Trait ScalarExt

pub trait ScalarExt: Sized {
    // Required methods
    fn serialize(&self) -> String;
    fn serialize_encoded(&self) -> String;
    fn from_array(arr: &dyn Array, index: usize) -> Option<Self>;
}

Auxiliary methods for dealing with kernel scalars

Required Methods

fn serialize(&self) -> String

Serialize to string

fn serialize_encoded(&self) -> String

Serialize to string for use in hive partition file names

fn from_array(arr: &dyn Array, index: usize) -> Option<Self>

Create a Scalar from an arrow array row

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl ScalarExt for Scalar

fn serialize(&self) -> String

Serializes this scalar as a string.

fn serialize_encoded(&self) -> String

Serializes this scalar as a string for use in hive partition file names.

fn from_array(arr: &dyn Array, index: usize) -> Option<Self>

Create a Scalar form a row in an arrow array.

Implementors