Struct ORMap 

pub struct ORMap<K, V: Merge + Default + Clone> { /* private fields */ }

An observed-remove map with nested CRDT values.

Keys are managed with OR-Set add-wins semantics. Values are merged using their CRDT merge function.

Implementations

impl<K: Hash + Eq + Clone, V: Merge + Default + Clone> ORMap<K, V>

pub fn new(replica_id: ReplicaId) -> Self

Create a new map with a specific replica ID.

pub fn new_random() -> Self

Create a new map with a random replica ID.

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

Get a reference to a value if the key exists.

pub fn get_or_insert(&mut self, key: K) -> &mut V

Get a mutable reference to a value, creating the key if necessary. Always creates a new dot to ensure add-wins semantics.

pub fn get_mut(&mut self, key: &K) -> Option<&mut V>

Get a mutable reference to a value without creating a new dot. Use this for read-heavy access patterns where add-wins isn’t needed.

pub fn contains_key(&self, key: &K) -> bool

Check if a key exists in the map.

pub fn remove(&mut self, key: &K)

Remove a key from the map.

pub fn len(&self) -> usize

Get the number of keys.

pub fn is_empty(&self) -> bool

Check if the map is empty.

pub fn keys(&self) -> impl Iterator<Item = &K>

Iterate over active keys.

pub fn iter(&self) -> impl Iterator<Item = (&K, &V)>

Iterate over key-value pairs.

Trait Implementations

impl<K: Clone, V: Clone + Merge + Default + Clone> Clone for ORMap<K, V>

fn clone(&self) -> ORMap<K, V>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K: Debug, V: Debug + Merge + Default + Clone> Debug for ORMap<K, V>

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

Formats the value using the given formatter.

impl<K: Hash + Eq + Clone, V: Merge + Default + Clone> Default for ORMap<K, V>

fn default() -> Self

Returns the “default value” for a type.

impl<K: Hash + Eq + Clone + Serialize + DeserializeOwned + Send + 'static, V: Merge + Default + Clone + Serialize + DeserializeOwned + Send + 'static> DeltaCrdt for ORMap<K, V>

type Delta = ORMapDelta<K, V>

The type of delta this CRDT produces.

fn delta_since(&self, since: &VClock) -> Option<Self::Delta>

Extract a delta containing changes since the given version.

fn apply_delta(&mut self, delta: &Self::Delta)

Apply an incoming delta to this CRDT.

fn version(&self) -> VClock

Get the current version (vector clock) of this CRDT.

impl<'de, K, V> Deserialize<'de> for ORMap<K, V>

where K: Serialize + DeserializeOwned + Hash + Eq, V: Serialize + DeserializeOwned + Merge + Default + Clone,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<K: Hash + Eq + Clone, V: Merge + Default + Clone> Merge for ORMap<K, V>

fn merge(&mut self, other: &Self)

Merge another instance into self.

impl<K, V> Serialize for ORMap<K, V>

where K: Serialize + DeserializeOwned + Hash + Eq, V: Serialize + DeserializeOwned + Merge + Default + Clone,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.