vaadin gui ,check box caption showing on left in formfieldfactory need to show on right

Create Field to add all required field need to add a check box "cb2" as well but the caption showing on right but I need to show it on left.

public Field createField(Item item, Object property, Component uiContext) {

    String pid = (String) property;

    if (pid.equals("group_id")) {
        try {
            groupofList = new GroupEntityContainer();

            groupofList = DA.getGroupList();
        } catch (Exception e) {
            LOGGER.log(Level.WARNING, "GroupEntityComboBox DataAccessContainer().getGroupList() failed " + e.getMessage());
        }

        Select select = new Select("User Role");

        if (groupofList != null) {
            for (int i = 0; i < groupofList.size(); i++) {
                Collection<GroupEntity> ar = groupofList.getItemIds();
                Iterator<GroupEntity> iterator = ar.iterator();
                while (iterator.hasNext()) {
                    GroupEntity c = iterator.next();
                    select.addItem(c.getGroup_id());
                    select.setItemCaption(c.getGroup_id(), c.getGroupname());
                }
            }
            select.setNewItemsAllowed(false);
            select.setImmediate(true);
            return select;
        }
    }else if(pid.equals("apply_acess_control")){
         cb2=new CheckBox(pid);
        cb2.setEnabled(true);
        //cb2.setStyle("float:left");
        ValueChangeListener listner = new ValueChangeListener() {

            /**
             * 
             */


            @Override
            public void valueChange(ValueChangeEvent event) {


                if(txndays !=null){
                txndays.setEnabled((Boolean) event.getProperty().getValue());
                //txndays.setValue(null);
                }                    
                //reengagementSelect.setVisible((Boolean) event.getProperty().getValue());
            }
        };
        cb2.addListener(listner);
        cb2.setImmediate(true);
       // cb2.setCaption("apply_acess_control");
        return cb2;
    } 
    else {
        TextField tx = new TextField(pid);
        if(pid.equals("inactivity_days"))
        {
            txndays= new TextField(pid);
            if(cb2.booleanValue())
            {
                txndays.setEnabled(true);

            }else{
            txndays.setEnabled(false);
            txndays.setNullRepresentation("");
            }


            return txndays;
        }
        if (pid.equals("userPass"))
            // tx.setSecret(true);
            tx.setMaxLength(15);
        return tx;
    }

    return null;
}

FormFieldFactory:-

public Field createField(Item item, Object property, Component uiContext) {

    String pid = (String) property;

    if (pid.equals("group_id")) {
        try {
            groupofList = new GroupEntityContainer();

            groupofList = DA.getGroupList();
        } catch (Exception e) {
            LOGGER.log(Level.WARNING, "GroupEntityComboBox DataAccessContainer().getGroupList() failed " + e.getMessage());
        }

        Select select = new Select("User Role");

        if (groupofList != null) {
            for (int i = 0; i < groupofList.size(); i++) {
                Collection<GroupEntity> ar = groupofList.getItemIds();
                Iterator<GroupEntity> iterator = ar.iterator();
                while (iterator.hasNext()) {
                    GroupEntity c = iterator.next();
                    select.addItem(c.getGroup_id());
                    select.setItemCaption(c.getGroup_id(), c.getGroupname());
                }
            }
            select.setNewItemsAllowed(false);
            select.setImmediate(true);
            return select;
        }
    }else if(pid.equals("apply_acess_control")){
         cb2=new CheckBox(pid);
        cb2.setEnabled(true);
        //cb2.setStyle("float:left");
        ValueChangeListener listner = new ValueChangeListener() {

            /**
             * 
             */


            @Override
            public void valueChange(ValueChangeEvent event) {


                if(txndays !=null){
                txndays.setEnabled((Boolean) event.getProperty().getValue());
                //txndays.setValue(null);
                }                    
                //reengagementSelect.setVisible((Boolean) event.getProperty().getValue());
            }
        };
        cb2.addListener(listner);
        cb2.setImmediate(true);
       // cb2.setCaption("apply_acess_control");
        return cb2;
    } 
    else {
        TextField tx = new TextField(pid);
        if(pid.equals("inactivity_days"))
        {
            txndays= new TextField(pid);
            if(cb2.booleanValue())
            {
                txndays.setEnabled(true);

            }else{
            txndays.setEnabled(false);
            txndays.setNullRepresentation("");
            }


            return txndays;
        }
        if (pid.equals("userPass"))
            // tx.setSecret(true);
            tx.setMaxLength(15);
        return tx;
    }

    return null;
}