Lack of a direct high-level method for recovering the transaction counter value

[pterr]

The calypso.card.card.CalypsoCard interface doesn't offer a method for directly retrieving the current value of a card's transaction counter: this could be particularly useful for Basic-type products with a limited lifetime, in order to know the number of possible remaining transactions.

Currently, it is possible to retrieve the transaction counter value only if a secure session has just been closed, by parsing the audit data using calypso.card.transaction.TransactionManager.getTransactionAuditData()

→ CNA thus plan to add in a future evolution of the Calypso Card API, a high-level method for directly recovering the transaction counter value.