Struct SchemaManager 

pub struct SchemaManager { /* private fields */ }

Implementations

impl SchemaManager

pub async fn load(path: impl AsRef<Path>) -> Result<SchemaManager, Error>

pub async fn load_from_store( store: Arc<dyn ObjectStore>, path: &Path, ) -> Result<SchemaManager, Error>

pub async fn save(&self) -> Result<(), Error>

pub fn path(&self) -> &Path

pub fn schema(&self) -> Arc<Schema>

pub fn generated_column_name(expr: &str) -> String

Generate a consistent internal column name for an expression index. Uses a hash suffix to ensure uniqueness for different expressions that might sanitize to the same string (e.g., “a+b” and “a-b” both become “a_b”).

IMPORTANT: Uses FNV-1a hash which is stable across Rust versions and platforms. DefaultHasher is not guaranteed to be stable and could break persistent data if the hash changes after a compiler upgrade.

pub fn replace_schema(&self, new_schema: Schema)

pub fn next_label_id(&self) -> u16

pub fn next_type_id(&self) -> u32

pub fn add_label(&self, name: &str) -> Result<u16, Error>

pub fn add_edge_type( &self, name: &str, src_labels: Vec<String>, dst_labels: Vec<String>, ) -> Result<u32, Error>

pub fn get_or_assign_edge_type_id(&self, type_name: &str) -> u32

Delegates to Schema::get_or_assign_edge_type_id.

pub fn edge_type_name_by_id_unified(&self, type_id: u32) -> Option<String>

Delegates to Schema::edge_type_name_by_id_unified.

pub fn add_property( &self, label_or_type: &str, prop_name: &str, data_type: DataType, nullable: bool, ) -> Result<(), Error>

pub fn add_generated_property( &self, label_or_type: &str, prop_name: &str, data_type: DataType, expr: String, ) -> Result<(), Error>

pub fn add_index(&self, index_def: IndexDefinition) -> Result<(), Error>

pub fn get_index(&self, name: &str) -> Option<IndexDefinition>

pub fn update_index_metadata( &self, index_name: &str, f: impl FnOnce(&mut IndexMetadata), ) -> Result<(), Error>

Updates the lifecycle metadata for an index by name.

The closure receives a mutable reference to the index’s IndexMetadata, allowing callers to update status, timestamps, etc.

pub fn remove_index(&self, name: &str) -> Result<(), Error>

pub fn add_constraint(&self, constraint: Constraint) -> Result<(), Error>

pub fn drop_constraint(&self, name: &str, if_exists: bool) -> Result<(), Error>

pub fn drop_property( &self, label_or_type: &str, prop_name: &str, ) -> Result<(), Error>

pub fn rename_property( &self, label_or_type: &str, old_name: &str, new_name: &str, ) -> Result<(), Error>

pub fn drop_label(&self, name: &str, if_exists: bool) -> Result<(), Error>

pub fn drop_edge_type(&self, name: &str, if_exists: bool) -> Result<(), Error>