If the DebitChecking program returns true—meaning that there was enough money to pay the bill—the program commits. If it returns false, then there wasn’t enough money to pay the bill and the transaction aborts. In both cases the PayCreditCard program updates the credit card table. But ...
In this article, we saw what idempotence means, what are the benefits of idempotence, and how it relates to REST. Even though the general meaning of idempotence is easy to understand, it can be quite tricky to consider all the subtleties like side effects and HTTP responses during the design...
The classic transaction processing response to this problem is to require that an application be stateless—meaning that no meaningful information is retained across transactions. However, stateless applications force a rather unnatural “string of beads” style of programming where an application must, ...
As used throughout this application, the word “may” is used in a permissive sense (i.e., meaning having the potential to), rather than the mandatory sense (i.e., meaning must). Similarly, the words “include,”“including,” and “includes” mean including, but not limited to. ...
The classic transaction processing response to this problem is to require that an application be stateless—meaning that no meaningful information is retained across transactions. However, stateless applications force a rather unnatural “string of beads” style of programming where an application must, ...