Struct SchemaManager 

pub struct SchemaManager { /* private fields */ }

Manages table schemas in memory, backed by the _schema table.

Implementations

impl SchemaManager

pub fn load(db: &Database) -> Result<Self>

Load all schemas from the database’s _schema table.

pub fn get(&self, name: &str) -> Option<&TableSchema>

pub fn contains(&self, name: &str) -> bool

pub fn generation(&self) -> u64

pub fn register(&mut self, schema: TableSchema)

pub fn remove(&mut self, name: &str) -> Option<TableSchema>

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

pub fn all_schemas(&self) -> impl Iterator<Item = &TableSchema>

Returns all table schemas.

pub fn get_view(&self, name: &str) -> Option<&ViewDef>

pub fn register_view(&mut self, view: ViewDef)

pub fn remove_view(&mut self, name: &str) -> Option<ViewDef>

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

pub fn save_view(wtx: &mut WriteTxn<'_>, view: &ViewDef) -> Result<()>

pub fn delete_view(wtx: &mut WriteTxn<'_>, name: &str) -> Result<()>

pub fn ensure_views_table(wtx: &mut WriteTxn<'_>) -> Result<()>

pub fn child_fks_for(&self, parent: &str) -> Vec<(&str, &ForeignKeySchemaEntry)>

Find all FKs in other tables that reference parent table.

pub fn save_schema(wtx: &mut WriteTxn<'_>, schema: &TableSchema) -> Result<()>

Persist a schema to the _schema table (called within a write txn).

pub fn delete_schema(wtx: &mut WriteTxn<'_>, name: &str) -> Result<()>

Remove a schema from the _schema table (called within a write txn).

pub fn ensure_schema_table(wtx: &mut WriteTxn<'_>) -> Result<()>

Ensure the _schema table exists (called once per write).

pub fn save_snapshot(&self) -> SchemaSnapshot

pub fn restore_snapshot(&mut self, snap: SchemaSnapshot)