PlainTermScalar

rdf_fusion::encoding::plain_term

Struct PlainTermScalar

pub struct PlainTermScalar { /* private fields */ }

Expand description

Represents an Arrow scalar with a PlainTermEncoding.

Implementations§

impl PlainTermScalar

pub fn try_new(value: ScalarValue) -> Result<PlainTermScalar, DataFusionError>

Tries to create a new PlainTermScalar from a regular ScalarValue.

§Errors

Returns an error if the data type of value is unexpected.

pub fn from_graph_name( graph_name: GraphNameRef<'_>, ) -> Result<PlainTermScalar, DataFusionError>

Creates a new PlainTermScalar from the given graph_name.

pub fn new_unchecked(inner: ScalarValue) -> PlainTermScalar

Creates a new PlainTermScalar without checking invariants.

Trait Implementations§

impl Clone for PlainTermScalar

fn clone(&self) -> PlainTermScalar

Returns a duplicate of the value. Read more

1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl EncodingScalar for PlainTermScalar

type Encoding = PlainTermEncoding

The encoding used by this scalar.

fn encoding(&self) -> &<PlainTermScalar as EncodingScalar>::Encoding

Obtains the encoding instance for this scalar.

fn scalar_value(&self) -> &ScalarValue

Returns a reference to the inner scalar value.

fn into_scalar_value(self) -> ScalarValue

Consumes self and returns the inner scalar value.

fn to_array( &self, number_of_rows: usize, ) -> Result<<Self::Encoding as TermEncoding>::Array, DataFusionError>

Produces a new array with number_of_rows.

impl<'a> From<&'a PlainTermScalar> for GraphNameRef<'a>

fn from(value: &'a PlainTermScalar) -> GraphNameRef<'a>

Converts to this type from the input type.

impl<'a> From<&'a PlainTermScalar> for Result<TermRef<'a>, ThinError>

fn from(value: &'a PlainTermScalar) -> Result<TermRef<'a>, ThinError>

Converts to this type from the input type.

impl From<BlankNodeRef<'_>> for PlainTermScalar

fn from(term: BlankNodeRef<'_>) -> PlainTermScalar

Converts to this type from the input type.

impl From<LiteralRef<'_>> for PlainTermScalar

fn from(term: LiteralRef<'_>) -> PlainTermScalar

Converts to this type from the input type.

impl From<NamedNodeRef<'_>> for PlainTermScalar

fn from(term: NamedNodeRef<'_>) -> PlainTermScalar

Converts to this type from the input type.

impl From<NamedOrBlankNodeRef<'_>> for PlainTermScalar

fn from(term: NamedOrBlankNodeRef<'_>) -> PlainTermScalar

Converts to this type from the input type.

impl From<Term> for PlainTermScalar

fn from(term: Term) -> PlainTermScalar

Converts to this type from the input type.

impl From<TermRef<'_>> for PlainTermScalar

fn from(term: TermRef<'_>) -> PlainTermScalar

Converts to this type from the input type.

impl TryFrom<ScalarValue> for PlainTermScalar

type Error = DataFusionError

The type returned in the event of a conversion error.

fn try_from( value: ScalarValue, ) -> Result<PlainTermScalar, <PlainTermScalar as TryFrom<ScalarValue>>::Error>

Performs the conversion.

Auto Trait Implementations§

impl Freeze for PlainTermScalar

impl !RefUnwindSafe for PlainTermScalar

impl Send for PlainTermScalar

impl Sync for PlainTermScalar

impl Unpin for PlainTermScalar

impl !UnwindSafe for PlainTermScalar

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

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

impl<T> IntoEither for T

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 more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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

impl<T> Same for T

type Output = T

Should always be Self

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

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

fn vzip(self) -> V

impl<T> ErasedDestructor for T
where T: 'static,