parquet::arrow::arrow_writer

Struct ArrowColumnWriterFactory

Source 
struct ArrowColumnWriterFactory {
    row_group_index: usize,
    file_encryptor: Option<Arc<FileEncryptor>>,
}
Expand description

Gets ArrowColumnWriter instances for different data types

Fields§

§row_group_index: usize§file_encryptor: Option<Arc<FileEncryptor>>

Implementations§

Source§

impl ArrowColumnWriterFactory

Source

pub fn new() -> Self

Source

pub fn with_file_encryptor( self, row_group_index: usize, file_encryptor: Option<Arc<FileEncryptor>>, ) -> Self

Source

fn create_page_writer( &self, column_descriptor: &ColumnDescPtr, column_index: usize, ) -> Result<Box<ArrowPageWriter>>

Source

fn get_arrow_column_writer( &self, data_type: &ArrowDataType, props: &WriterPropertiesPtr, leaves: &mut Iter<'_, ColumnDescPtr>, out: &mut Vec<ArrowColumnWriter>, ) -> Result<()>

Gets the ArrowColumnWriter for the given data_type

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> 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, 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> Allocation for T
where T: RefUnwindSafe + Send + Sync,

§

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

§

impl<T> MaybeSendSync for T