Struct ResolvedCatalogProviderList 

struct ResolvedCatalogProviderList {
    cached_catalogs: HashMap<String, Arc<dyn CatalogProvider>>,
}

A catalog provider list that looks up catalogs in a cache

Instances are created by the AsyncCatalogProviderList::resolve method

Fields

cached_catalogs: HashMap<String, Arc<dyn CatalogProvider>>

Trait Implementations

impl CatalogProviderList for ResolvedCatalogProviderList

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 ResolvedCatalogProviderList

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

Formats the value using the given formatter.