pub enum NullHandling {
PropagateNulls,
UserHandled,
}Expand description
How the framework handles NULL values in scalar-fn arguments.
Variants§
PropagateNulls
Any NULL in an arg short-circuits to NULL output (standard Cypher).
UserHandled
The function handles NULL explicitly via Option<T> semantics.
Trait Implementations§
Source§impl Clone for NullHandling
impl Clone for NullHandling
Source§fn clone(&self) -> NullHandling
fn clone(&self) -> NullHandling
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for NullHandling
Source§impl Debug for NullHandling
impl Debug for NullHandling
impl Eq for NullHandling
Source§impl PartialEq for NullHandling
impl PartialEq for NullHandling
Source§fn eq(&self, other: &NullHandling) -> bool
fn eq(&self, other: &NullHandling) -> bool
Tests for
self and other values to be equal, and is used by ==.impl StructuralPartialEq for NullHandling
Auto Trait Implementations§
impl Freeze for NullHandling
impl RefUnwindSafe for NullHandling
impl Send for NullHandling
impl Sync for NullHandling
impl Unpin for NullHandling
impl UnsafeUnpin for NullHandling
impl UnwindSafe for NullHandling
Blanket Implementations§
impl<T> Allocation for T
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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
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>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more