Db and annotations
JTX supports multiple resource types, but its most efficient with single resource type, such as relational database. Therefore, there is whole layer build on top of generic JTX classes that serves just to simplify use and usage of transaction over databases.
But that is not all. Transactions, in general, are a perfect example of
scattered logic, that can be encapsulated via aspects. With help of
Proxetta, JTX can be applied on methods that are annotated with
In most applications we would have only two types of transactions: one
that only read and one that allows writing data.
annotation by default matches read-only transactions, meaning that on
every place where read-write transaction is needed, user have to write
this with annotation elements.
To reduce this boilerplate code, it is possible to define custom annotation that takes different default values.