public void print(int l)
        {
            print(l, "Schema");
            if (m_schemaHeader != null)
                {
                m_schemaHeader.print(l + 1);
                }
            if (m_declaration != null)
                {
                m_declaration.print(l + 1);
                }
            if (m_predicateList != null)
                {
                m_predicateList.print(l + 1);
                }
        }