Struct Interner 

pub struct Interner { /* private fields */ }

An Interner holds a set of interned IDs for use during serialization/deserialization, mapping IDs to u16 indices.

Upcoming Changes

This object holds an Arc of RwLock internally because we need concurrent access from the layout writer code path. We should update SegmentSink to take an Array rather than ByteBuffer such that serializing arrays is done sequentially.

Implementations

impl Interner

pub fn new(ids: Vec<Id>) -> Self

Create an interner with the given initial IDs.

pub fn empty() -> Self

Create an empty interner.

pub fn with_allowed_ids(self, allowed: HashSet<Id>) -> Self

Restrict the permissible set of interned IDs to allowed.

The set is snapshotted at this call: IDs registered elsewhere afterwards are not permitted.

pub fn intern(&self, id: &Id) -> Option<u16>

Intern an ID, returning its index.

pub fn to_ids(&self) -> Vec<Id>

Get the list of interned IDs.

Trait Implementations

impl Clone for Interner

fn clone(&self) -> Interner

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Interner

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

Formats the value using the given formatter.

impl Default for Interner

fn default() -> Interner

Returns the “default value” for a type.