When a DSResult-class object is returned on aggregation or assignment operation,
the raw result can be accessed asynchronously, allowing parallelization of DataSHIELD calls
over multpile servers. The returned named list of logicals will specify if asynchronicity is supported for:
session operation ('session'), aggregation operation ('aggregate'), table assignment operation ('assignTable'),
resource assignment operation ('assignResource') and expression assignment operation ('assignExpr').
Arguments
- conn
An object that inherits from
DSConnection-class.
Value
A named list of logicals indicating if asynchronicity is supported for session, aggregation and assignment operations.
See also
Other DSConnection generics:
DSConnection-class,
dsAggregate(),
dsAssignExpr(),
dsAssignResource(),
dsAssignTable(),
dsDisconnect(),
dsGetInfo(),
dsHasResource(),
dsHasSession(),
dsHasTable(),
dsKeepAlive(),
dsListMethods(),
dsListPackages(),
dsListProfiles(),
dsListResources(),
dsListSymbols(),
dsListTables(),
dsListWorkspaces(),
dsRestoreWorkspace(),
dsRmSymbol(),
dsRmWorkspace(),
dsSaveWorkspace(),
dsSession()
Examples
if (FALSE) { # \dontrun{
con <- dsConnect(DSOpal::Opal(), "server1",
username = "dsuser", password = "password", url = "https://opal-demo.obiba.org")
dsIsAsync(con)
dsDisconnect(con)
} # }