Wraps objects of the DBIDriver class to include connection options.
The purpose of this class is to store both the driver
and the connection options.
A database connection can be established
with a call to
dbConnect(), passing only that object
without additional arguments.
To prevent leakage of passwords and other credentials,
this class supports delayed evaluation.
All arguments can optionally be a function (callable without arguments).
In such a case, the function is evaluated transparently when connecting in
# Create a connector: cnr <- new("DBIConnector", .drv = RSQLite::SQLite(), .conn_args = list(dbname = ":memory:") ) cnr#> <DBIConnector><SQLiteDriver> #> Arguments: #> $dbname #>  ":memory:" #># Establish a connection through this connector: con <- dbConnect(cnr) con#> <SQLiteConnection> #> Path: :memory: #> Extensions: TRUE# Access the database through this connection: dbGetQuery(con, "SELECT 1 AS a")#> a #> 1 1dbDisconnect(con)