query into a live query
Examples
// Select the namespace/database to use
db.use_ns("namespace").use_db("database").await?;
// Listen to all updates on a table
let mut stream = db.select("person").live().await?;
// Listen to updates on a range of records
let mut stream = db.select("person").range("jane".."john").live().await?;
// Listen to updates on a specific record
let mut stream = db.select(("person", "h5wxrf2ewk8xjxosxtyc")).live().await?;
// The returned stream implements `futures::Stream` so we can
// use it with `futures::StreamExt`, for example.
while let Some(result) = stream.next().await {
handle(result);
}
// Handle the result of the live query notification
fn handle(result: Result<Notification<Person>>) {
match result {
Ok(notification) => println!("{notification:?}"),
Err(error) => eprintln!("{error}"),
}
}
Trait Implementations§
source§impl<'r, Client, R> IntoFuture for Select<'r, Client, Option<R>>where
Client: Connection,
R: DeserializeOwned,
impl<'r, Client, R> IntoFuture for Select<'r, Client, Option<R>>where
Client: Connection,
R: DeserializeOwned,
§type IntoFuture = Pin<Box<dyn Future<Output = <Select<'r, Client, Option<R>> as IntoFuture>::Output> + Send + Sync + 'r>>
type IntoFuture = Pin<Box<dyn Future<Output = <Select<'r, Client, Option<R>> as IntoFuture>::Output> + Send + Sync + 'r>>
Which kind of future are we turning this into?
source§fn into_future(self) -> Self::IntoFuture
fn into_future(self) -> Self::IntoFuture
Creates a future from a value. Read more
source§impl<'r, Client> IntoFuture for Select<'r, Client, Value>where
Client: Connection,
impl<'r, Client> IntoFuture for Select<'r, Client, Value>where
Client: Connection,
§type IntoFuture = Pin<Box<dyn Future<Output = <Select<'r, Client, Value> as IntoFuture>::Output> + Send + Sync + 'r>>
type IntoFuture = Pin<Box<dyn Future<Output = <Select<'r, Client, Value> as IntoFuture>::Output> + Send + Sync + 'r>>
Which kind of future are we turning this into?
source§fn into_future(self) -> Self::IntoFuture
fn into_future(self) -> Self::IntoFuture
Creates a future from a value. Read more
source§impl<'r, Client, R> IntoFuture for Select<'r, Client, Vec<R>>where
Client: Connection,
R: DeserializeOwned,
impl<'r, Client, R> IntoFuture for Select<'r, Client, Vec<R>>where
Client: Connection,
R: DeserializeOwned,
§type IntoFuture = Pin<Box<dyn Future<Output = <Select<'r, Client, Vec<R>> as IntoFuture>::Output> + Send + Sync + 'r>>
type IntoFuture = Pin<Box<dyn Future<Output = <Select<'r, Client, Vec<R>> as IntoFuture>::Output> + Send + Sync + 'r>>
Which kind of future are we turning this into?
source§fn into_future(self) -> Self::IntoFuture
fn into_future(self) -> Self::IntoFuture
Creates a future from a value. Read more
Auto Trait Implementations§
impl<'r, C, R> !RefUnwindSafe for Select<'r, C, R>
impl<'r, C, R> Send for Select<'r, C, R>where
R: Send,
impl<'r, C, R> Sync for Select<'r, C, R>where
R: Sync,
impl<'r, C, R> Unpin for Select<'r, C, R>where
R: Unpin,
impl<'r, C, R> !UnwindSafe for Select<'r, C, R>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
§impl<T> Conv for T
impl<T> Conv for T
§impl<T> FmtForward for T
impl<T> FmtForward for T
§fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
Causes
self
to use its Binary
implementation when Debug
-formatted.§fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
Causes
self
to use its Display
implementation when
Debug
-formatted.§fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
Causes
self
to use its LowerExp
implementation when
Debug
-formatted.§fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
Causes
self
to use its LowerHex
implementation when
Debug
-formatted.§fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
Causes
self
to use its Octal
implementation when Debug
-formatted.§fn fmt_pointer(self) -> FmtPointer<Self>where
Self: Pointer,
fn fmt_pointer(self) -> FmtPointer<Self>where
Self: Pointer,
Causes
self
to use its Pointer
implementation when
Debug
-formatted.§fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
Causes
self
to use its UpperExp
implementation when
Debug
-formatted.§fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
Causes
self
to use its UpperHex
implementation when
Debug
-formatted.§fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
Formats each item in a sequence. Read more
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
§impl<T> Pipe for Twhere
T: ?Sized,
impl<T> Pipe for Twhere
T: ?Sized,
§fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere
Self: Sized,
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere
Self: Sized,
Pipes by value. This is generally the method you want to use. Read more
§fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere
R: 'a,
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere
R: 'a,
Borrows
self
and passes that borrow into the pipe function. Read more§fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere
R: 'a,
fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere
R: 'a,
Mutably borrows
self
and passes that borrow into the pipe function. Read more§fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
§fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R
fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R ) -> R
§fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
Borrows
self
, then passes self.as_ref()
into the pipe function.§fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
Mutably borrows
self
, then passes self.as_mut()
into the pipe
function.§fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
Borrows
self
, then passes self.deref()
into the pipe function.§impl<T> Tap for T
impl<T> Tap for T
§fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
Immutable access to the
Borrow<B>
of a value. Read more§fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
Mutable access to the
BorrowMut<B>
of a value. Read more§fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
Immutable access to the
AsRef<R>
view of a value. Read more§fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
Mutable access to the
AsMut<R>
view of a value. Read more§fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
Immutable access to the
Deref::Target
of a value. Read more§fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
Mutable access to the
Deref::Target
of a value. Read more§fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
Calls
.tap()
only in debug builds, and is erased in release builds.§fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
Calls
.tap_mut()
only in debug builds, and is erased in release
builds.§fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
Calls
.tap_borrow()
only in debug builds, and is erased in release
builds.§fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
Calls
.tap_borrow_mut()
only in debug builds, and is erased in release
builds.§fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
Calls
.tap_ref()
only in debug builds, and is erased in release
builds.§fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
Calls
.tap_ref_mut()
only in debug builds, and is erased in release
builds.§fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
Calls
.tap_deref()
only in debug builds, and is erased in release
builds.