Struct Context 

pub struct Context<T> { /* private fields */ }

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

Upcoming Changes

1. This object holds an Arc of Mutex 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.
2. The name is terrible. Interner<T> is better, but I want to minimize breakage for now.

Implementations

impl<T: Clone> Context<T>

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

Create a context with the given initial IDs.

pub fn empty() -> Self

Create an empty context.

pub fn with_registry(self, registry: Registry<T>) -> Self

Configure a registry to restrict the permissible set of interned items.

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

Intern an ID, returning its index.

pub fn resolve(&self, idx: u16) -> Option<Id>

Resolve an interned ID by its index.

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

Get the list of interned IDs.

Trait Implementations

impl<T: Clone> Clone for Context<T>

fn clone(&self) -> Context<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Context<T>

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

Formats the value using the given formatter.

impl<T> Default for Context<T>

fn default() -> Self

Returns the “default value” for a type.