Struct NativeCollection 

pub struct NativeCollection { /* private fields */ }

Implementations

impl NativeCollection

pub fn new( key_field: impl Into<String>, rows: impl IntoIterator<Item = BTreeMap<String, UiValue>>, ) -> Result<Self, NativeCollectionError>

Build an immutable Rust-owned keyed collection.

Errors

Returns an error unless every row contains one unique scalar key.

pub fn from_values( key_field: impl Into<String>, rows: Vec<UiValue>, ) -> Result<Self, NativeCollectionError>

Build a collection from already-normalized UiValue maps.

Errors

Returns an error for an unsafe key field, non-map rows, missing keys, unsupported key values, or duplicate keys.

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn key_field(&self) -> &str

Trait Implementations

impl Clone for NativeCollection

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl CustomType for NativeCollection

fn build(builder: TypeBuilder<'_, Self>)

Builds the custom type for use with the Engine.

impl Debug for NativeCollection

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

Formats the value using the given formatter.

impl From<NativeCollection> for VirtualCollectionData

fn from(collection: NativeCollection) -> Self

Converts to this type from the input type.

impl PartialEq for NativeCollection

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.