Struct parquet::record::Row

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pub struct Row { /* private fields */ }
Expand description

Row represents a nested Parquet record.

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impl Row

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pub fn len(&self) -> usize

Get the number of fields in this row.

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pub fn get_column_iter(&self) -> RowColumnIter<'_>

Get an iterator to go through all columns in the row.

§Example
use std::fs::File;
use parquet::record::Row;
use parquet::file::reader::{FileReader, SerializedFileReader};

let file = File::open("/path/to/file").unwrap();
let reader = SerializedFileReader::new(file).unwrap();
let row: Row = reader.get_row_iter(None).unwrap().next().unwrap().unwrap();
for (idx, (name, field)) in row.get_column_iter().enumerate() {
    println!("column index: {}, column name: {}, column value: {}", idx, name, field);
}

Trait Implementations§

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impl Clone for Row

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fn clone(&self) -> Row

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Row

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Display for Row

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for Row

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fn eq(&self, other: &Row) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl RowAccessor for Row

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impl RowFormatter for Row

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fn fmt(&self, i: usize) -> &dyn Display

Get Display reference for a given field.

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impl StructuralPartialEq for Row

Auto Trait Implementations§

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impl Freeze for Row

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impl RefUnwindSafe for Row

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impl Send for Row

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impl Sync for Row

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impl Unpin for Row

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impl UnwindSafe for Row

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,