Enum parquet::record::reader::Reader

pub enum Reader {
    PrimitiveReader(TypePtr, Box<TripletIter>),
    OptionReader(i16, Box<Reader>),
    GroupReader(Option<TypePtr>, i16, Vec<Reader>),
    RepeatedReader(TypePtr, i16, i16, Box<Reader>),
    KeyValueReader(TypePtr, i16, i16, Box<Reader>, Box<Reader>),
}

Expand description

Reader tree for record assembly

Variants§

PrimitiveReader(TypePtr, Box<TripletIter>)

OptionReader(i16, Box<Reader>)

GroupReader(Option<TypePtr>, i16, Vec<Reader>)

RepeatedReader(TypePtr, i16, i16, Box<Reader>)

KeyValueReader(TypePtr, i16, i16, Box<Reader>, Box<Reader>)

Trait Implementations§

impl Display for Reader

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl Freeze for Reader

impl !RefUnwindSafe for Reader

impl Send for Reader

impl !Sync for Reader

impl Unpin for Reader

impl !UnwindSafe for Reader

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> 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> ToString for T
where T: Display + ?Sized,

default fn to_string(&self) -> String

Converts the given value to a String. 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