AsyncNativeOdbcConnection class
Methods
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asyncCancel(int asyncRequestId)
→ Future<bool>
-
Best-effort cancellation for async request.
inherited
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asyncFree(int asyncRequestId)
→ Future<bool>
-
Frees async request resources.
inherited
-
asyncGetResult(int asyncRequestId, {int? maxBufferBytes})
→ Future<Uint8List?>
-
Retrieves binary result for a completed async request.
inherited
-
asyncPoll(int asyncRequestId)
→ Future<int>
-
Polls async request status.
inherited
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beginTransaction(int connectionId, int isolationLevel, {int savepointDialect = 0, int accessMode = 0, int lockTimeoutMs = 0})
→ Future<int>
-
Starts a transaction in the worker for
connectionId with
isolationLevel. Returns the transaction ID on success.
inherited
-
bulkInsertArray(int connectionId, String table, List<String> columns, Uint8List dataBuffer, int rowCount)
→ Future<int>
-
Performs bulk insert on
connectionId: table, columns, dataBuffer,
rowCount. Returns rows inserted, or negative on error.
inherited
-
bulkInsertParallel(int poolId, String table, List<String> columns, Uint8List dataBuffer, int parallelism)
→ Future<int>
-
Performs parallel bulk insert on
poolId. Returns rows inserted,
or negative value on error.
inherited
-
cancelStatement(int stmtId)
→ Future<bool>
-
Requests cancellation of prepared statement
stmtId in the worker.
inherited
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catalogColumns(int connectionId, String table)
→ Future<Uint8List?>
-
Returns catalog columns for
table on connectionId. Binary result or
null on error.
inherited
-
catalogForeignKeys(int connectionId, String table)
→ Future<Uint8List?>
-
inherited
-
catalogIndexes(int connectionId, String table)
→ Future<Uint8List?>
-
inherited
-
catalogPrimaryKeys(int connectionId, String table)
→ Future<Uint8List?>
-
inherited
-
catalogTables(int connectionId, {String catalog = '', String schema = ''})
→ Future<Uint8List?>
-
Returns catalog tables for
connectionId (optional catalog and
schema). Returns binary result or null on error.
inherited
-
catalogTypeInfo(int connectionId)
→ Future<Uint8List?>
-
Returns type info for
connectionId. Binary result or null on error.
inherited
-
clearAllStatements()
→ Future<int>
-
inherited
-
clearAuditEvents()
→ Future<bool>
-
Clears in-memory audit events in the worker.
inherited
-
clearMetadataCache()
→ Future<bool>
-
Clears metadata cache entries in the worker.
inherited
-
clearStatementCache()
→ Future<bool>
-
Clears the prepared statement cache in the worker.
inherited
-
closeStatement(int stmtId)
→ Future<bool>
-
Closes the prepared statement
stmtId in the worker.
inherited
-
commitTransaction(int txnId)
→ Future<bool>
-
Commits the transaction identified by
txnId in the worker.
inherited
-
connect(String connectionString, {int timeoutMs = 0})
→ Future<int>
-
Opens a connection in the worker using
connectionString.
inherited
-
createSavepoint(int txnId, String name)
→ Future<bool>
-
Creates a savepoint
name within the transaction txnId in the worker.
inherited
-
detectDriver(String connectionString)
→ Future<String?>
-
Detects the database driver from a connection string.
inherited
-
disconnect(int connectionId)
→ Future<bool>
-
Closes the connection identified by
connectionId in the worker.
inherited
-
dispose()
→ void
-
Shuts down the worker isolate and releases resources.
inherited
-
executeAsync(int connectionId, String sql, {Duration pollInterval = const Duration(milliseconds: 10), Duration? timeout, int? maxBufferBytes})
→ Future<Uint8List?>
-
Executes
sql in non-blocking mode using native async request lifecycle.
inherited
-
executeAsyncStart(int connectionId, String sql)
→ Future<int>
-
Starts non-blocking query execution in native layer.
inherited
-
executeAsyncStartParams(int connectionId, String sql, Uint8List? serializedParams, {ResultEncoding resultEncoding = ResultEncoding.rowMajor})
→ Future<int>
-
Starts non-blocking parameterized execution in native layer.
inherited
-
executePrepared(int stmtId, List<ParamValue>? params, int timeoutOverrideMs, int fetchSize, {int? maxBufferBytes})
→ Future<Uint8List?>
-
Executes a prepared statement
stmtId in the worker with optional
params. Returns the binary result, or null on error.
inherited
-
executePreparedNamed(int stmtId, Map<String, Object?> namedParams, int timeoutOverrideMs, int fetchSize, {int? maxBufferBytes})
→ Future<Uint8List?>
-
Executes a prepared statement
stmtId using named parameters.
inherited
-
executeQueryMulti(int connectionId, String sql, {int? maxBufferBytes})
→ Future<Uint8List?>
-
Executes
sql on connectionId for multi-result sets in the worker.
When maxBufferBytes is set, caps the result buffer size.
Returns the binary result, or null on error.
inherited
-
executeQueryMultiParams(int connectionId, String sql, Uint8List? paramsBuffer, {int? maxBufferBytes})
→ Future<Uint8List?>
-
Executes a parameterised multi-result batch in the worker.
inherited
-
executeQueryNamed(int connectionId, String sql, Map<String, Object?> namedParams, {int? maxBufferBytes})
→ Future<Uint8List?>
-
Executes
sql on connectionId using named parameters.
inherited
-
executeQueryParamBuffer(int connectionId, String sql, Uint8List? paramBuffer, {int? maxBufferBytes, Duration? timeout, ResultEncoding resultEncoding = ResultEncoding.rowMajor})
→ Future<Uint8List?>
-
Executes a parameterised query with a pre-serialised buffer (legacy v0 or
DRT1 directed parameters).
inherited
-
executeQueryParams(int connectionId, String sql, List<ParamValue> params, {int? maxBufferBytes, Duration? timeout, ResultEncoding resultEncoding = ResultEncoding.rowMajor})
→ Future<Uint8List?>
-
Executes
sql on connectionId with params in the worker.
inherited
-
failWorkerForTesting(int workerIndex)
→ void
-
inherited
-
getAuditEventsJson({int limit = 0})
→ Future<String?>
-
Returns audit events as JSON payload, or null on failure.
inherited
-
getAuditStatusJson()
→ Future<String?>
-
Returns audit status as JSON payload, or null on failure.
inherited
-
getCacheMetrics()
→ Future<PreparedStatementMetrics?>
-
Returns prepared statement cache metrics from the worker.
inherited
-
getConnectionDbmsInfoJson(int connectionId)
→ Future<String?>
-
Returns live DBMS introspection payload as JSON, or null on failure.
inherited
-
getDriverCapabilitiesJson(String connectionString)
→ Future<String?>
-
Returns driver capabilities payload as JSON, or null on failure.
inherited
-
getError()
→ Future<String>
-
Returns the last error message from the worker (plain text).
inherited
-
getMetadataCacheStatsJson()
→ Future<String?>
-
Returns metadata cache stats as JSON payload, or null on failure.
inherited
-
getMetrics()
→ Future<OdbcMetrics?>
-
Returns ODBC metrics from the worker (query count, errors, latency, etc.).
inherited
-
getStructuredError()
→ Future<StructuredError?>
-
Returns the last structured error (message, SQLSTATE, native code), or
null if there is no error.
inherited
-
getStructuredErrorForConnection(int connectionId)
→ Future<StructuredError?>
-
Returns the last structured error for
connectionId, or null when
there is no connection-scoped error information.
inherited
-
getVersion()
→ Future<Map<String, String>?>
-
Returns engine version (api + abi) for compatibility checks.
inherited
-
getWorkerPoolStats()
→ AsyncWorkerPoolStats
-
Returns a Dart-side snapshot of worker pool routing and health counters.
inherited
-
initialize()
→ Future<bool>
-
Initializes the worker isolate and ODBC environment.
inherited
-
metadataCacheEnable({required int maxEntries, required int ttlSeconds})
→ Future<bool>
-
Enables metadata cache in the worker.
inherited
-
noSuchMethod(Invocation invocation)
→ dynamic
-
Invoked when a nonexistent method or property is accessed.
inherited
-
poolClose(int poolId)
→ Future<bool>
-
Closes pool
poolId in the worker.
inherited
-
poolCreate(String connectionString, int maxSize, {PoolOptions? options})
→ Future<int>
-
Creates a connection pool in the worker. Returns pool ID on success.
inherited
-
poolGetConnection(int poolId)
→ Future<int>
-
Obtains a connection from pool
poolId. Returns connection ID on success.
inherited
-
poolGetState(int poolId)
→ Future<({int idle, int size})?>
-
Returns the current state (size, idle) of pool
poolId,
or null on error.
inherited
-
poolGetStateJson(int poolId)
→ Future<String?>
-
Returns detailed pool state payload as JSON, or null on failure.
inherited
-
poolHealthCheck(int poolId)
→ Future<bool>
-
Runs a health check on pool
poolId.
inherited
-
poolReleaseConnection(int connectionId)
→ Future<bool>
-
Returns
connectionId to its pool.
inherited
-
poolSetSize(int poolId, int newMaxSize)
→ Future<bool>
-
Resizes pool
poolId to newMaxSize in the worker.
inherited
-
prepare(int connectionId, String sql, {int timeoutMs = 0})
→ Future<int>
-
Prepares
sql on connectionId in the worker.
inherited
-
prepareNamed(int connectionId, String sql, {int timeoutMs = 0})
→ Future<int>
-
Prepares
sql with named parameters on connectionId in the worker.
inherited
-
recoverWorker()
→ Future<void>
-
Disposes the current worker and re-initializes a fresh one.
inherited
-
releaseSavepoint(int txnId, String name)
→ Future<bool>
-
Releases savepoint
name in transaction txnId.
Transaction stays active.
inherited
-
rollbackToSavepoint(int txnId, String name)
→ Future<bool>
-
Rolls back to savepoint
name in transaction txnId.
Transaction stays active.
inherited
-
rollbackTransaction(int txnId)
→ Future<bool>
-
Rolls back the transaction identified by
txnId in the worker.
inherited
-
setAuditEnabled({required bool enabled})
→ Future<bool>
-
Enables/disables native audit event collection in the worker.
inherited
-
setLogLevel(int level)
→ Future<void>
-
Sets native engine log verbosity in the worker.
inherited
-
streamAsync(int connectionId, String sql, {int fetchSize = 1000, int chunkSize = 64 * 1024, Duration pollInterval = const Duration(milliseconds: 10), int? maxBufferBytes, int resultEncodingWire = 0, bool lazyStrings = false})
→ Stream<ParsedRowBuffer>
-
Runs
sql using native async stream lifecycle:
stream_start_async -> stream_poll_async -> stream_fetch -> stream_close.
inherited
-
streamCancel(int streamId)
→ Future<bool>
-
Cancels an active low-level native stream in the worker.
inherited
-
streamClose(int streamId)
→ Future<bool>
-
Closes an active stream in the worker. Public counterpart of
_streamClose for the same reason as streamFetch. New in v3.3.0.
inherited
-
streamFetch(int streamId)
→ Future<StreamFetchResponse>
-
Fetches the next chunk from an active stream in the worker.
Public counterpart of
_streamFetch, used by callers that drive the
stream lifecycle themselves (e.g. streamQueryMulti). New in v3.3.0.
inherited
-
streamMultiStartAsync(int connectionId, String sql, {int fetchSize = 1000, int chunkSize = 64 * 1024, int resultEncodingWire = 0})
→ Future<int>
-
Async variant of
streamMultiStartBatched. Combine with
streamPollAsync.
inherited
-
streamMultiStartBatched(int connectionId, String sql, {int fetchSize = 1000, int chunkSize = 64 * 1024, int resultEncodingWire = 0})
→ Future<int>
-
Starts a streaming multi-result batch (M8 in v3.3.0). The chunks
emitted by
streamFetch follow the framed wire format documented in
MultiResultStreamDecoder. Returns 0 when the loaded native library
does not export the FFI.
inherited
-
streamPollAsync(int streamId)
→ Future<int>
-
Polls low-level async stream status.
inherited
-
streamQuery(int connectionId, String sql, {int chunkSize = 1000, int? maxBufferBytes})
→ Stream<ParsedRowBuffer>
-
Runs
sql in the worker using native batched streaming.
inherited
-
streamQueryBatched(int connectionId, String sql, {int fetchSize = 1000, int chunkSize = 64 * 1024, int? maxBufferBytes, int resultEncodingWire = 0, bool lazyStrings = false})
→ Stream<ParsedRowBuffer>
-
Runs
sql in the worker using native batched streaming.
inherited
-
streamQueryBuffer(int connectionId, String sql, {int chunkSize = 1000, int? maxBufferBytes, bool lazyStrings = false})
→ Stream<ParsedRowBuffer>
-
Legacy buffer-mode streaming via
odbc_stream_start. Materialises the
full result in the worker before yielding a single parsed chunk.
inherited
-
streamQueryColumnarBatched(int connectionId, String sql, {int fetchSize = 1000, int chunkSize = 64 * 1024, int? maxBufferBytes, bool lazyStrings = false, ResultEncoding resultEncoding = ResultEncoding.columnar})
→ Stream<TypedColumnarResult>
-
Batched columnar streaming with direct TypedColumnarResult decode.
inherited
-
streamStartAsync(int connectionId, String sql, {int fetchSize = 1000, int chunkSize = 64 * 1024, int resultEncodingWire = 0})
→ Future<int>
-
Starts low-level async stream lifecycle and returns stream ID.
inherited
-
toString()
→ String
-
A string representation of this object.
inherited
-
validateConnectionString(String connectionString)
→ Future<String?>
-
Validates connection string format without opening a connection.
inherited
