onCreate static method
Implementation
@visibleForTesting
static Future<void> onCreate(Database db, int version) async {
await db.execute(
'create table $_cacheTable ('
'$_id integer primary key autoincrement, '
'$_cacheKey text not null, '
'$_params text, '
'$_dataType integer not null, '
'$_cacheData text, '
'$_updatedAt integer not null, '
'$_lastUsedAt integer not null, '
'$_useCount integer not null)',
);
}