Struct ORMap 

pub struct ORMap { /* private fields */ }

An observed-remove map CRDT backed by per-key LWWRegisters.

Keys can be added and updated. Deletion can be modeled via tombstone conventions at the application layer (not enforced here).

Implementations

impl ORMap

pub fn new() -> Self

Create a new, empty ORMap.

pub fn set( &mut self, key: impl Into<String>, value: impl Into<String>, timestamp: u64, writer: impl Into<String>, )

Set a key to a value at the given logical timestamp.

Arguments

• key — The map key.
• value — The string value to store.
• timestamp — Logical timestamp for LWW resolution.
• writer — Identifier of the writing agent.

pub fn get(&self, key: &str) -> Option<&str>

Get a value by key. Returns None if not set.

pub fn merge(&self, other: &ORMap) -> ORMap

Merge with another ORMap.

pub fn len(&self) -> usize

Return the number of keys.

pub fn is_empty(&self) -> bool

Return true if the map is empty.

Trait Implementations

impl Clone for ORMap

fn clone(&self) -> ORMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ORMap

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

Formats the value using the given formatter.

impl Default for ORMap

fn default() -> ORMap

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ORMap

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ORMap

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.