Enum scylla::transport::query_result::FirstRowError
source · [−]pub enum FirstRowError {
RowsExpected(RowsExpectedError),
RowsEmpty,
}
Variants
RowsExpected(RowsExpectedError)
QueryResult::first_row()
called on a bad QueryResult.
Expected QueryResult.rows
to be Some
, but it was None
.
QueryResult.rows
is Some
for queries that can return rows (e.g SELECT
).
It is None
for queries that can’t return rows (e.g INSERT
).
RowsEmpty
Rows in QueryResult
are empty
Trait Implementations
sourceimpl Debug for FirstRowError
impl Debug for FirstRowError
sourceimpl Display for FirstRowError
impl Display for FirstRowError
sourceimpl Error for FirstRowError
impl Error for FirstRowError
sourcefn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
sourcefn backtrace(&self) -> Option<&Backtrace>
fn backtrace(&self) -> Option<&Backtrace>
backtrace
)Returns a stack backtrace, if available, of where this error occurred. Read more
1.0.0 · sourcefn description(&self) -> &str
fn description(&self) -> &str
use the Display impl or to_string()
sourceimpl From<FirstRowError> for FirstRowTypedError
impl From<FirstRowError> for FirstRowTypedError
sourcefn from(err: FirstRowError) -> FirstRowTypedError
fn from(err: FirstRowError) -> FirstRowTypedError
Converts to this type from the input type.
sourceimpl From<RowsExpectedError> for FirstRowError
impl From<RowsExpectedError> for FirstRowError
sourcefn from(source: RowsExpectedError) -> Self
fn from(source: RowsExpectedError) -> Self
Converts to this type from the input type.
sourceimpl PartialEq<FirstRowError> for FirstRowError
impl PartialEq<FirstRowError> for FirstRowError
sourcefn eq(&self, other: &FirstRowError) -> bool
fn eq(&self, other: &FirstRowError) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &FirstRowError) -> bool
fn ne(&self, other: &FirstRowError) -> bool
This method tests for !=
.
impl Eq for FirstRowError
impl StructuralEq for FirstRowError
impl StructuralPartialEq for FirstRowError
Auto Trait Implementations
impl RefUnwindSafe for FirstRowError
impl Send for FirstRowError
impl Sync for FirstRowError
impl Unpin for FirstRowError
impl UnwindSafe for FirstRowError
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
fn vzip(self) -> V
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more