Struct InMemoryEngine 

pub struct InMemoryEngine { /* private fields */ }

In-memory query engine

Implementations

impl InMemoryEngine

pub fn new() -> Self

Create empty engine

pub fn with_data(data: HashMap<String, Vec<Binding>>) -> Self

Create with data

Trait Implementations

impl Clone for InMemoryEngine

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for InMemoryEngine

fn default() -> Self

Returns the “default value” for a type.

impl QueryEngine for InMemoryEngine

fn name(&self) -> &str

Engine name

fn execute( &self, op: Op, ctx: &QueryContext, ) -> Result<QueryResult, EngineError>

Execute an Op tree

fn capabilities(&self) -> EngineCapabilities

Get engine capabilities

fn optimize(&self, op: Op, level: u8) -> Op

Optimize an Op tree