This method is called once after all form handler processing is completed. It implements the following transactional steps:
Commit or roll back any transaction that was created in the
beforeSetmethod.If the transaction was already in place before the
beforeSetmethod was called, theafterSetmethod does not end the transaction automatically; this is the application’s responsibility.If a transaction lock was acquired in the
beforeSetmethod, release the lock.
If you are extending a Core Commerce form handler and your code makes its own decisions about errors, you can mark a transaction for rollback by calling the setTransactionToRollbackOnly method.
For more information on PurchaseProcessFormHandler and its subclasses, you can examine the source files at <ATG11dir>\DCS\src\Java\atg\commerce\order\purchase and refer to the ATG Platform API Reference.

