Transactions with Spring (2)

private PlatformTransactionManager txnMgr;

/**
 * Spring IoC method
 * @param value The injected value.
 * @spring.property ref="transactionManager"
 */
public void setTransactionManager(PlatformTransactionManager value) {
  txnMgr = value;
}

public void doSomething() {
  TransactionTemplate tt = new TransactionTemplate(txnMgr);
  tt.setPropagationBehavior(
      TransactionDefinition.PROPAGATION_NOT_SUPPORTED);
  tt.setTimeout(500);
  Object result = tt.execute(new TransactionCallback() {
    public Object doInTransaction(TransactionStatus status) {
      // transactional code goes here  
    }
  });
}