[−][src]Struct parquet::column::writer::ColumnWriterImpl
Typed column writer for a primitive column.
Methods
impl<T: DataType> ColumnWriterImpl<T>[src]
impl<T: DataType> ColumnWriterImpl<T>pub fn new(
descr: ColumnDescPtr,
props: WriterPropertiesPtr,
page_writer: Box<dyn PageWriter>
) -> Self[src]
pub fn new(
descr: ColumnDescPtr,
props: WriterPropertiesPtr,
page_writer: Box<dyn PageWriter>
) -> Selfpub fn write_batch(
&mut self,
values: &[T::T],
def_levels: Option<&[i16]>,
rep_levels: Option<&[i16]>
) -> Result<usize>[src]
pub fn write_batch(
&mut self,
values: &[T::T],
def_levels: Option<&[i16]>,
rep_levels: Option<&[i16]>
) -> Result<usize>Writes batch of values, definition levels and repetition levels. Returns number of values processed (written).
If definition and repetition levels are provided, we write fully those levels and select how many values to write (this number will be returned), since number of actual written values may be smaller than provided values.
If only values are provided, then all values are written and the length of of the values buffer is returned.
Definition and/or repetition levels can be omitted, if values are non-nullable and/or non-repeated.
pub fn get_total_bytes_written(&self) -> u64[src]
pub fn get_total_bytes_written(&self) -> u64Returns total number of bytes written by this column writer so far. This value is also returned when column writer is closed.
pub fn get_total_rows_written(&self) -> u64[src]
pub fn get_total_rows_written(&self) -> u64Returns total number of rows written by this column writer so far. This value is also returned when column writer is closed.
pub fn close(self) -> Result<(u64, u64, ColumnChunkMetaData)>[src]
pub fn close(self) -> Result<(u64, u64, ColumnChunkMetaData)>Finalises writes and closes the column writer. Returns total bytes written, total rows written and column chunk metadata.
Auto Trait Implementations
impl<T> !Send for ColumnWriterImpl<T>
impl<T> !Send for ColumnWriterImpl<T>impl<T> !Sync for ColumnWriterImpl<T>
impl<T> !Sync for ColumnWriterImpl<T>Blanket Implementations
impl<T, U> Into for T where
U: From<T>, [src]
impl<T, U> Into for T where
U: From<T>, impl<T> From for T[src]
impl<T> From for Timpl<T, U> TryFrom for T where
T: From<U>, [src]
impl<T, U> TryFrom for T where
T: From<U>, type Error = !
try_from)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>try_from)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized, [src]
impl<T> Borrow for T where
T: ?Sized, impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
impl<T, U> TryInto for T where
U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
try_from)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>try_from)Performs the conversion.
impl<T> BorrowMut for T where
T: ?Sized, [src]
impl<T> BorrowMut for T where
T: ?Sized, fn borrow_mut(&mut self) -> &mut T[src]
fn borrow_mut(&mut self) -> &mut TMutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Any for T where
T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src]
fn get_type_id(&self) -> TypeId🔬 This is a nightly-only experimental API. (get_type_id)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
impl<T, U> TryInto for T where
U: TryFrom<T>, impl<E> SpecializationError for E[src]
impl<E> SpecializationError for Efn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized, [src]
fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized, 🔬 This is a nightly-only experimental API. (rustc_private)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?
Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T> Erased for T[src]
impl<T> Erased for Timpl<T> Send for T where
T: ?Sized, [src]
impl<T> Send for T where
T: ?Sized, impl<T> Sync for T where
T: ?Sized, [src]
impl<T> Sync for T where
T: ?Sized, impl<T> Erased for T
impl<T> Erased for T