What is the 'best' way to do distributed transactions across multiple databases using Spring and Hibernate

Question

I have an application - more like a utility - that sits in a corner and updates two different databases periodically.

It is a little standalone app that has been bu

Answer 1

Setup a transaction manager in your context. Spring docs have examples, and it is very simple. Then when you want to execute a transaction:

try { 
    TransactionTemplate tt = new TransactionTemplate(txManager);

    tt.execute(new TransactionCallbackWithoutResult(){
    protected void doInTransactionWithoutResult(
            TransactionStatus status) {
        updateDb1();
        updateDb2();
    }
} catch (TransactionException ex) {
    // handle 
}

For more examples, and information perhaps look at this: XA transactions using Spring