Struct KeyspaceMeta

pub struct KeyspaceMeta<'a>(/* private fields */);

A snapshot of the schema’s metadata.

Implementations

impl<'a> KeyspaceMeta<'a>

pub fn aggregrates_iter(&self) -> AggregateIterator<'a>

Iterator over the aggregates in this keyspace

pub fn fields_iter(&self) -> FieldIterator<'a>

Iterator over the field in this keyspace

pub fn table_by_name(&self, name: &str) -> Option<TableMeta<'a>>

Gets the table metadata for the provided table name.

pub fn user_type_by_name(&self, name: &str) -> Option<ConstDataType<'a>>

Gets the data type for the provided type name.

pub fn get_function_by_name( &self, name: &str, arguments: Vec<&str>, ) -> Option<FunctionMeta<'a>>

Gets the function metadata for the provided function name.

pub fn aggregate_by_name( &self, name: &str, arguments: Vec<&str>, ) -> Option<AggregateMeta<'a>>

Gets the aggregate metadata for the provided aggregate name.

pub fn table_iter(&self) -> TableIterator<'a>

Iterator over the tables in this keyspaces

pub fn function_iter(&self) -> FunctionIterator<'a>

Iterator over the functions in this keyspaces

pub fn user_type_iter(&self) -> UserTypeIterator<'a>

Iterator over the UDTs in this keyspaces

pub fn name(&self) -> String

Gets the name of the keyspace.

pub fn field_by_name(&self, name: &str) -> Option<MetadataFieldValue<'a>>

Gets a metadata field for the provided name. Metadata fields allow direct access to the column data found in the underlying “keyspaces” metadata table.

Trait Implementations

impl<'a> Debug for KeyspaceMeta<'a>

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

Formats the value using the given formatter.