Struct MaterializedState 

pub struct MaterializedState {
    pub nodes: HashMap<String, MaterializedNode>,
    pub edges: HashMap<String, MaterializedEdge>,
    pub deleted_nodes: HashSet<String>,
    pub deleted_edges: HashSet<String>,
}

Materialized state from replaying events This is an in-memory representation before writing to the database

Fields

nodes: HashMap<String, MaterializedNode>

Nodes indexed by change_id

edges: HashMap<String, MaterializedEdge>

Edges indexed by edge_id

deleted_nodes: HashSet<String>

Deleted node change_ids (tombstones)

deleted_edges: HashSet<String>

Deleted edge_ids (tombstones)

Implementations

impl MaterializedState

pub fn from_checkpoint(checkpoint: &Checkpoint) -> Self

Create from a checkpoint

pub fn apply(&mut self, event: &Event)

Apply an event to the state

pub fn replay(&mut self, events: &[Event])

Replay a series of events onto the state

Trait Implementations

impl Debug for MaterializedState

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

Formats the value using the given formatter.

impl Default for MaterializedState

fn default() -> MaterializedState

Returns the “default value” for a type.