Struct MemDB 

pub struct MemDB { /* private fields */ }

Implementations

impl MemDB

pub fn query_with_scope( &self, scope: &MetadataCacheScope, sql: &str, ) -> KnowledgeResult<Vec<RowData>>

pub fn query_row_with_scope( &self, scope: &MetadataCacheScope, sql: &str, ) -> KnowledgeResult<RowData>

pub fn query_fields_with_scope( &self, scope: &MetadataCacheScope, sql: &str, params: &[DataField], ) -> KnowledgeResult<Vec<RowData>>

pub fn query_named_fields_with_scope( &self, scope: &MetadataCacheScope, sql: &str, params: &[DataField], ) -> KnowledgeResult<RowData>

pub fn query_fields( &self, sql: &str, params: &[DataField], ) -> KnowledgeResult<Vec<RowData>>

pub fn query_named_fields( &self, sql: &str, params: &[DataField], ) -> KnowledgeResult<RowData>

pub fn instance() -> Self

pub fn shared_pool(max_size: u32) -> AnyResult<Self>

Experimental: shared in-memory SQLite via URI with a pool size > 1. Requires SQLite compiled with shared-cache support.

pub fn new_file( path: &str, max_size: u32, flags: OpenFlags, ) -> KnowledgeResult<Self>

Create a MemDB backed by a file path with custom flags and pool size.

pub fn with_conn<T, F: FnOnce(&Connection) -> AnyResult<T>>( &self, f: F, ) -> AnyResult<T>

Execute a closure with a checked-out SQLite connection from the pool. Useful for one-time prepared statements or specialized operations.

pub fn table_create(&self, sql: &str) -> Result<()>

pub fn execute(&self, sql: &str) -> Result<()>

pub fn table_clean(&self, sql: &str) -> Result<()>

pub fn table_load( &self, sql: &str, csv_path: PathBuf, cols: Vec<usize>, max: usize, ) -> AnyResult<usize>

pub fn check_data( &self, table: &str, scope: (usize, usize), ) -> KnowledgeResult<usize>

pub fn global() -> Self

pub fn load_test() -> AnyResult<Self>

Trait Implementations

impl Clone for MemDB

fn clone(&self) -> MemDB

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl DBQuery for MemDB

fn query(&self, sql: &str) -> KnowledgeResult<Vec<RowData>>

fn query_row(&self, sql: &str) -> KnowledgeResult<RowData>

fn query_row_params<P: Params>( &self, sql: &str, params: P, ) -> KnowledgeResult<RowData>

fn query_row_tdos<P: Params>( &self, _sql: &str, _params: &[DataField; 2], ) -> KnowledgeResult<RowData>

impl Debug for MemDB

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

Formats the value using the given formatter.

impl From<MemDB> for MDBEnum

fn from(v: MemDB) -> MDBEnum

Converts to this type from the input type.

impl TryInto<MemDB> for MDBEnum

type Error = &'static str

The type returned in the event of a conversion error.

fn try_into(self) -> Result<MemDB, <Self as TryInto<MemDB>>::Error>

Performs the conversion.