Trait StructView 

pub trait StructView: Record + Sized {
    type View<'a>;

    // Required methods
    fn view_at(
        array: &StructArray,
        index: usize,
    ) -> Result<Self::View<'_>, ViewAccessError>;
    fn is_null_at(array: &StructArray, index: usize) -> bool;
}

Trait for creating a view from a StructArray at a specific index.

This is automatically implemented by #[derive(Record)] and used internally to support nested struct views.

Required Associated Types

type View<'a>

The view type for this struct with borrowed references.

Required Methods

fn view_at( array: &StructArray, index: usize, ) -> Result<Self::View<'_>, ViewAccessError>

Extract a view at the given index from a StructArray.

Errors

Returns ViewAccessError if the index is out of bounds, the value is null when expected to be non-null, or if there’s a type mismatch during field extraction.

fn is_null_at(array: &StructArray, index: usize) -> bool

Check if the struct value at the given index is null.

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.

Implementors