[−][src]Struct arrow::ipc::reader::StreamReader
Arrow Stream reader
Methods
impl<R: Read> StreamReader<R>
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pub fn try_new(reader: R) -> Result<Self>
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Try to create a new stream reader
The first message in the stream is the schema, the reader will fail if it does not
encounter a schema.
To check if the reader is done, use is_finished(self)
pub fn schema(&self) -> SchemaRef
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Return the schema of the stream
pub fn next(&mut self) -> Result<Option<RecordBatch>>
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Read the next record batch
pub fn is_finished(&self) -> bool
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Check if the stream is finished
Trait Implementations
impl<R: Read> RecordBatchReader for StreamReader<R>
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fn schema(&mut self) -> SchemaRef
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fn next_batch(&mut self) -> Result<Option<RecordBatch>>
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Auto Trait Implementations
impl<R> RefUnwindSafe for StreamReader<R> where
R: RefUnwindSafe,
R: RefUnwindSafe,
impl<R> Send for StreamReader<R> where
R: Send,
R: Send,
impl<R> Sync for StreamReader<R> where
R: Sync,
R: Sync,
impl<R> Unpin for StreamReader<R> where
R: Unpin,
R: Unpin,
impl<R> UnwindSafe for StreamReader<R> where
R: UnwindSafe,
R: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> Cast<U> for T where
U: FromCast<T>,
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U: FromCast<T>,
impl<T> From<T> for T
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impl<T> FromCast<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
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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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,