parquet::arrow::arrow_writer::levels

Struct ArrayLevels

Source
pub(crate) struct ArrayLevels {
    def_levels: Option<Vec<i16>>,
    rep_levels: Option<Vec<i16>>,
    non_null_indices: Vec<usize>,
    max_def_level: i16,
    max_rep_level: i16,
    array: ArrayRef,
}
Expand description

The data necessary to write a primitive Arrow array to parquet, taking into account any non-primitive parents it may have in the arrow representation

Fields§

§def_levels: Option<Vec<i16>>

Array’s definition levels

Present if max_def_level != 0

§rep_levels: Option<Vec<i16>>

Array’s optional repetition levels

Present if max_rep_level != 0

§non_null_indices: Vec<usize>

The corresponding array identifying non-null slices of data from the primitive array

§max_def_level: i16

The maximum definition level for this leaf column

§max_rep_level: i16

The maximum repetition for this leaf column

§array: ArrayRef

The arrow array

Implementations§

Source§

impl ArrayLevels

Source

fn new(ctx: LevelContext, is_nullable: bool, array: ArrayRef) -> Self

Source

pub fn array(&self) -> &ArrayRef

Source

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

Source

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

Source

pub fn non_null_indices(&self) -> &[usize]

Trait Implementations§

Source§

impl Clone for ArrayLevels

Source§

fn clone(&self) -> ArrayLevels

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
Source§

impl Debug for ArrayLevels

Source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
Source§

impl PartialEq for ArrayLevels

Source§

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl Eq for ArrayLevels

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

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

Source§

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

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> IntoEither for T

Source§

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
Source§

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
Source§

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

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

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

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

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

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
§

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

§

impl<T> MaybeSendSync for T