def transaction_open?(name = nil)
if name.nil?
Transaction::Simple.debug_io << "Transaction [#{(@__transaction_checkpoint__.nil?) ? 'closed' : 'open'}]\n" unless Transaction::Simple.debug_io.nil?
return (not @__transaction_checkpoint__.nil?)
else
Transaction::Simple.debug_io << "Transaction(#{name.inspect}) [#{(@__transaction_checkpoint__.nil?) ? 'closed' : 'open'}]\n" unless Transaction::Simple.debug_io.nil?
return ((not @__transaction_checkpoint__.nil?) and @__transaction_names__.include?(name))
end
end