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ArrayView

Struct ArrayView 

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pub struct ArrayView<'a, T: RowValue> { /* private fields */ }
Expand description

A zero-copy view over one Standard Row Format array.

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impl<'a, T: RowValue> ArrayView<'a, T>

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pub fn len(&self) -> usize

Returns the number of elements encoded in this array.

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pub fn is_empty(&self) -> bool

Returns true when this array contains no elements.

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pub fn iter(&self) -> ArrayIter<'_, 'a, T>

Returns an iterator that reads elements on demand.

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pub fn get(&self, index: usize) -> Result<T::View<'a>, Error>

Reads one array element without materializing the rest of the array.

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pub fn is_null(&self, index: usize) -> Result<bool, Error>

Returns whether an element’s null bit is set.

Trait Implementations§

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impl<T: RowValue> Clone for ArrayView<'_, T>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<T: RowValue> Copy for ArrayView<'_, T>

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impl<'view, 'row, T: RowValue> IntoIterator for &'view ArrayView<'row, T>

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type Item = Result<<T as RowValue>::View<'row>, Error>

The type of the elements being iterated over.
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type IntoIter = ArrayIter<'view, 'row, T>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl<'a, T: RowValue> RowView<'a> for ArrayView<'a, T>

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fn as_bytes(&self) -> &'a [u8]

Returns the complete encoded bytes bound to this view.
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fn encoded_len(&self) -> usize

Returns the number of encoded bytes bound to this view.

Auto Trait Implementations§

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impl<'a, T> Freeze for ArrayView<'a, T>

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impl<'a, T> RefUnwindSafe for ArrayView<'a, T>
where T: RefUnwindSafe,

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impl<'a, T> Send for ArrayView<'a, T>
where T: Send,

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impl<'a, T> Sync for ArrayView<'a, T>
where T: Sync,

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impl<'a, T> Unpin for ArrayView<'a, T>
where T: Unpin,

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impl<'a, T> UnsafeUnpin for ArrayView<'a, T>

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impl<'a, T> UnwindSafe for ArrayView<'a, T>
where T: UnwindSafe,

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> ForyObject for T
where T: Any,

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fn as_any(&self) -> &(dyn Any + 'static)

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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> 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.