LazyDatabase class

A special database executor that delegates work to another QueryExecutor. The other executor is lazily opened by a DatabaseOpener.

Inheritance

• Object
• QueryExecutor
• LazyDatabase

Constructors

LazyDatabase(DatabaseOpener opener, {SqlDialect dialect = SqlDialect.sqlite})

Declares a LazyDatabase that will run opener when the database is first requested to be opened. You must specify the same dialect as the underlying database has

Properties

dialect → SqlDialect

The SqlDialect to use for this database engine.

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

opener → DatabaseOpener

The function that will open the database when this LazyDatabase gets opened for the first time.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

beginTransaction() → TransactionExecutor

Starts a TransactionExecutor.

override

close() → Future<void>

Closes this database connection and releases all resources associated with it. Implementations should also handle close calls in a state where the database isn't open.

override

ensureOpen(QueryExecutorUser user) → Future<bool>

Opens the executor, if it has not yet been opened.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

runBatched(BatchedStatements statements) → Future<void>

Prepares and runs statements.

override

runCustom(String statement, [List<Object?>? args]) → Future<void>

Runs a custom SQL statement without any variables. The result of that statement will be ignored.

override

runDelete(String statement, List<Object?> args) → Future<int>

Runs an delete statement and returns how many rows where affected.

override

runInsert(String statement, List<Object?> args) → Future<int>

Runs an insert statement with the given variables. Returns the row id or the auto_increment id of the inserted row.

override

runSelect(String statement, List<Object?> args) → Future<List<Map<String, Object?>>>

Runs a select statement with the given variables and returns the raw results.

override

runUpdate(String statement, List<Object?> args) → Future<int>

Runs an update statement with the given variables and returns how many rows where affected.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited