public boolean contains(MetaField f) { java.util.Iterator it = fieldIterator();
public boolean contains(MetaEntity e) { java.util.Iterator it = entityIterator();
    public boolean contains(MetaField f) {        java.util.Iterator it = fieldIterator();        while (it.hasNext()) {            MetaField tmp = (MetaField) it.next();            if (tmp.equals(f)) {                return true;               }        }        return false;    }