Struct MaterializedView 

pub struct MaterializedView {
    pub id: String,
    pub source_id: String,
    /* private fields */
}

A materialized view that tracks a subset of entities based on a pipeline

Fields

id: String

View identifier

source_id: String

Source view/entity this derives from

Implementations

impl MaterializedView

pub fn new(id: String, source_id: String, pipeline: ViewPipeline) -> Self

Create a new materialized view

pub async fn get_keys(&self) -> HashSet<String>

Get current keys in the view

pub async fn evaluate_initial( &self, cache: &EntityCache, ) -> Vec<(String, Value)>

Evaluate initial state from cache

pub async fn compute_effect( &self, key: &str, new_value: Option<&Value>, _cache: &EntityCache, ) -> ViewEffect

Determine the effect of an entity update on this view

pub async fn apply_effect(&self, effect: &ViewEffect)

Apply an effect to update the current keys

Trait Implementations

impl Debug for MaterializedView

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

Formats the value using the given formatter.