Trait ColumnValues 

pub trait ColumnValues {
    // Required method
    fn len(&self) -> usize;
}

A collection of ParquetValueType encoded by a ColumnValueEncoder

Required Methods

fn len(&self) -> usize

The number of values in this collection

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ColumnValues for dyn Array

Available on crate feature arrow only.

fn len(&self) -> usize

impl<T: ParquetValueType> ColumnValues for [T]

fn len(&self) -> usize

Implementors