[−][src]Struct parquet::record::reader::TreeBuilder
Tree builder for Reader
enum.
Serves as a container of options for building a reader tree and a builder, and
accessing a records iterator RowIter
.
Methods
impl TreeBuilder
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impl TreeBuilder
pub fn new() -> Self
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pub fn new() -> Self
Creates new tree builder with default parameters.
pub fn with_batch_size(self, batch_size: usize) -> Self
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pub fn with_batch_size(self, batch_size: usize) -> Self
Sets batch size for this tree builder.
pub fn build(
&self,
descr: SchemaDescPtr,
row_group_reader: &dyn RowGroupReader
) -> Reader
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pub fn build(
&self,
descr: SchemaDescPtr,
row_group_reader: &dyn RowGroupReader
) -> Reader
Creates new root reader for provided schema and row group.
ⓘImportant traits for ReaderIterpub fn as_iter(
&self,
descr: SchemaDescPtr,
row_group_reader: &dyn RowGroupReader
) -> ReaderIter
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ⓘImportant traits for ReaderIter
pub fn as_iter(
&self,
descr: SchemaDescPtr,
row_group_reader: &dyn RowGroupReader
) -> ReaderIter
Creates iterator of Row
s directly from schema descriptor and row group.
Auto Trait Implementations
impl Send for TreeBuilder
impl Send for TreeBuilder
impl Sync for TreeBuilder
impl Sync for TreeBuilder
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T> From for T
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impl<T> From for T
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
🔬 This is a nightly-only experimental API. (
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
🔬 This is a nightly-only experimental API. (
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
impl<E> SpecializationError for E
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impl<E> SpecializationError for E
impl<T> Erased for T
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impl<T> Erased for T
impl<T> Send for T where
T: ?Sized,
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impl<T> Send for T where
T: ?Sized,
impl<T> Sync for T where
T: ?Sized,
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impl<T> Sync for T where
T: ?Sized,
impl<T> Erased for T
impl<T> Erased for T
impl<T, U> TryInto for T where
U: TryFrom<T>,
impl<T, U> TryInto for T where
U: TryFrom<T>,