Struct Entity 

pub struct Entity {
    pub base: DataPoint,
    pub name: String,
    pub is_a: Option<Uuid>,
    pub description: String,
}

Storage-layer entity model.

Represents an entity (e.g., “TechCorp”, “Alice”, “London”) extracted from text. Each entity has a name, description, and a reference to its EntityType (e.g., “Organization”, “Person”, “Location”).

Fields

base: DataPoint

Base data point fields (id, timestamps, metadata, etc.)

name: String

Entity name (e.g., “TechCorp”)

is_a: Option<Uuid>

Reference to EntityType UUID (e.g., UUID of “Organization” type)

description: String

Entity description from LLM extraction

Implementations

impl Entity

pub const INDEX_FIELDS: &'static [&'static str]

Index fields to embed for vector search.

pub fn id_for(value: &str) -> Uuid

Deterministic, class-namespaced id for an Entity identity value.

Mirrors Python’s Entity.id_for(value) (identity_fields=["name"]): uuid5(NAMESPACE_OID, "Entity:<normalized_value>"). This is the single source of truth for “what id does the entity with this identity have”, used both when constructing entities and when looking them up from a raw string before an instance exists.

pub fn new( name: impl Into<String>, entity_type_id: Option<Uuid>, description: impl Into<String>, dataset_id: Option<Uuid>, ) -> Self

Create a new Entity.

Arguments

• name - Entity name
• entity_type_id - Optional reference to EntityType
• description - Entity description
• dataset_id - Dataset UUID

pub fn from_node( node_id: impl Into<String>, node_name: impl Into<String>, node_description: impl Into<String>, entity_type_id: Uuid, dataset_id: Option<Uuid>, ) -> Self

Create Entity from LLM-extracted Node.

Arguments

• node_id - Original node ID from LLM extraction
• node_name - Node name
• node_description - Node description
• entity_type_id - EntityType UUID
• dataset_id - Dataset UUID

pub fn get_embeddable_text(&self) -> String

Get the entity name (for embedding).

pub fn set_description(&mut self, description: impl Into<String>)

Update entity description.

pub fn set_entity_type(&mut self, entity_type_id: Uuid)

Update entity type reference.

Trait Implementations

impl Clone for Entity

fn clone(&self) -> Entity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Entity

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Entity

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl HasDataPoint for Entity

fn data_point(&self) -> &DataPoint

Borrow the embedded DataPoint of this container.

fn data_point_mut(&mut self) -> &mut DataPoint

Mutably borrow the embedded DataPoint of this container.

fn for_each_child_mut(&mut self, _visit: &mut dyn FnMut(&mut dyn HasDataPoint))

Visit every owned child that itself implements HasDataPoint. Default: no children. Override on container types whose fields own (rather than reference by Uuid) another HasDataPoint.

impl PartialEq for Entity

fn eq(&self, other: &Entity) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Entity

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Entity