Struct entity_inmemory::InmemoryDatabase

pub struct InmemoryDatabase { /* fields omitted */ }

Represents an in-memory database that performs synchronous insertion, retrieval, and removal. If the feature serde is enabled, this database can be serialized and deserialized.

Implementations

impl InmemoryDatabase

pub fn new() -> Self

Creates a new instance of an in-memory database

impl InmemoryDatabase

pub fn ids(&self) -> HashSet<Id>

Returns ids of all ents stored in the database

pub fn has_id(&self, id: Id) -> bool

Returns true if database contains the provided id

pub fn ids_for_type(&self, type: &str) -> HashSet<Id>

Returns ids of all ents for the given type

Trait Implementations

impl Database for InmemoryDatabase

fn get_all(&self, ids: Vec<Id>) -> DatabaseResult<Vec<Box<dyn Ent>>>

Performs a retrieval of multiple ents of any type

fn find_all(&self, query: Query) -> DatabaseResult<Vec<Box<dyn Ent>>>

Finds all generic ents that match the query

fn get(&self, id: Id) -> DatabaseResult<Option<Box<dyn Ent>>>

Retrieves a copy of a single, generic ent with the corresponding id

fn remove(&self, id: Id) -> DatabaseResult<bool>

Removes the ent with the corresponding id, triggering edge processing for all disconnected ents. Returns a boolean indicating if an ent was removed.

fn insert(&self, ent: Box<dyn Ent>) -> DatabaseResult<Id>

Inserts a new ent using its id as the primary index, overwriting any ent with a matching id. If the ent’s id is set to the ephemeral id (of 0), a unique id will be assigned to the ent prior to being inserted.

impl Default for InmemoryDatabase

fn default() -> Self

Creates a new, empty database entry