Examples of org.apache.openjpa.kernel.StoreManager.begin()

org.apache.openjpa.kernel.StoreManager.begin()

Begin a data store transaction. After this method is called, it is assumed that all further operations are operating in a single transaction that can be committed or rolled back. If optimistic transactions are in use, this method will only be called when the system requires a transactionally consistent connection due to a user request to flush or commit the transaction. In this case, it is possible that the optimistic transaction does not have the latest versions of all instances (i.e. another transaction has modified the same instances and committed since the optimistic transaction started). On commit, an exception must be thrown on any attempt to overwrite data for an instance with an older version. @since 0.2.5

            sms = _cache.getStateManagers();
            _cache.clear();
        }
        if (sms != null && !sms.isEmpty()) {
            storeManager.retainConnection();
            storeManager.begin();
            errors = storeManager.flush(sms);
            if(errors != null && !errors.isEmpty() ) {
                for(Exception e : errors) {
                    // TODO add error handling.
                    e.printStackTrace();

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.