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ColumnView

Struct ColumnView 

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pub struct ColumnView<'a> { /* private fields */ }

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impl<'a> ColumnView<'a>

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pub fn name(&self) -> &'a str

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pub fn type_code(&self) -> ColumnTypeCode

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pub fn len(&self) -> usize

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pub fn is_empty(&self) -> bool

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pub fn raw(&self) -> BorrowedColumn<'a>

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pub fn defined_bitvec(&self) -> Option<&'a [u8]>

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pub fn is_defined(&self, index: usize) -> bool

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pub fn u8(&self) -> Option<&'a [u8]>

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pub fn u16(&self) -> Option<&'a [u16]>

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pub fn u32(&self) -> Option<&'a [u32]>

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pub fn u64(&self) -> Option<&'a [u64]>

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pub fn u128(&self) -> Option<&'a [u128]>

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pub fn i8(&self) -> Option<&'a [i8]>

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pub fn i16(&self) -> Option<&'a [i16]>

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pub fn i32(&self) -> Option<&'a [i32]>

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pub fn i64(&self) -> Option<&'a [i64]>

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pub fn i128(&self) -> Option<&'a [i128]>

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pub fn f32(&self) -> Option<&'a [f32]>

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pub fn f64(&self) -> Option<&'a [f64]>

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pub fn bool_iter(&self) -> Option<BoolIter<'a>>

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pub fn utf8_iter(&self) -> Option<impl Iterator<Item = &'a str> + 'a>

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pub fn blob_iter(&self) -> Option<impl Iterator<Item = &'a [u8]> + 'a>

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pub fn decimal_iter(&self) -> Option<impl Iterator<Item = Option<Decimal>> + 'a>

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pub fn to_u64_vec(&self) -> Option<Vec<u64>>

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pub fn to_i64_vec(&self) -> Option<Vec<i64>>

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pub fn to_f64_vec(&self) -> Option<Vec<f64>>

Trait Implementations§

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impl<'a> Clone for ColumnView<'a>

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fn clone(&self) -> ColumnView<'a>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a> Copy for ColumnView<'a>

Auto Trait Implementations§

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impl<'a> Freeze for ColumnView<'a>

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impl<'a> RefUnwindSafe for ColumnView<'a>

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impl<'a> !Send for ColumnView<'a>

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impl<'a> !Sync for ColumnView<'a>

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impl<'a> Unpin for ColumnView<'a>

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impl<'a> UnsafeUnpin for ColumnView<'a>

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impl<'a> UnwindSafe for ColumnView<'a>

Blanket Implementations§

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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
where T: ?Sized,

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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> CloneToUninit for T
where T: Clone,

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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
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more