//the factory: 

/* (...) */
    public Table table(int minHeight,int style) {
        DBTable res=new DBTable(curParentElement,SWT.SINGLE|SWT.FULL_SELECTION|style);
        res.setLinesVisible(true);
        res.setHeaderVisible(true);
        initComposite(res);
        curParentElement=res;
        curElement=res;
        
        if (minHeight>0)
            setMinimalHeight(minHeight);
        
        return res;
    }

    public Table checkTable(){
        return table(0, SWT.CHECK | SWT.V_SCROLL);
    }
/* (...) */

//the screen class:

/* (...) */

table = factory.checkTable();
factory.verticalFill();
table.setHeaderVisible(false);
table.setLinesVisible(true);
table.getHorizontalBar().setEnabled(true);
table.getHorizontalBar().setVisible(true);

/* (...) */