ObjectIdScalar

rdf_fusion::encoding::object_id

Struct ObjectIdScalar 

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pub struct ObjectIdScalar { /* private fields */ }
Expand description

Represents an Arrow scalar with a ObjectIdEncoding.

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impl ObjectIdScalar

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pub fn try_new( encoding: ObjectIdEncoding, value: ScalarValue, ) -> Result<ObjectIdScalar, DataFusionError>

Tries to create a new ObjectIdScalar from a regular ScalarValue.

§Errors

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

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pub fn new_unchecked( encoding: ObjectIdEncoding, inner: ScalarValue, ) -> ObjectIdScalar

Creates a new ObjectIdScalar without checking invariants.

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pub fn null(encoding: ObjectIdEncoding) -> ObjectIdScalar

Creates a new ObjectIdScalar from the given object_id.

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pub fn from_object_id( encoding: ObjectIdEncoding, object_id: ObjectId, ) -> ObjectIdScalar

Creates a new ObjectIdScalar from the given object_id.

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pub fn as_object(&self) -> Option<ObjectId>

Returns an ObjectId from this scalar.

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impl EncodingScalar for ObjectIdScalar

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type Encoding = ObjectIdEncoding

The encoding used by this scalar.
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fn encoding(&self) -> &<ObjectIdScalar as EncodingScalar>::Encoding

Obtains the encoding instance for this scalar.
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fn scalar_value(&self) -> &ScalarValue

Returns a reference to the inner scalar value.
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fn into_scalar_value(self) -> ScalarValue

Consumes self and returns the inner scalar value.
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fn to_array( &self, number_of_rows: usize, ) -> Result<<Self::Encoding as TermEncoding>::Array, DataFusionError>

Produces a new array with number_of_rows.

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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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
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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
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
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fn vzip(self) -> V

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