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StorageBackend

sqlite_graphrag::storage::backend

Trait StorageBackend 

Source 
pub trait StorageBackend {
    // Required methods
    fn execute_sql(
        &self,
        sql: &str,
        params: &[&dyn ToSql],
    ) -> Result<usize, AppError>;
    fn query_one<T, F>(
        &self,
        sql: &str,
        params: &[&dyn ToSql],
        f: F,
    ) -> Result<Option<T>, AppError>
       where F: FnOnce(&Row<'_>) -> Result<T, Error>;
    fn as_connection(&self) -> &Connection;
}
Expand description

Backend-agnostic storage abstraction.

Phase 1: wraps rusqlite::Connection without functional change. Phase 2: will be implemented for libsql::Connection with embedded replicas.

Required Methods§

Source

fn execute_sql( &self, sql: &str, params: &[&dyn ToSql], ) -> Result<usize, AppError>

Execute a SQL statement and return the number of affected rows.

Source

fn query_one<T, F>( &self, sql: &str, params: &[&dyn ToSql], f: F, ) -> Result<Option<T>, AppError>
where F: FnOnce(&Row<'_>) -> Result<T, Error>,

Query a single row and map it with the provided closure.

Source

fn as_connection(&self) -> &Connection

Returns a reference to the underlying rusqlite Connection. Phase 1 escape hatch — will be removed when full migration is complete.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§