def abort_transaction(name = nil)
if @__transaction_checkpoint__.nil?
raise TransactionError, Messages[:cannot_abort_no_transaction]
end
if @__transaction_block__ and name
nix = @__transaction_names__.index(name) + 1
if nix < @__transaction_block__
raise TransactionError, Messages[:cannot_abort_transaction_before_block]
end
raise TransactionAborted if @__transaction_block__ == nix
end
raise TransactionAborted if @__transaction_block__ == @__transaction_level__
if name.nil?
__abort_transaction(name)
else
unless @__transaction_names__.include?(name)
raise TransactionError, Messages[:cannot_abort_named_transaction] % name.inspect
end
__abort_transaction(name) while @__transaction_names__.include?(name)
end
self
end