parquet::file::writer

Struct SerializedPageWriter

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pub struct SerializedPageWriter<'a, W: Write> {
    sink: &'a mut TrackedWrite<W>,
}
Expand description

A serialized implementation for Parquet PageWriter. Writes and serializes pages and metadata into output stream.

SerializedPageWriter should not be used after calling close().

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§sink: &'a mut TrackedWrite<W>

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impl<'a, W: Write> SerializedPageWriter<'a, W>

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pub fn new(sink: &'a mut TrackedWrite<W>) -> Self

Creates new page writer.

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fn serialize_page_header(&mut self, header: PageHeader) -> Result<usize>

Serializes page header into Thrift. Returns number of bytes that have been written into the sink.

Trait Implementations§

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impl<W: Write + Send> PageWriter for SerializedPageWriter<'_, W>

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fn write_page(&mut self, page: CompressedPage) -> Result<PageWriteSpec>

Writes a page into the output stream/sink. Returns PageWriteSpec that contains information about written page metrics, including number of bytes, size, number of values, offset, etc. Read more
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fn close(&mut self) -> Result<()>

Closes resources and flushes underlying sink. Page writer should not be used after this method is called.

Auto Trait Implementations§

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impl<'a, W> Freeze for SerializedPageWriter<'a, W>

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impl<'a, W> RefUnwindSafe for SerializedPageWriter<'a, W>
where W: RefUnwindSafe,

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impl<'a, W> Send for SerializedPageWriter<'a, W>
where W: Send,

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impl<'a, W> Sync for SerializedPageWriter<'a, W>
where W: Sync,

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impl<'a, W> Unpin for SerializedPageWriter<'a, W>

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impl<'a, W> !UnwindSafe for SerializedPageWriter<'a, W>

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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

Mutably borrows from an owned value. Read more
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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> IntoEither for T

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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
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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
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impl<T, U> TryFrom<U> for T
where U: Into<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.
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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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

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impl<T> MaybeSendSync for T