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Database

Struct Database 

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pub struct Database { /* private fields */ }
Expand description

A graph database instance.

Owns the catalog (schema), columnar storage, transaction manager, and WAL. Create connections via Database::connect to execute Cypher queries and DDL.

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impl Database

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pub fn in_memory() -> Self

Create a new in-memory database with empty catalog and storage.

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pub fn open(path: &Path) -> KyuResult<Self>

Open a persistent database at the given directory path. Creates the directory if it doesn’t exist. Loads catalog and storage from checkpoint, then replays WAL for DDL recovery.

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pub fn register_extension(&mut self, ext: Box<dyn Extension>)

Register an extension. Must be called before creating connections.

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pub fn connect(&self) -> Connection

Create a connection to this database.

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pub fn checkpoint(&self) -> KyuResult<u64>

Manually trigger a checkpoint.

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pub fn storage(&self) -> &Arc<RwLock<NodeGroupStorage>>

Get a reference to the underlying storage (for direct insertion).

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pub fn catalog(&self) -> &Arc<Catalog>

Get a reference to the underlying catalog.

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pub fn txn_manager(&self) -> &Arc<TransactionManager>

Get a reference to the transaction manager.

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pub fn wal(&self) -> &Arc<Wal>

Get a reference to the WAL.

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impl Drop for Database

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fn drop(&mut self)

Executes the destructor for this type. Read more

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