Struct spacetimedb::execution_context::ExecutionContext

pub struct ExecutionContext<'a> { /* private fields */ }

Represents the context under which a database runtime method is executed. In particular it provides details about the currently executing txn to runtime operations. More generally it acts as a container for information that database operations may require to function correctly.

Implementations

impl<'a> ExecutionContext<'a>

pub fn reducer(database: Address, name: &'a str) -> Self

Returns an ExecutionContext for a reducer transaction.

pub fn sql(database: Address) -> Self

Returns an ExecutionContext for a one-off sql query.

pub fn subscribe(database: Address) -> Self

Returns an ExecutionContext for an initial subscribe call.

pub fn incremental_update(database: Address) -> Self

Returns an ExecutionContext for a subscription update.

pub fn internal(database: Address) -> Self

Returns an ExecutionContext for an internal database operation.

pub fn database(&self) -> Address

Returns the address of the database on which we are operating.

pub fn reducer_name(&self) -> &str

If this is a reducer context, returns the name of the reducer.

pub fn workload(&self) -> WorkloadType

Returns the type of workload that is being executed.

Trait Implementations

impl<'a> Default for ExecutionContext<'a>

fn default() -> ExecutionContext<'a>

Returns the “default value” for a type.