Struct SchemaRegistry 

pub struct SchemaRegistry { /* private fields */ }

Registry of attached databases for a connection.

The main and temp schemas are always present and cannot be detached. Up to SQLITE_MAX_ATTACHED additional databases can be attached.

Implementations

impl SchemaRegistry

pub fn new() -> Self

Create a new registry with only main and temp.

pub fn attach(&mut self, schema: String, path: String) -> Result<()>

Attach a database file with the given schema name.

Errors

Returns error if the name is already in use, or if the maximum number of attached databases would be exceeded (invariant #8).

pub fn detach(&mut self, schema: &str) -> Result<()>

Detach a database by schema name.

Errors

Returns error if the schema name is not found or is reserved.

pub fn find(&self, schema: &str) -> Option<&AttachedDb>

Look up an attached database by schema name.

Returns None for main/temp (they are implicit) and for unknown names.

pub fn count(&self) -> usize

Number of attached databases (not counting main/temp).

pub fn is_valid_schema(&self, schema: &str) -> bool

Resolve a schema-qualified name. Returns true if the schema is main, temp, or a currently attached database.

pub fn all_schemas(&self) -> Vec<&str>

List all schema names (including main and temp).

Trait Implementations

impl Debug for SchemaRegistry

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

Formats the value using the given formatter.

impl Default for SchemaRegistry

fn default() -> Self

Returns the “default value” for a type.