* <br>
* Starts a new transaction on the transaction manager configured in jTester
*/
public void startTransaction() {
try {
DBEnvironment environment = DBEnvironmentFactory.getCurrentDBEnvironment();
DataSource dataSource = environment.getDataSource(true);
PlatformTransactionManager platformTransactionManager = new DataSourceTransactionManager(dataSource);
setTransaction(platformTransactionManager);
} catch (UnConfigDataBaseTypeException e) {
setTransaction(null);