orcxx::reader

Struct Reader

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pub struct Reader(/* private fields */);
Expand description

Reads ORC file meta-data and constructs RowReader

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impl Reader

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pub fn new(input_stream: InputStream) -> OrcResult<Reader>

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pub fn new_with_options( input_stream: InputStream, options: ReaderOptions, ) -> OrcResult<Reader>

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pub fn row_reader(&self, options: &RowReaderOptions) -> OrcResult<RowReader>

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pub fn kind(&self) -> Kind

Returns the data type of the file being read. This is usually a struct.

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pub fn stripes(&self) -> impl Iterator<Item = StripeInformation> + '_

Returns an iterator of StripeInformation

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pub fn row_count(&self) -> u64

Returns the total number of rows in the file

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T, U> TryFrom<U> for T
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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.