parquet::record::api

Struct List

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pub struct List {
    elements: Vec<Field>,
}
Expand description

List represents a list which contains an array of elements.

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§elements: Vec<Field>

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impl List

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pub fn len(&self) -> usize

Get the number of fields in this row

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pub fn elements(&self) -> &[Field]

Get the reference to the elements in this list

Trait Implementations§

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impl Clone for List

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fn clone(&self) -> List

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 List

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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 ListAccessor for List

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fn get_bool(&self, i: usize) -> Result<bool>

Try getting a boolean value at the given index.
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fn get_byte(&self, i: usize) -> Result<i8>

Try getting a byte value at the given index.
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fn get_short(&self, i: usize) -> Result<i16>

Try getting an i16 value at the given index.
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fn get_int(&self, i: usize) -> Result<i32>

Try getting an i32 value at the given index.
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fn get_long(&self, i: usize) -> Result<i64>

Try getting an i64 value at the given index.
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fn get_ubyte(&self, i: usize) -> Result<u8>

Try getting a u8 value at the given index.
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fn get_ushort(&self, i: usize) -> Result<u16>

Try getting a u16 value at the given index.
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fn get_uint(&self, i: usize) -> Result<u32>

Try getting a u32 value at the given index.
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fn get_ulong(&self, i: usize) -> Result<u64>

Try getting a u64 value at the given index.
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fn get_float16(&self, i: usize) -> Result<f16>

Try getting a f16 value at the given index.
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fn get_float(&self, i: usize) -> Result<f32>

Try getting a f32 value at the given index.
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fn get_double(&self, i: usize) -> Result<f64>

Try getting a f64 value at the given index.
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fn get_timestamp_millis(&self, i: usize) -> Result<i64>

Try getting a timestamp as milliseconds value encoded as i64 at the given index.
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fn get_timestamp_micros(&self, i: usize) -> Result<i64>

Try getting a timestamp as microseconds value encoded as i64 at the given index.
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fn get_decimal(&self, i: usize) -> Result<&Decimal>

Try getting a decimal value at the given index.
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fn get_string(&self, i: usize) -> Result<&String>

Try getting a string value at the given index.
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fn get_bytes(&self, i: usize) -> Result<&ByteArray>

Try getting a bytes value at the given index.
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fn get_group(&self, i: usize) -> Result<&Row>

Try getting a group value at the given index.
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fn get_list(&self, i: usize) -> Result<&List>

Try getting a list value at the given index.
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fn get_map(&self, i: usize) -> Result<&Map>

Try getting a map value at the given index.
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impl PartialEq for List

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fn eq(&self, other: &List) -> 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 StructuralPartialEq for List

Auto Trait Implementations§

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impl Freeze for List

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impl RefUnwindSafe for List

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impl Send for List

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impl Sync for List

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impl Unpin for List

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impl UnwindSafe for List

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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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬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> 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> 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, 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