Struct MemoryCatalogProviderList 

pub struct MemoryCatalogProviderList {
    pub catalogs: DashMap<String, Arc<dyn CatalogProvider>>,
}

Simple in-memory list of catalogs

Fields

catalogs: DashMap<String, Arc<dyn CatalogProvider>>

Collection of catalogs containing schemas and ultimately TableProviders

Implementations

impl MemoryCatalogProviderList

pub fn new() -> Self

Instantiates a new MemoryCatalogProviderList with an empty collection of catalogs

Trait Implementations

impl CatalogProviderList for MemoryCatalogProviderList

fn as_any(&self) -> &dyn Any

Returns the catalog list as Any so that it can be downcast to a specific implementation.

fn register_catalog( &self, name: String, catalog: Arc<dyn CatalogProvider>, ) -> Option<Arc<dyn CatalogProvider>>

Adds a new catalog to this catalog list If a catalog of the same name existed before, it is replaced in the list and returned.

fn catalog_names(&self) -> Vec<String>

Retrieves the list of available catalog names

fn catalog(&self, name: &str) -> Option<Arc<dyn CatalogProvider>>

Retrieves a specific catalog by name, provided it exists.

impl Debug for MemoryCatalogProviderList

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

Formats the value using the given formatter.

impl Default for MemoryCatalogProviderList

fn default() -> Self

Returns the “default value” for a type.