Easy transactions using Spring JDBC?

Question

I am working on a Java app that uses Spring IoC and JDBC Template classes. I have a DAO class that has 4 methods : m1() to m4(). m1 performs multiple inserts and updates on table t1, m2 on table t2, m3 on t3, etc.

The DAO methods are used as follows:

while(true)
{
  //process & generate data

  dao.m1(data1);
  dao.m2(data2);
  dao.m3(data3);
  dao.m4(data4);

  //sleep
}

I want the db operations under the 4 consecutive method calls to be atomic, either all the 4 tables are updated successfully or none are. So, if there is an error while performing operations in m3(), i want to rollback all the changes(updates & inserts) performed in m2 & m1.

So does spring let you do it the following way ?

while (true)
{
  //process & generate data

  transaction = TransactionManager.createNewTransaction();

  transaction.start()

  try
  {
    dao.m1(data1);
    dao.m2(data2);
    dao.m3(data3);
    dao.m4(data4);
  }
  catch(DbUpdateException e)
  {
    transaction.rollBack();
  }

  transaction.end();

  // sleep

}

or are there better ways to do it?

Answer 1

For completeness, the programmatic solution would be:

private TransactionTemplate transactionTemplate;

public setTransactionManager(PlatformTransactionManager transactionManager) {
  this.transactionTemplate = new TransactionTemplate(transactionManager);
}

...

while (true) {

  transactionTemplate.execute(new TransactionCallbackWithoutResult() {
    protected void doInTransactionWithoutResult(TransactionStatus status) {
      try {
        dao.m1(data1);
        dao.m2(data2);
        dao.m3(data3);
        dao.m4(data4);
      } catch(DbUpdateException e) {
        status.setRollbackOnly();
      }
    }
  });
}