| Return the transaction attribute, given this set of attributes
attached to a method or class.
Protected rather than private as subclasses may want to customize
how this is done: for example, returning a TransactionAttribute
affected by the values of other attributes.
This implementation takes into account RollbackRuleAttributes,
if the TransactionAttribute is a RuleBasedTransactionAttribute.
Parameters: atts - attributes attached to a method or class (may be null ) TransactionAttribute the corresponding transaction attribute,or null if none was found |