Trait PlanExecutor 

pub trait PlanExecutor<S>: Send + Sync
where
    S: SparkSessionBackend,
{
    // Required method
    fn execute_plan(
        session: &S,
        data: Vec<Vec<Value>>,
        schema: Vec<(String, String)>,
        plan: &[Value],
    ) -> Result<Box<dyn DataFrameBackend>, EngineError>;
}

Executes a logical plan (JSON list of ops) and returns a DataFrame.

The generic type parameter S is a backend-specific SparkSessionBackend implementation (e.g. the Polars-backed SparkSession in robin-sparkless-polars). Backends implement this trait to expose plan execution in terms of engine-agnostic traits and EngineError.

Required Methods

fn execute_plan( session: &S, data: Vec<Vec<Value>>, schema: Vec<(String, String)>, plan: &[Value], ) -> Result<Box<dyn DataFrameBackend>, EngineError>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl PlanExecutor<SparkSession> for PolarsPlanExecutor

fn execute_plan( session: &SparkSession, data: Vec<Vec<Value>>, schema: Vec<(String, String)>, plan: &[Value], ) -> Result<Box<dyn DataFrameBackend>, EngineError>

Implementors