[R] Detect expired RSQLiteConnection?

Duncan Murdoch murdoch.duncan at gmail.com
Tue Sep 2 14:32:58 CEST 2014

Is there a test for an expired RSQLiteConnection?  For example, if I run

f <- tempfile()
con <- dbConnect(SQLite(), f)

then I get

> con
<Expired SQLiteConnection: DBI CON (11737, 2)>

and most operations using it give errors. (In my case I have a
persistent connection object, but if I save the workspace and then
reload it, I get the expired connection.) I'd like to detect this case.
 Do I need to use try(), or parse the result of printing it?

Duncan Murdoch

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