Struct Lakehouse Context &nbsp; Copy item path

impl LakehouseContext

pub async fn from_env() -> Result<Arc<LakehouseContext>, Error>

Reads MICROMEGAS_SQL_CONNECTION_STRING and MICROMEGAS_OBJECT_STORE_URI, connects to the data lake, runs lakehouse migrations, and creates the runtime environment.

pub fn new( lake: Arc<DataLakeConnection>, runtime: Arc<RuntimeEnv>, ) -> LakehouseContext

Creates a new lakehouse context with default-sized metadata and file caches.

pub fn with_caches( lake: Arc<DataLakeConnection>, runtime: Arc<RuntimeEnv>, metadata_cache: Arc<MetadataCache>, file_cache: Arc<FileCache>, ) -> LakehouseContext

Creates a new lakehouse context with custom metadata and file caches.

pub fn lake(&self) -> &Arc<DataLakeConnection>

Returns the data lake connection.

pub fn metadata_cache(&self) -> &Arc<MetadataCache>

Returns the metadata cache.

pub fn file_cache(&self) -> &Arc<FileCache>

Returns the file cache.

pub fn runtime(&self) -> &Arc<RuntimeEnv>

Returns the DataFusion runtime environment.

pub fn reader_factory(&self) -> &Arc<ReaderFactory>

Returns the shared ReaderFactory.

Trait Implementations§

impl Clone for LakehouseContext

fn clone(&self) -> LakehouseContext

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for LakehouseContext

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl !UnwindSafe for LakehouseContext

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> DynClone for T
where T: Clone,

fn __clone_box(&self, _: Private) -> *mut ()

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> FromRef<T> for T
where T: Clone,

fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more